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Vestnik MGSU 2014/1

DOI : 10.22227/1997-0935.2014.1

Articles count - 26

Pages - 215

ARCHITECTURE AND URBAN DEVELOPMENT. RESTRUCTURING AND RESTORATION

Development prospects of resort townsin the Republic of Armenia

  • Avetisyan Narek Avetisovich - Yerevan State University of Architecture and Construction (ErGUAS) postgraduate student, Depart- ment of Theory of Architecture, Restoration and Reconstruction of Historical Heritage, Fine Arts and History, Yerevan State University of Architecture and Construction (ErGUAS), 48 Davtashen Dzor 1, Yerevan, 0054, Armenia; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 7-14

The current state of the resort towns and their diversification in Armenia are discussed in the context of sustainable development. Armenia doesn’t currently stand out among the tourist destinations of the world, despite its historical and cultural heritage and natural resources. In this article the town Jermuk is described, which is located in Vayots Dzor region of Armenia. Health centers and other infrastructures of Armenian re- sorts were built in the period of the Soviet Union; they were restored in recent times. The main development trends of Jermuk should follow the upgrade of already built resorts (their leading examples at the European level), at the same time creating more active environment in order to meet the requirements of local population and visitors, taking into account the surrounding natural landscape and its features. One of the important issues, which should be taken into account, is the problem of seasonality (the city has no money to give for the opportunity to diversify the tourism offer in winter), and the economy with the only activity (thermal function).Within a few years, Jermuk has rediscovered its perspectives and expresses the desire to acquire its place in the international market of spa tourism at a future date. Thus, the question of assessing the historical and cultural heritage is now one of the most pressing problems of the city, which is on the eve of important decisions on the future direction of resuming recovery services. For the revival and development of Jermuk in the medium and long term, and in order to identify urban and architectural interventions, we should note some important issues:Updating the thermal functions of the city: This area of Jermuk still attracts a large clientele in summer, mainly from Yerevan, the Armenian diaspora and from the former Soviet republics (mainly from Russia). At the same time, the increase in the tourist attraction level requires upgrading public-safety and recreational facilities in order to meet the current needs of national and international clients.Diversification of tourism offer: In order to cope with international competition, Jer- muk should diversify its summer travel offers for increasing tourist flows even during the winter season. In this context, it should also be noted that Jermuk has all the necessary conditions (mountain ranges and favorable climate of the region of Vayots Dzor, quantity and quality of snow in the winter) for the development of winter sports (downhill and cross-country skiing, etc.).Integration of the local population in the process of urban and economic development of the city is also important. Evaluation of Armenian culture in the context of economic development can only be achieved by relying on the skills of people.

DOI: 10.22227/1997-0935.2014.1.7-14

References
  1. Agadzhanyan G.I., Topchyan Zh.S. Kurorty i kurortnye mestnosti Armenii [Resorts and Resort Areas of Armenia]. Erevan, Ayastan Publ., 1968, 278 p.
  2. Voskresenskiy V.Yu. Mezhdunarodnyy turizm [International Tourism]. Moscow, Yuniti Publ., 2006, 253 p.
  3. Christian Jamot. Thermalisme et villes thermales en France. Universit? de Clermont-Ferrand II, 1988, 540 p.
  4. Grenier L. Villes d’eaux en France. Institut Francaises d’Architecture Paris, 1985, Editions Fernand Hazan, 397 p.
  5. Dominique Jarrasse. 2000 ans de thermalisme, Economie, patrimoine, rites et pratiques. Publication de l’institut d’?tudes du massif central, collection «Thermalisme et Civilisation». Presse Univ. Blaise Pascal, 1996, 236 p.
  6. Marc Boyer Le thermalisme dans le grand sud-est de la France. Presses Universitaires de Grenoble, 2005, 420 p.
  7. Ecole nationale sup?rieure des beaux-arts (France). Villes d’eaux en France, 1985, 397 p.
  8. Melik-Adamyan A.A. Dzhermuk-Bal'neo-klimaticheskiy kurort [Jermuk-Balneo-climatic Resort]. Erevan, Ministerstvo Zdravookhraneniya Arm. SSR Publ., 1948, 270 p.
  9. Reshenie pravitel'stva RA (2008) ¹ 1064. Priznat' g. Dzhermuk kak turisticheskiy tsentr [Resolution of the Government of the Republic of Armenia (2008) # 1064. To Declare Jermuk City a Touristic Center].
  10. Etude effectu?e par agence suisse Tigerdev pour le Minist?re de l`Economie de la R?publique d`Arm?nie et pour la municipalit? de Djermouk. Erevan, 2006, 66 p.
  11. Birzhakova M.B., Nikiforova V.I., editors. Chast' XX. Ekologicheskiy turizm [Part 20. Ecological Tourism]. Turistskie firmy [Touristic Companies]. 2005, no. 35(3), pp. 309—342.
  12. Znamenskaya E., Oppengeym D. Rekomendatsii po planirovke, zastroyke i blagoustroystvu kurortov [Recommendations on Planning, Building and Development of Resorts]. Moscow, Tsentr nauchno-tekhnicheskoy informatsii po grazhdanskomu stroitel'stvu i arkhitekture Publ., 1967, 120 p.

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Preserving urban objects of historicaland architectural heritage

  • Bal'zannikova Ekaterina Mikhailovna - Samara State University of Architecture and Civil Engineering (SGASU) аssistant, Depart- ment of Architecture, Samara State University of Architecture and Civil Engineering (SGASU), 194 Molodogvardeyskaya St., Samara, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 15-24

Large cities of central Russia were built under the influence of the factors that played an important role in protecting their population; natural resources and opportunities for trading were also essential. The industrial development and construction of large industrial facilities were significant for the formation of urban environment. As a result architectural monuments of great historical value that have a significant influence on the formation of the modern city image were preserved.Nowadays, a great number of buildings of historical and architectural heritage turned out to be in poor condition. Funding and its efficient use are rational means of saving the most valuable objects of historical and cultural heritage. In order to do this it is necessary to solve the problems of developing complex and effective measures for preserving these objectsThe existing method of preserving urban objects does not focus on urban architectural objects of historical and architectural value. It does not cover the study of urban development features in architectural and town-planning environment surrounding this object, it does not determine the historical and architectural value of the object and it does not identify the relationship of the object and the surrounding objects as well as architectural frame of the total area. That is why the existing method cannot be considered an appropriate system for preserving the objects of historical and architectural heritage.In order to avoid the disadvantages mentioned above and to increase tourist interest to the architecturally valuable buildings in urban areas, the author has proposed a complex approach to improve the method of reconstructing urban objects of great historical and architectural significance.The existing method of preserving historical objects includes the preparatory period of studying the degree of historical and architectural heritage wear and decay, developing the techniques for strengthening structural elements, delivering building materials, preparing the construction site and the basic period when condemned structures are demolished, new design elements are formed and assembled, interior finishing work is performed and the object facade is restored. In contrast to it, our method includes additional periods and a performance list. In particular, it is proposed to carry out a research period prior to the preparatory period, and after the basic period there should be the ending period.Thus, during the research period it is necessary to study urban development fea- tures in architectural and town-planning environment, to identify the historical and archi- tectural value of the object, to estimate its ramshackle state and whether it is habitable, to determine the relationship of the object with the architectural and aesthetic image of sur- rounding objects and to develop a conservation program; and during the ending period it is proposed to assess the historical and architectural significance of the reconstructed object in relation to the aesthetic and architectural image of the surrounding area. The proposed complex method will increase the attractiveness of a historical and architectural heritage object and its surrounding area for tourists and, consequently, raise the cultural level of the visitors. Furthermore, the method will ensure the construction of recreation zones, their more frequent usage and visiting surrounding objects of social infrastructure, because more opportunities for cultural and aesthetic pastime will be offered. The method will also provide a more reasonable and effective use of available funding due to the careful analysis and proper choice of the methods to preserve objects of historical and architectural heritage.

DOI: 10.22227/1997-0935.2014.1.15-24

References
  1. Rybal'chenko Yu.D., Samogorov V.A. Gradostroitel'nye preobrazovaniya v provintsial'nykh gorodakh Rossii XVIII — nachala XX vv. [Urban Development in Provincial Cities of Russia in 18th — 20th Centuries]. Privolzhskiy nauchnyy zhurnal [Volga Scientific Journal]. 2009, no. 2, pp. 65—71.
  2. Bal'zannikova E.M. Gradostroitel'noe formirovanie Samary i razvitie promyshlennosti goroda v kontse XIX — nachale XX v. [Urban and Industrial Development of Samara in the Late 19th — early 20th Century]. Vestnik SGASU. Gradostroitel'stvo i arkhitektura [Samara State University of Architecture and Civil Engineering. Urban Planning and Architecture]. 2011, no. 1, pp. 44—48.
  3. Samogorov V.A., Ivanov M.O. Arkhitektura Aleksandra i Petra Shcherbachevykh v Samare [Architecture of Alexander and Peter Shcherbachevs in Samara]. Samara, 2004, 119 p.
  4. Vavilonskaya T.V. Zadachi sistemnogo planirovaniya v usloviyakh arkhitekturno-istoricheskoy sredy [Issues of System Planning in the Architectural and Historical Environment]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 2, pp. 14—17.
  5. Vavilonskaya T.V. Strategiya obnovleniya arkhitekturno-istoricheskoy sredy: monografiya [Strategy of Renewing Architectural and Historical Environment]. Samara, SGASU Publ., 2008, 368 p.
  6. Karkar'yan V.G. Derevyannoe zodchestvo Samary, ili Osen' patriarkhov [Wooden Architecture of Samara or Patriarchs's Autumn]. Samara, Agni Publ., 2002, 152 p.
  7. Baranova T.V., Kosenkova N.A. Synthetic Image of Orthodox Architecture in the Middle Volga. Sacred Architecture in Shaping the Identity of Place. Politechnika Lubelska, Lublin, 2006, pp. 149—157.
  8. Cevat Erder. Our Architectural Heritage: from Consciousness to Conversation. UNESCO, United Kingdom, 1986, 236 p.
  9. Bal'zannikov M.I., Privorotskiy D.S. Reshenie voprosov zritel'nogo vospriyatiya pri stroitel'stve khrama sv. Georgiya Pobedonostsa v Samare [Issues of Visual Perception when Constructing the Church of St. George the Victory-bearer in Samara]. Architektura sakralna w ksztaltovaniu tozsamosci kulturowej miejsca. Lublin, Wydawnictwo Politechniki Lubelskiej, 2006, pp. 345—357.
  10. Bernard Feilden, Perek Linstrum. A European View. New Uses for Old Buildings. Architectural Conservation in Europe. Edited by Sherban Cantacuzino. Watson-Guptill Publications, New York, 1975, pp. 127—130.
  11. Bernard Feilden. Conservation of Historical Buildings. London, Butterworth and Co (Publishers) Ltd., 1982, pp. 6—12.
  12. Dennis Rodwell. Conversation legislation. New Uses for Old Buildings. Architectural Conservation in Europe. Edited by Sherban Cantacuzino. Watson-Guptill Publications, New York, 1975, pp. 127—136.
  13. Rybacheva O.S., Samogorov V.A. Ponyatie «Samarskiy dvor» v sisteme pravoustanavlivayushchikh i gradoreguliruyushchikh dokumentov [The Concept of "Samara Yard" in the System of Title and Town-development Documents]. Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universitetata [Proceedings of Tomsk State University of Architecture and Building]. 2012, no. 4 (37), pp. 65—74.
  14. Samogorov V.A., Bal'zannikova E.M. Predpriyatiya po proizvodstvu stroitel'nykh materialov v Samarskom krae v kontse XIX — nachale XX vekov [Enterprises Producing Building Materials in the Samara Region in the Late XIX Early XX Centuries]. Vestnik Volzhskogo regional'nogo otdeleniya RAASN [Proceedings of Volga Regional Division of Russian Academy of Architecture and Construction Sciences]. 2013, no. 16, pp. 122—126.
  15. Bal'zannikova E.M. Istoriya razvitiya predpriyatiy mukomol'noy promyshlennosti v Samare v kontse XIX — nachale XX vekov [The History of Flour Milling Enterprises Development in Samara in the late 19th — Early 20th Centuries]. Vestnik SGASU. Gradostroitel'stvo i arkhitektura [Samara State University of Architecture and Civil Engineering. Urban Planning and Architecture]. 2012, no. 3, pp. 6—10.
  16. Bal'zannikova E.M. Rekonstruktsiya promyshlennoy zastroyki po printsipu organizatsii loftov [Reconstruction of Industrial Development on the Principle of Loft Organization]. Traditsii i innovatsii v stroitel'stve i arkhitekture: Materialy 69-y Vserossiyskoy nauchno-tekhnicheskoy konferentsii [Traditions and Innovations: Materials of the 69th All-Russian Scientific and Technical Conference]. Samara, SGASU Publ., 2012, Part 1, pp. 401—404.
  17. Khimunina S.D., editor. Ukazaniya po tekhnologii remontno-stroitel'nogo proizvodstva i tekhnologicheskie karty na raboty pri kapital'nom remonte zhilykh domov. Kn. 1. Obshchestvennye raboty [Instructions for Repair and Construction Technology of and Technological Maps for Major Repairing of Residential Housing. Book 1. Public Work]. 2nd edition. Leningrad, Stroyizdat Publ., 1977, 432 p.
  18. Samogorov V.A., Rybacheva O.S. Rekonstruktsiya istoricheskoy chasti Samary s uchetom slozhivshikhsya granits uchastkov zemlepol'zovaniya (dvorovykh prostranstv) [Reconstruction of the Historical Part of Samara Considering the Existing Boundaries of Land Lots (Courtyard Spaces)]. Vestnik Volgogradskogo gosudarstvennogo arkhitekturno-stroitelnogo universitetata. Seriya: Stroitel'stvovo i arkhitektura [Volgograd State University of Architecture and Civil Engineering]. 2013, no. 31 (50), Part. 1. Goroda Rossii. Problemy proektirovaniya i realizatsii [Cities of Russia. Problems of Design and Implementation]. Pp. 300—304.
  19. Samogorov V.A., Rybacheva O.S. Novoe stroitel'stvo v usloviyakh istoricheski slozhivsheysya zastroyki Samary s uchetom granits dvorovladeniy [New Construction Work in the Conditions of Historical Development of Samara Considering the Boundaries of Tenancy]. Vestnik SGASU. Gradostroitel'stvo i arkhitektura [Proceedings of Samara State University of Architecture and Civil Engineering. Urban Planning and Architecture]. 2011, no. 3, pp. 70—72.
  20. Vavilonskaya T.V. Strategiya obnovleniya arkhitekturno-istoricheskoy sredy (na primere g. Samary) [Strategy of Renewing Architectural and Historical Environment (on the Example of Samara City]. Izvestiya OrelGTU. Seriya: Stroitel'stvo i transport [News of State University — Education-Science-Production Complex of Orel. Series: Construction and Transport]. 2009, no. 3/23, pp. 68—72.

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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

Inverse problemfor an inhomogeneous elastic beam at a combined strength

  • Andreev Vladimir Igorevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, corresponding member of Russian Academy of Architecture and Construction Sciences, chair, Department of Strength of Materials, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Barmenkova Elena Vyacheslavovna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Science, Associate Professor, Department of the Strength of materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Matveeva Alena Vladimirovna - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of the Strength of materials, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 25-32

In the article the authors describe a method of optimizing the stress state of an elastic beam, subject to the simultaneous action of the central concentrated force and bending moment. The optimization method is based on solving the inverse problem of the strength of materials, consisting in defining the law of changing in elasticity modulus with beam cross-section altitude. With this changing the stress state will be preset. Most problems of the elasticity theory of inhomogeneous bodies are solved in direct formulation, the essence of which is to determine the stress-strain state of a body at the known dependences of the material elastic characteristics from the coordinates. There are also some solutions of the inverse problems of the elasticity theory, in which the dependences of the mechanical characteristics from the coordinates, at which the stress state of a body is preset, are determined. In the paper the authors solve the problem of finding a dependence modulus of elasticity, where the stresses will be constant over the beam’s cross section. We will solve the problem of combined strength (in the case of the central stretching and bending). We will use an iterative method. As the initial solution, we take the solution for a homogeneous material. As the first approximation, we consider the stress state of a beam, when the modulus of elasticity varies linearly. According to the results, it can be stated that three approximations are sufficient in the considered problem. The obtained results allow us to use them in assessing the strength of a beam and its optimization.

DOI: 10.22227/1997-0935.2014.1.25-32

References
  1. Sobolevskiy V.V. Nekotorye sluchai integrirovaniya obyknovennogo differentsial'nogo uravneniya, opisyvayushchego napryazhennoe sostoyanie anizotropnogo neodnorodnogo i neravnomerno nagretogo pologo shara [Some Cases of Integration of an Ordinary Differential Equation Describing the Stress State of Anisotropic Inhomogeneous and Non-uniformly Heated Hollow Sphere]. Izvestiya AN BSSR. Seriya Fiziko-tekhnicheskikh nauk [News of the Academy of Sciences of Belorussia. Physical and Technical Sciences Series]. 1963, no. 2, pp. 20—29.
  2. Zhitkov P.N. Ploskaya zadacha teorii uprugosti neodnorodnogo ortotropnogo tela v polyarnykh koordinatakh [The Plane Problem of Elasticity Theory of Inhomogeneous Orthotropic Body in Polar Coordinates]. Trudy Voronezhskogo gosudarstvennogo universitetata. Fiz.-mat.: sbornik [Works of Voronezh State University. Physics and Mathematics: Collection]. 1954, vol. XXVII, pp. 30—35.
  3. Rostovtsev N.A. K teorii uprugosti neodnorodnykh tel [The Theory of Elasticity of Inhomogeneous Bodies]. Prikladnaya matematika i mekhanika [Applied Mathematics and Mechanics]. 1964, vol. 28, no. 4, pp. 601—611.
  4. Lekhnitskiy S.G. Radial'noe raspredelenie napryazheniy v kline i poluploskosti s peremennym modulem uprugosti [The Radial Distribution of Stresses in the Wedge and Half-plane with Variable Modulus of Elasticity]. Prikladnaya matematika i mekhanika [Applied Mathematics and Mechanics]. 1962, vol. XXVI, no. 1, pp. 146—151.
  5. Torlin V.N. Pryamaya i obratnaya zadachi teorii uprugosti dlya neodnorodnogo tela [Direct and Inverse Problems of the Theory of Elasticity for an Inhomogeneous Body]. Prikladnaya mekhanika [Applied Mechanics]. 1976, vol. XII, no. 3, pp. 28—35.
  6. Andreev V.I., Potekhin I.A. O sposobe sozdaniya optimal'nykh konstruktsiy na osnove resheniya obratnykh zadach teorii uprugosti neodnorodnykh tel [On the Method of Creating Optimal Constructions Basing on the Solution of Inverse Problems of the Elasticity Theory of Inhomogeneous Bodies]. RAASN, Vestnik otdeleniya stroitel'nykh nauk [Russian Academy of Construction Sciences. Proceedings of the Department of Construction Sciences]. 2007, no. 11, pp. 48—52.
  7. Andreev V.I. Optimization of Thick-walled Shells Based on Solutions of Inverse Problems of the Elastic Theory for Inhomogeneous Bodies. Computer Aided Optimum Design in Engineering. 2012, pp. 189—202.
  8. Kravanja S., ?lender B. Optimization of the Underground Gas Storage in Different Rock Environments. Computer Aided Optimum Design in Engineering. 2012, pp. 15—26.
  9. Issa H.K. Simplified Structural Analysis of Steel Portal Frames Developed from Structural Optimization. Computer Aided Optimum Design in Engineering. 2012, pp. 47—58.
  10. Syngellakis S. Longitudinal Buckling of Slender Pressurized Tubes. Fluid Structure Interaction XII. 2013, pp. 133—144.

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The reaction of the building structure with window unit to the explosiveimpact on the basis of dynamic equation solution

  • Doronin Fedor Leonidovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulics and Water Resources, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, 129337, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Truchanova Lyudmila Nikolaevna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Pro- fessor, Department of Physics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, 129337, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Fomina Marina Vasilyevna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Professor, Department of Physics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, 129337, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 33-40

When designing residential buildings, additional measures for increasing the strength at dynamic effects indoors are not foreseen. The walls of the structure fixed in the framework are not designed for shock wave caused by explosion of utility gas. When designing a building, the task of the special dynamic load is often reduced to the calculation of the safe shock pressure, exceeding of which leads to the destruction of the structures. The wall with the window area under dynamic effects is a blast relief panel, which reduces the excess pressure inside the room. The proposed method of calculating a design with a window unit allows determining the dynamic reaction of the wall on explosive pulse. The proposed calculation technique of the constructions at shock loads allows tracing the changes of the inertial forces and displacements at any stage of dynamic response. The reaction to dynamic loads can be also set for non-monolithic structures, consisting of different materials with different conditions of fastening. Elastoplastic reaction of a brick wall with glass units was determined using step-by-step method of linear acceleration. The calculation of stress-strain state of brick walls with window panes determined the strength properties of the structures close to the monolithic version. The proposed technique of numerical solution of dynamic equations is applied only in the analysis of elastic systems, in which the dynamic characteristics remain unchanged throughout the reaction process.

DOI: 10.22227/1997-0935.2014.1.33-40

References
  1. Abrosimov A.A., Komarov A.A. Meropriyatiya, obespechivayushchie bezopasnye nagruzki pri avariynykh vzryvakh v zdaniyakh so vzryvoopasnymi tekhnologiyami [Measures Providing Proof Loads at Accidental Explosions in the Buildings with Explosion Hazardous Technologies]. Seysmostoykoe stroitel'stvo. Bezopasnost' sooruzheniy [Antiseismic Construction. Security of Structures]. 2002, no. 4, pp. 48—51.
  2. Komarov A.A. Razrushenie zdaniy pri avariynykh vzryvakh bytovogo gaza [Destruction of Buildings Subject to Accidental Explosions of the Utility Gas]. Pozharobezopasnost [Fire Safety]. 2004, vol. 13, no. 5, pp. 15—23.
  3. Pilyugin L.P. Obespechenie vzryvoustoychivosti zdaniy s pomoshch'yu predokhranitel'nykh konstruktsiy [Ensuring Blast Resistance of Buildings with the Help of Protecting Structures]. Moscow, Pozhnauka Publ., 2000, 224 p.
  4. Mishuev A.V., Komarov A.A., Khusnutdinov D.Z. Obshchie zakonomernosti razvitiya avariynykh vzryvov i metody snizheniya vzryvnykh nagruzok do bezopasnogo urovnya [Common Patterns of Accidental Explosions Development and Methods of Reducing Explosive Loads up to the Safe Level]. Pozharobezopasnost [Fire Safety]. 2001, vol. 10, no. 6, pp. 8—19.
  5. Komarov A.A. Analiz posledstviy avariynogo vzryva prirodnogo gaza v zhilom dome [The Analysis of the Consequences of Natural Gas Explosions in Residential Building]. Pozharobezopasnost [Fire Safety]. 1999, vol. 8, no. 4, pp. 49—53.
  6. Newmark N.M., Rosenblueth E. Fundamentals of Earthquake Engineering. Prentice-Hall, Inc. Englewood Cliffs, New York, 1971, 344 p.
  7. Ambriashvili Yu.K., Anan'in A.I., Barchenkov A.G. and others. Spravochnik proektirovshchika. Dinamicheskiy raschet spetsial'nykh inzhenernykh sooruzheniy i konstruktsiy [Designer's Guidance. Dynamic Calculation of Special Engineering Structures and Constructions]. Moscow, Stroyizdat Publ., 1986, 462 p.
  8. Clough R.W., Penzien J. Dynamics of Structures. World Book Company, New York, 1977, 320 p.
  9. Korn G.A., Korn T.M. Mathematical Handbook for Scientists and Engineers. Second Edition. Dover, New York, 2000, 943 p.
  10. Doronin F.L., Lyapin A.Yu. Raschet konstruktsiy sooruzheniy na vzryvnuyu nagruzku na osnove chislennogo resheniya uravneniya dvizheniya [Calculation of Building Structures for the Explosive Load Basing on Numerical Solutions of Motion Equation]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 4, pp. 72—78.

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Foundation calculation for buildings and structures with two elastic characteristics of the foundation using features of Fourier transformsfor finite functions

  • Kurbatskiy Evgeniy Nikolaevich - Moscow State University of Railway Engineering (MIIT) Doctor of Technical Sci- ences, Professor, head, Department of Underground Structures, Moscow State University of Railway Engineering (MIIT), 9-9 Obraztsova st., Moscow, 127994, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Mai Duc Minh. - Moscow State University of Railway Engineering (MIIT) postgraduate student, Department of Underground Structures, Moscow State University of Railway Engineering (MIIT), 9-9 Obraztsova st., Moscow, 127994, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 41-51

The problem of a beam resting on elastic foundation often occurs in the analysis of building, geotechnical, highway, and railroad structures. Its solution demands modeling of the mechanical behavior of the beam, the mechanical behavior of the soil as elastic subgrade and the form of interaction between the beam and the soil. The oldest, most fa- mous and most frequently used mechanical model is the one devised by Winkler (1867), in which the beam-supporting soil is modeled as a series of closely spaced, mutually independent, linear elastic vertical springs, which, evidently, provide resistance in direct proportion to the deflection of the beam.The solution is presented for the problem of an Euler–Bernoulli beam supported by an infinite two-parameter Pasternak foundation. The beam is subjected to arbitrarily distributed or concentrated vertical loading along its length. Static response of a beam on an elastic foundation characterized by two parameters is investigated assuming, that the beam is subjected to external loads and two concentrated edge load. The governing equations of the problem are obtained and solved by pointing out that there is a concentrated edge foundation reaction in addition to a continuous foundation reaction along the beam axis in the case of complete contact in the foundation reactions of the two-parameter foundation model. The proposed method is based on the properties of Fourier transforms of the finite functions. Particular attention is paid to the problem, taking into account the deformation of soil areas outside the beam. The beam model with two foundation coefficients more realistically describes the behavior of strip footings under loading.

DOI: 10.22227/1997-0935.2014.1.41-51

References
  1. Korenev B.G. Voprosy rascheta balok i plit na uprugom osnovanii [Problems of Calculating Beams and Slabs on Elastic Foundation]. Moscow, Gosstroyizdat Publ., 1954, 231 p.
  2. Gorbunov-Posadov M.I, Malikova T.A. Raschet konstruktsiy na uprugom osnovanii [Calculation of Structures on Elastic Foundation]. 2-nd edition. Moscow, Stroyizdat Publ., 1973, 627 p.
  3. Pasternak P.L. Osnovy novogo metoda rascheta fundamentov na uprugom osnovanii pri pomoshchi dvukh koeffitsientov posteli [Fundamentals of a New Method of Elastic Foundation Analysis by Means of Two-constants]. Moscow, 1954, 55 p.
  4. Celep Z., Demir F. Symmetrically Loaded Beam on a Two-parameter Tensionless Foundation. Structural Engineering and Mechanics. 2007, vol. 27, no. 5, pp. 555—574.
  5. Eisenberger M., Bielak J. Finite Beams on Infinite Two-parameter Elastic Foundations. Computers & Structures. 1992, vol. 42, no. 4, pp. 661—664.
  6. Sapountzakis E.J., Kampitsis A.E. Inelastic Analysis of Beams on Two Parameter Tensionless Elastoplastic Foundation. Engineering Structures. 2013, no. 48, pp. 389—401.
  7. Ma X., Butterworth J.W., Clifton G.C. Static Analysis of an Infinite Beam Resting on a Tensionless Pasternak Foundation. European Journal of Mechanics — A/Solids. 2009, vol. 28, no. 4, ðð. 697—703.
  8. Razaqpur A., Shah K. Exact Analysis of Beams on Two-parameter Elastic Foundations. International Journal of Solids and Structures. 1991, vol. 27, no. 4, pp. 435—454.
  9. Morfidis K., Avramidis I.E. Formulation of a Generalized Beam Element on a Twoparameter Elastic Foundation with Semi-rigid Connections and Rigid Offsets. Computers & Structures. 2002, vol. 80, no. 25, ðð. 1919—1934.
  10. Kurbatskiy E.N. Metod resheniya zadach stroitel'noy mekhaniki i teorii uprugosti, osnovannyy na svoystvakh izobrazheniy Fur'e finitnykh funktsiy [Solution Method for the Tasks of Construction Mechanics and the Elasticity Theory Based on the Properties of Fourier Transform for Finite Functions]. Dissertatsiya na soiskanie uchenoy stepeni doktora tekhnicheskikh nauk [Doctoral Thesis in Engineering Sciences]. Moscow, MIIT Publ., 1995, 205 p.
  11. Mai Duc Minh. Raschet tonneley, raspolozhennykh v uprugoplasticheskikh gruntakh, peresekayushchikh zony razloma, na seysmicheskie vozdeystviya [Seismic Design for the Tunnels Located on Elasto-plastic Soils Across Fault Zones]. Stroitel'stvo i rekonstruktsiya [Construction and Reconstruction]. 2013, no. 1 (45), pp.19—25.
  12. Klepikov S.N. Raschet konstruktsiy na uprugom osnovanii [Calculation of Structures on Elastic Foundation]. Moscow, Kiev Publ., 1967, 185 p.

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The experimental research of GFRPand BFRP operation under compression

  • Lapshinov Andrey Evgenievich - Moscow State University of Civil Engineering (MGSU) postgraduate student, assistant, Department of Reinforced Concrete Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe schosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 52-57

In the foreign countries there are not only design guidelines but also standards for testing FRP materials. These codes do not recommend using FRP bars in compressive members, such as columns. But the compressive strength shouldn’t be neglected according to those design codes. In our country the standards for FRP testing and design codes are just in the process of development.This paper contains the results of a compression testing of GFRP and BFRP with different configurations. The proposed height of the specimen was 1d, 3d and 5d. The results of the tests and failure mechanisms of the samples are discussed. The author also gives strain distribution in dependence with the specimen type. The conclusions and proposals for the use of FRP reinforcement in compression are offered. One of the main conclusions is that with the height increase the compressive strength also increases, while the strain decreases.Basing on the survey results the ratio of tensile strength to compressive strength and the ratio of compressive elasticity modulus to tensile elasticity modulus are given.

DOI: 10.22227/1997-0935.2014.1.52-57

References
  1. ACI 440.1R—06. Guide for the Design and Construction of Structural Concrete Reinforced with FRP Bars. ACI Committee 440, American Concrete Institute, Farmington Hills, Mich, 2006, 44 p.
  2. ACI 440.3R—04. Guide for Test Methods for Fiber Reinforced Polymers (FRP) for Reinforcing and Strengthening Concrete Structures. ACI Committee 440, American Concrete Institute, Farmington Hills, Mich, 2004, 40 p.
  3. CNR-DT 203/2006, 2006. Istruzioni per la Progettazione, l’Esecuzione e il Controllo di Strutture di Calcestruzzo armato con Barre di Materiale Composito Fibrorinforzato (in Italian).
  4. CAN/CSA-S6-02, 2002. Design and Construction of Building Components with Fibre-Reinforced Polymers, CAN/CSA S806-02, Canadian Standards Association, Rexdale, Ontario, Canada, 177 p.
  5. Fib Bulletin #40. FRP Reinforcement in RC Structures. 147 p.
  6. ASTM D6641 / D6641M—09. Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials Using a Combined Loading Compression (CLC) Test Fixture.
  7. ASTM D3410 / D3410M—03(2008). Standard Test Method for Compressive Properties of Polymer Matrix Composite Materials with Unsupported Gage Section by Shear Loading.
  8. ASTM D695—10. Standard Test Method for Compressive Properties of Rigid Plastics.
  9. GOST 4651—82 (ST SEV 2896—81). Plastmassy. Metod ispytaniya na szhatie [Russian State Standard 4651—82 (ST SEV 2896—81). Plastic. Compression Test Method].
  10. Blaznov A.N., Savin V.F., Volkov Yu.P., Tikhonov V.B. Issledovanie prochnosti i ustoychivosti odnonapravlennykh stekloplastikovykh sterzhney pri osevom szhatii [Examining Strength and Stability of Monodirectional Glass Fiber Rods under Axial Compression]. Mekhanika kompozitsionnykh materialov i konstruktsiy]. 2007, vol.13, no. 3, pp. 426—440.

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The approximate method of maximal tensile stress determination in rods of double-contour geodeticdomes of the system “R” exposed to dead load

  • Lakhov Andrey Yakovlevich - Nizhny Novgorod State University of Architecture and Civil Engineering (NNGASU) Candidate of Technical Sci- ences, Associate Professor, Department of Information Systems and Technologies, Nizhny Novgorod State University of Architecture and Civil Engineering (NNGASU), 65 Ilyins- kaya st., 603950, Nizhny Novgorod, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 58-65

The article is a brief review of the research of stress-strain state of a structure that represents a hemispherical geodetic dome exposed to the dead load. Double-contour geodetic domes composed of plates and rods are the subject of the research. The process of their design has two stages: (a) design of geometric models of geodetic domes and (b) analysis of the domes.The author demonstrates that the first stage can be implemented through the employment of the library of ArchiCAD objects. Supplementary research is needed to have the second stage implemented. The objective of this research is to present the results of the research using computeraided methods of metal structures modeling.The article presents a study of the stress-strain state of a construction with a geodetic dome (shell) of the system “R” (classification of prof. G.N. Pavlov). The purpose of the paper is to present the results of numerical modeling in PATRAN/NASTRAN system in the form of approximate formulas. Approximate formulas are presented for calculation of global maximum of stress in second contour.

DOI: 10.22227/1997-0935.2014.1.58-65

References
  1. Pavlov G.N. Osnovnye kontseptsii avtomatizatsii arkhitekturnogo proektirovaniya geodezicheskikh kupolov i obolochek [Main Concepts of Architectural Design Automation of Geodetic Domes and Shells]. Izvestiya vuzov. Seriya «Stroitel'stvo» [News of Institutions of Higher Education. Construction Series]. 2005, no. 10, pp. 104—108.
  2. Pavlov G.N., Suprun A.N. Geodezicheskie kupola — proektirovanie na sovremennom urovne [Geodetic Domes – Up-to-date Design]. SAPR i grafika [CAD Systems and Graphics]. 2006, no. 3, pp. 25—27.
  3. Tupolev M.S. Geometriya sbornykh sfericheskikh kupolov [Geometry of Build-up Spherical Domes]. Arkhitektura SSSR [Architecture of the USSR]. 1969, no. 1, pp. 9—11.
  4. Fuller R.B. Geodesic Dome. Perspecta. 1952, no. 1, pp. 30—33.
  5. Vinogradov G.G. Raschet stroitel'nykh prostranstvennykh konstruktsiy [Analysis of Building Space Structures]. Moscow, Stroyizdat, Leningradskoe otd. Publ., 1990, 264 p.
  6. Suprun A.N, Dyskin L.M., Platov A.Yu., Lakhov A.Ya. Avtomatizirovannoe proektirovanie i raschet na prochnost' odnokonturnykh geodezicheskikh obolochek iz ploskikh elementov [Automated Design and Strength Analysis of Singe-contour Geodetic Shells Composed of Flat Elements]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 8, pp. 226—233.
  7. Andres M., Harte R. Buckling of Concrete Shells: a Simplified Numerical Approach. Journal of the International Association for Shell and Spatial Structures: IASS. 2006, vol. 47, no. 3, December n. 152, pp. 163—175.
  8. Lakhov A.Ya. Priblizhennyy sposob opredeleniya maksimal'nykh napryazheniy v geodezicheskikh odnokonturnykh kupolakh sistemy “P” ot vozdeystviya sobstvennogo vesa [The Approximate Method of Maximal Stress Determination in Single-contour Geodetic Domes of the System “P” Exposed to Dead Load]. Privolzhskiy nauchnyy zhurnal [Volga Region Scientific Journal]. 2013, no. 3, pp. 13—18.
  9. Skopinsky V.N. A Comparative Study of Three-dimensional and Two-dimensional Finite Element Analysis for Intersecting Shells. The Journal of Strain Analysis for Engineering Design. 2001, vol. 36. no. 3, pp. 313—322.
  10. Girling P.R. Geodesic Shells. Thesis of the Requirements for the Degree of M.A.Sc., the Department of Civil Engineering, University of British Columbia. 1957.
  11. Kubik M. Structural Analysis of Geodesic Domes. Final Year Project, Durham University, School of Engineering, April 29, 2009.
  12. Elkina V.N., Zagoruyko N.G., Timerkaev V.S. Algoritmy taksonomii v informatike [Algorithms of Taxonomy in Computer Science]. Informatika i ee problemy [Computer Science and its Problems]. 1972, no. 4, pp. 31—37.

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Using finite element method in the processof strength calculation for the pipeline supports in above-groundarea of "Zapolyar'e — NPS "PUR-PE" oil pipeline

  • Surikov Vitaliy Ivanovich - Research Institute of Oil and Oil Products Transportation (NII TNN) Deputy Director General for the Technology of Oil and Oil Products Transportation, Research Institute of Oil and Oil Products Transportation (NII TNN), 9-5, 2 Verhniy Mikhaylovskiy proezd, 115419, Moscow, Rus- sian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Varshitskiy Viktor Mironovich - Research Institute of Oil and Oil Products Transportation (NII TNN) Candidate of Technical Sciences, head, Department of Strength and Stability Calculation of Pipelines and Main Oil Pipelines Equipment, Research Institute of Oil and Oil Products Transportation (NII TNN), 9-5, 2 Verhniy Mikhaylovskiy proezd, 115419, Moscow, Rus- sian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bondarenko Valeriy Vyacheslavovich - Limited Liability Company "Konar" ("Konar") Candidate of Technical Sciences, director, Limited Liability Company "Konar" ("Konar"), 5 Hlebozavodskaya st, 454038, Chely- abinsk, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Korgin Andrey Valentinovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Academic Advisor, Scientific and Educational Center of Engineering Investigations and Building Struc- tures Monitoring of the Chair of the Test of Structures, Moscow State University of Civil Engineering (MGSU), ; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bogach Andrey Anatol'evich - Research Institute of Oil and Oil Products Transportation (NII TNN) Candidate of Physical and Mathematical Sciences, chief specialist, Department of Strength and Stability Calculation of Pipelines and Main Oil Pipelines Equipment, Research Institute of Oil and Oil Products Transportation (NII TNN), 9-5, 2 Verhniy Mikhaylovskiy proezd, 115419, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 66-74

The present article studies a procedure of calculating the strength of pipeline support constructions of the above-ground oil trunk pipeline system «Zapolyar'e — oil pumping station «Pur-pe». The calculations of the supports stress-strain state are performed with the use of computer complex Ansys v13, which applies the finite element method. The article provides a short description of the construction of fixed, linear-sliding and free-sliding supports of the oil pipeline of above-ground routing, developed for the installation in complex climatic and geologic conditions of the far north. According to the operation specification for design — the support constructions have to maintain the resistance power and bearing capacity under the influence of the pipeline stress without sagging and considering the possible sagging of the neighboring support. The support constructions represent space structures with a complex geometry. Together with the complex geometry, contacting elements are present in the construction of the supports. There is also an interaction of the pile foundation and the nonhomogeneous foundation. The enumerated peculiarities of the construction and operating conditions of the supports considerably complicate the strength calculations by engineering methods. The method of numerical modeling (finite element method) used in the article for the analysis of the supports’ operation under the stress is widely applied at the present time for calculations of space structures with a complex geometry. For the first time, while performing the supports’ strength calculations, the article considers the mutual deformation of the support, foundation grill and pile foundation in the ground, thus making it possible to consider real operation of the construction altogether. The main development stages of the calculation model “support — pile foundation — ground” in ANSYS, calculation and testing of the static strength of the support constructions are discussed in the article. The authors provide the calculation examples of the supports' stress-strain state for unfavorable combination of loads with maximum bending moment for a fixed support and maximum vertical force and maximum longitudinal-lateral displacement of the top part for a free-sliding support. The use of modern approaches to the operation modeling of the support constructions allows avoiding the excessive conservatism in estimating the stress-strain state of the supports and allows developing the construction optimal for metal intensity, while meeting the requirements for allowable stresses according to the actual normative documents.

DOI: 10.22227/1997-0935.2014.1.66-74

References
  1. Kazakevich M.I., Lyubin A.E. Proektirovanie metallicheskikh konstruktsiy nadzemnykh promyshlennykh truboprovodov [Metal Structures Design for Above-ground Industrial Pipelines]. 2nd Edition. Kiev, Budivel'nik Publ., 1989, 160 p.
  2. Petrov I.P., Spiridonov V.V. Nadzemnaya prokladka truboprovodov [Above-ground Pipelining]. Moscow, Nedra Publ., 1973, 472 p.
  3. Bykov L.I., Avtakhov Z.F. Otsenka vliyaniya usloviy na rabotu balochnykh truboprovodnykh sistem [Estimating the Conditions Influence on the Beam Pipelines Operation]. Izvestiya vuzov. Neft' i gaz [News of the Universities of Higher Education. Oil and Gas]. 2003, no. 5, pp. 79—85.
  4. Basov K.A. ANSYS: spravochnik pol'zovatelya [ANSYS. The User's Guide]. Moscow, DMK Press Publ., 2005, 640 p.
  5. Lawrence K.L. ANSYS Tutorial Release 13. Schroff Development Corporation, 2011.
  6. Seleznev V.E., Aleshin V.V., Pryalov S.N. Osnovy chislennogo modelirovaniya magistral'nykh truboprovodov [Intro to Numerical Simulations of Major Pipelines]. Moscow, KomKniga Publ., 2005, 496 p.
  7. Seleznev V.E., Aleshin V.V., Pryalov S.N. Matematicheskoe modelirovanie magistral'nykh truboprovodnykh sistem: dopolnitel'nye glavy [Mathematic Simulation of Major Pipelines Systems: Additional Chapters]. Moscow, MAKS Press Publ., 2009, 356 p.
  8. Lawrence K.L. ANSYS Workbench Tutorial, Structural&Thermal Analysis Using the ANSYS Workbench Release 13. Enviroment, Schroff Development Corporation, 2011.
  9. Crisfield M.A. Non-linear Finite Element Analysis of Solids and Structures. In two volumes. John Wiley & Sons, Chichester, 2000, 2 vols.
  10. Erdogan Madenci and Ibrahim Guven. The Finite Element Method and Applications in Engineering Using ANSYS, Springer, 2005, 686 p.
  11. Podgornyy A.N., Gontarovskiy P.P., Kirkach B.N. Zadachi kontaktnogo vzaimodeystviya elementov konstruktsiy [The Tasks of Contact Interaction of a Construction Elements]. Kiev, Naukova dumka Publ., 1989, 232 p.

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Resistance of i-beams in warping torsion with account for the development of plasticdeformations

  • Tusnin Aleksandr Romanovich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Chair, Department of Metal Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Prokic Milan - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Metal Structures, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 75-82

Torsion of thin-walled open-section beams due to restrained warping displacements of cross-section is causing additional stresses, which make a significant contribution to the total stress. Due to plastic deformation there are certain reserves of bearing capacity, identification of which is of significant practical interest. The existing normative documents for the design of steel structures in Russia do not include design factor taking into account the development of plastic deformation during warping torsion. The analysis of thin-walled open-section members with plastic deformation will more accurately determine their load-bearing capacity and requires further research. Reserves of the beams bearing capacity due to the development of plastic deformations are revealed when beams are influenced by bending, as well as tension and compression. The existing methodology of determining these reserves and the plastic shape factor in bending was reviewed. This has allowed understanding how it was possible to solve this problem for warping torsion members and outline possible ways of theoretical studies of the bearing capacity in warping torsion. The authors used theoretical approach in determining this factor for the symmetric I-section beam under the action of bimoment and gave recommendations for the design of torsion members including improved value of plastic shape factor.

DOI: 10.22227/1997-0935.2014.1.75-82

References
  1. Vlasov V.Z. Tonkostennye uprugie sterzhni [Thin-walled Elastic Beams]. Moscow, Fizmatgiz Publ., 1959, 568 p.
  2. Timoshenko S.P., Gere J.M. Theory of Elastic Stability. 2nd Ed. McGraw-Hill, New York, 1961, 541 p.
  3. Farwell Jr.C.R., Galambos T.V. Nonuniform Torsion of Steel Beams in Elastic Range. Journal of Structural Engineering, ASCE, 1969, vol. 95(12), pp. 2813—2829.
  4. Dinno K.S., Merchant W. A Procedure for Calculating the Plastic Collapse of I-sections under Bending and Torsion. The Structural Engineer. 1965, vol. 43(7), pp. 219—221.
  5. Pi Y.L., Trahair N.S. Inelastic Torsion of Steel I-beams. Research Report no. R679. The University of Sydney, 1993.
  6. Trahair N.S. Plastic Torsion Analysis of Monosymmetric and Point-symmetric Beams. Journal of Structural Engineering, ASCE. 1999, vol. 125, no. 2, pp. 175—182.
  7. Trahair N.S., Bradford M.A., Nethercot D.A., Gardner L. The Behaviour and Design of Steel Structure to EC3. 4th Ed. Taylor & Francis, New York, 2008, 490 p.
  8. Sokolovskiy V.V. Teoriya plastichnosti [Theory of Plasticity]. Moscow, Vysshaya Shkola Publ., 1969, 608 p.
  9. Belenya E.I. Metallicheskie konstruktsii [Metal Structures]. Moscow, Stroyizdat Publ., 1986, 560 p.
  10. Bychkov D.V. Stroitel'naya mekhanika sterzhnevykh tonkostennykh konstruktsiy [Structural Mechanics of Bar Thin-walled Systems]. Moscow, Gosstroyizdat Publ., 1962, 475 p.

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ENGINEERING RESEARCH AND EXAMINATIONOF BUILDINGS. SPECIAL-PURPOSE CONSTRUCTION

Quality of engineering surveysas a factor of natural-technogenic systems formation

  • Kashperyuk Pavel Ivanovich - Moscow State University of Civil Engineering (MGSU) Candidate of Geological and Mineralogical sciences, Associate Professor, Department of Engineering Geology and Geo- ecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Yulin Alexander Nikolaevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 83-89

Construction in urban areas is often related to reusing previously developed sites, which requires solving additional tasks both by builders and surveyors additional. The tasks are related to the evaluation of already changed natural (geological) environment of this area and its further investigation in connection with the proposed creation of a new natural-technogenic system (NTS). This article presents some examples of the influence of engineering survey quality on adopting extraordinary project solutions excluding the negative impact on NTS formation in the process of construction and operation of facilities in Moscow. In particular it is stated that the lack of control in the process of land works and transfer from the platform of water-bearing communications may ultimately lead to a different change in the strength and deformation properties of soil at the base of structures, and in some cases to geoecological disfuncion of the newly created NTS due to adverse geological processes development. The author draws attention to the complexity and responsibility of engineering geological surveys in the areas of developing powerful (>10 m) strata of bulk soils. The article considers some aspects of the influence of the temperature regime of soils in the foundation structures active zone on heat and moisture transfer in these soils, their condition and deformation properties in city area. A particular example of the construction of a high-rise building in Moscow has shown that the presence of heat-bearing communications within 3—10 m from the earth's surface may increase the annual average temperature of the strata up to 30 degrees and more, thus, dismantling such communications leads to different changes in the established temperature regime and conditions of clay soils. It is noted that the forecast of the change in basic physical and mechanical properties of the base soil in urban conditions is not possible without thermometric work during engineering-geological researches.

DOI: 10.22227/1997-0935.2014.1.83-89

References
  1. Vernadskiy V.I. Biosfera [Biosphere]. Moscow, Mysl' Publ., 1967, 412 p.
  2. Nesmeyanov S.A. Perspektivnye napravleniya inzhenernoy geotektoniki [Promising Directions of Engineering Geotectonics]. Moscow, Nauchnyy mir Publ., 2005, 304 p.
  3. Kashperyuk A.A., Kashperyuk P.I., Korshunova N.N. Osobennosti inzhenerno-geologicheskikh izyskaniy pri zastroyke gorodskikh kvartalov i krupnykh zagorodnykh territoriy [Geological Engineering Surveys before the Implementation of Construction Projects in Urban and Extensive Areas]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 2, pp. 64—72.
  4. Potapov I.A., Kalashnikov M.A., Kashperyuk P.I., Khomenko V.P. Osobennosti inzhenernoy zashchity vozdeystviy glavnoy sobornoy mecheti v g. Moskve v oslozhnennoy geoekologicheskoy obstanovke [Features of Engineering Protection of the Influences of the Central Jameh Mosque in Moscow in the Complicated Geoecological Environment]. Materialy 12-y Mezhdunarodnoy mezhvuzovskoy nauchno-prakticheskoy konferentsii molodykh uchenykh, doktorantov i aspirantov «Stroitel'stvo — formirovanie sredy zhiznedeyatel'nosti» 15-22.04.2009 [Materials of the 12th International Interuniversity Scientific and Practical Conference of Young Scientists, Doctoral and Postgraduate Students “Construction — Formation of Living Environment. 15—22.04.2009]. 2009, pp. 190—195.

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Reliable and adequateengineering surveys for construction: the rule of two D

  • Rakitina Natal'ya Nikolaevna - Mosgorgeotrest geologist, Geologic Supervi- sion Services, Mosgorgeotrest, 11 Leningradskiy Prospekt, Moscow, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Potapov Aleksandr Dmitrievich - Moscow State University of Civil Engineering (MGSU) Doctor of Technical Sciences, Professor, Head, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 90-97

In the article the current state of quality supply of engineering surveys for construction is discussed. The main criteria for improving the design quality of buildings and structures for industrial, civil and other purposes is the reliability and adequacy of the results of engineering-geological surveys. The authors show the examples of inadequate study of engineering-geological conditions in the design of structures that led to emergency situations. Consideration of the reasons of accidents in structures showed that they are caused by lack of research conducted, the underestimation of the complexity of geological conditions. In the process of conducting geotechnical investigations the works were focused directly in the enclosure of a designed building, and the features of geological and hydrogeological conditions of the off-site were much more complex. In the process of construction during the sinking of the pit activation suffusion processes occurred, which led to an accident. Underestimation of the use of these geological funds in this example shows that even in the presence of fund materials, which are currently almost not increased, errors may occur due to the notorious savings for research. The requirements to ensuring the reliability and adequacy of engineering-geological surveys, which the authors call "The Rule of two D" (in Russian — Reliability and Adequacy), lie in the existing legal acts. The practice of fulfilling requirements to a large extend shows that the desire to save money at the stage of design and exploration works results in additional costs for additional design, recovery from accidents and works on a new project. The authors critically evaluated the development of engineering and geotechnical engineering instead of geological survey, which is not methodologically and theoretically substantiated and leads to the excluding from engineering surveys the consideration of the off-site geotechnical conditions directly below the designed structure. The authors give the recommendations for improving the examination quality of the results of surveys and recommendations on obligatory increase of geological funds.

DOI: 10.22227/1997-0935.2014.1.90-97

References
  1. Osipov V.I., Medvedev O.P., editors. Moskva. Geologiya i gorod [Moscow. Geology and the City]. Moscow, Moskovskie uchebniki i kartolitografiya Publ., 1997, 400 p.
  2. Platov N.A., Potapov A.D., Lavrova N.A., Potapov I.A., Kalashnikov M.A. Inzhenernogeologicheskie izyskaniya v slozhnykh usloviyakh [Geotechnical Investigations in Complicated Conditions]. Moscow, MGSU Publ, 2011, 130 p.
  3. Bryukhan' A.F., Bryukhan' F.F., Potapov A.D. Inzhenerno-ekologicheskie izyskaniya dlya stroitel'stva TES [Engineering and Ecological Studies for the Construction of Thermal Power Plants]. Moscow, ASV Publ., 2008, 193 p.
  4. Potapov A.D. Geotekhnika, est' li povod dlya diskussii [Geotechnics, is There a Reason for Debate]. Inzhenernaya geologiya [Engineering Geology]. 2009, no. 11, pp. 15—19.
  5. Kashperyuk P.I., Potapov A.D. Predmet geotekhniki — osnovaniya sooruzheniy?! [Is the Base of Structures the Subject of Geotechnics?!]. Inzhenernaya geologiya [Engineering Geology]. 2010, no. 1, pp. 12—15.
  6. Kalashnikov M.A., Kashperyuk P.I., Potapov I.A., Khomenko V.P., Potapov A.D. K voprosu o neobkhodimosti modernizatsii normativnykh dokumentov po inzhenerno-geologicheskim izyskaniyam v rayonakh rasprostraneniya karstovykh i suffozionnykh protsessov [On the Question of the Need of Normative Documents Modernization on Engineering and Geological Surveys in the Areas of Karst and Suffusion Processes]. Inzhenernye izyskaniya [Engineering Surveys]. 2010, no. 10, pp. 8—10.
  7. Ziangirov R.S., Potapov A.D. Eshche raz o pravil'nom ponimanii terminov «geotekhnika» i «inzhenerno-geotekhnicheskie izyskaniya» [Once More on the Correct Definition of the Terms "Geotechnics" and "Engineering and Geotechnical Surveys]. Inzhenernye izyskaniya [Engineering Surveys]. 2012, no. 9, pp. 9—12.

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TECHNOLOGY OF CONSTRUCTION PROCEDURES. MECHANISMS AND EQUIPMENT

Ensuring high quality and efficiency of the worksin the process of constructing the tunnels of in-situ concrete

  • Ginzburg Aleksandr Vladimirovich - Scientific Production Association «Cosmos» (LLK «NPO «KOSMOS») Candidate of Technical Sciences, Vice-President for Regional Development, Scientific Production Association «Cosmos» (LLK «NPO «KOSMOS»), 38-25, Shosse Entuziastov, Moscow, 111123, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 98-110

In the article the author describes the importance of the technological regulations development in the process of constructing various transport constructions: tunnels, subways, bridges and other important objects. In the article the peculiarities of the tech- nological regulations development are fully taken into account; the dependence of the depth of their development and the quality of the concrete constructions, as well as the speed of the objects of transport infrastructure construction, including the examples of building the road tunnels in Moscow. The course of their development is shown with account for the main provisions, which should be included in technological regulations in order to ensure the most complete coverage of the issues arising in engineering, laboratory and Supervisory structure in the process of performing the works. The author proposes new effective materials and technologies of works. In particular, sufficient attention is paid to self-compacting concrete — a new type of concrete, which is able to flow and compact under its own weight, completely filling the formwork even in case of dense reinforcement, while maintaining the homogeneity and having no seals. The application experience of concrete self-sealing in the construction of the metro showed that labor costs for the concrete mixture sealing were 5-6 times reduced, and the speed of laying the concrete increased 2-3 times. When laying self-compacting concrete high-quality surfaces are formed, which do not require additional costs to bring them to the design parameters. In addition, the work shows the parameters of the technological processes and sets various types of works sequence: the article describes the features of formwork, placement and curing of the concrete in terms of year-round construction, shows the importance of thermo physical calculations of concrete hardening and the efficiency of using self-sealing concrete. Sufficient attention is also paid to the methods of quality assurance and to the methods of preventing cracking of various structural elements of a construction, as well as to the safety requirements and ensuring proper protection of the environment.

DOI: 10.22227/1997-0935.2014.1.98-110

References
  1. Solov'yanchik A.R., Pulyaev I.S. Osobennosti vozvedeniya v zimnikh usloviyakh zhelezobetonnykh konstruktivnykh elementov zdaniya akademii dzyudo v g. Zvenigorod Moskovskoy oblasti [Features of Constructing the Reinforced Concrete Elements of the Building of Judo Academy in Zvenigorod City of Moscow Region in Winter Conditions]. Beton i zhelezobeton. Oborudovanie, materialy, tekhnologii [Concrete and Reinforced Concrete. Equipment, Materials, Technologies]. 2011, no. 2(5), pp. 76—80.
  2. Shifrin S.A., Tkachev A.V. Teplovoe vzaimodeystvie tverdeyushchego betona i betonnogo osnovaniya v usloviyakh solnechnoy radiatsii [Thermal Interaction of Hardening Concrete and Concrete Base in the Conditions of Sun Radiation]. Sbornik trudov VNIIPITeploproekt [Collection of Works of Teploproekt]. Moscow, VNIIPITeploproekt Publ., 1985, pp. 19—27.
  3. Solov'yanchik A.R., Korotin V.N., Pulyaev I.S., Tret'yakova N.S. Opyt primeneniya samouplotnyayushchikhsy betonnykh smesey pri sooruzhenii mostov i tonneley [The Experience of Applying Self-compacting Concrete Mixtures in the Process of Constructing Bridges and Tonnels]. Alitinform. Mezhdunarodnoe analiticheskoe obozrenie. Tsement. Beton. Sukhie smesi [Alitinform. International Analytical Review. Cement. Concrete. Dry Mixtures]. 2012, no. 3 (25), pp. 8—18.
  4. Smirnov N.V., Antonov E.A. Rol' polzuchesti betona v formirovanii termonapryazhennogo sostoyaniya monolitnykh zhelezobetonnykh konstruktsiy v protsesse ee vozvedeniya [The Role of Concrete Creep in the Process of Forming the Thermal Strain State of Monolithic Reinforced Concrete Structures during the Building Process]. Sbornik trudov TsNIIS [Collection of Works of Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ., 2005, no. 233, pp. 89—117.
  5. Solov'yanchik A.R., Sychev A.P., Shifrin S.A. O vliyanii rasstoyaniya mezhdu postoyannymi temperaturno-deformatsionnymi shvami na treshchinoobrazovanie v konstruktivnykh elementakh Gagarinskogo tonnelya [On the Influence of the Distance Between Constant Expansion Joints on Crack Formation in Constructive Elements of Gagarinskiy Tunnel]. Dolgovechnost' stroitel'nykh konstruktsiy. Teoriya i praktika zashchity ot korrozii: materialy Mezhdunarodnoy konferentsii 7—9 oktyabrya 2002 goda [Durability of Building Structures. Theory and Practice of Corrosion Proofing. Materials of the International Conference, October 7—9, 2002]. Moscow, Tsentr ekonomiki i marketinga Publ., 2002, pp. 11—17.
  6. Schoeppel K., Plannerer M., Springenschmid R. Determination of Restraint Stresses and of Material Properties during Hydration of Concrete with the Temperature-stress Testing Machine. International RILEM Symposium. Munich, 1994, p. 153.
  7. Solovyanchik A.R., Krylov B.A., Malinsky E.N. Inherent Thermal Stress Distributions in Concrete Structures and Method for their Control. Thermal Cracking in Concrete at Early Ages. Proceedings of the International RILEM Symposium. Munich, 1994, no. 25, pp. 369—376.
  8. Solov'yanchik A.R., Shifrin S.A. Upravlenie termonapryazhennym sostoyaniem monolitnykh zhelezobetonnykh konstruktsiy pri skorostnom kruglogodichnom stroitel'stve transportnykh sooruzheniy [Control of Thermal Strain State of Monolithic Reinforced Concrete Structures in the Process of High Speed Year-round Construction of Transport Structures]. Sbornik trudov TsNIIS [Collection of Works of the Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ., 2000, no. 203, pp. 158—164.
  9. Thielen G., Hintzen W. Investigation of Concrete Behavior under Restraint with a Temperature-stress Test Machine. International RILEM Symposium. Munich, 1994, no. 25, pp. 142—152.
  10. Shifrin S.A. Uchet neritmichnosti tekhnologicheskikh protsessov pri vybore i obosnovanii rezhimov betonirovaniya raznomassivnykh konstruktsiy transportnykh sooruzheniy [Account for Irregularity of Technological Processes in the Process of Choosing and Reasoning the Modes of Concrete Pouring of the Structures of Transport Constructions with Different Masses]. Sbornik trudov TsNIIS [Collection of Works of Scientific and Research Institute of Transport Construction]. Moscow, TsNIIS Publ, 2003, no. 217, pp. 206—216.

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RESEARCH OF BUILDING MATERIALS

Thermogravimetric analysis of phase transitions in cement compositions mixed by sodium silicate solution

  • Fedosov Sergey Viktorovich - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Scienc- es, Professor, member, Russian Academy of Architectural and Building Sciences (RAASN), President, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Akulova Marina Vladimirovna - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, Professor, counselor, Russian Academy of Architectural and Building Sciences (RAASN), head, Department of Con- struction Materials Science, Special Technologies and Technological Facilities department, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Slizneva Tatyana Evgenyevna - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, Associate Professor, Department of Higher and Applied Mathematics, Statistics and Information Technologies, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Potemkina O.V. - Ivanovo State Polytechnic University (IVGPU) Doctor of Technical Sciences, doctoral student, Ivanovo State Polytechnic University (IVGPU), office 305, 20 8-th Marta street, Ivanovo, 153037, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 111-118

This paper presents a study of the capability to modify cement by mechanical activation of sodium silicate water solution. Admixtures or blends of binding agents were employed for modifying concrete properties. The liquid glass is applied to protect from chemically or physically unfavorable environmental impacts, such as acidic medium and high temperature. The sodium silicate is a high-capacity setting accelerator. The increasing of the liquid glass proportion in the mix leads to the degradation of the cement paste plasticity and for this reason it is necessary to reduce the amount of liquid glass in the cement paste. The activation of dilute water solution of sodium silicate into rotary pulsating apparatus directly before tempering of the cement paste is an effective way to decrease mass fraction of liquid glass in the cement paste. The results of the combined influence of liquid glass and mechanical activation on physicochemical processes taking place in cement stone are represented in this research. Thermogravimetric analysis was used in order to study cement blends. Thermogravimetric analysis of modified cement stone assays was performed by thermo analyzer SETARAM TGA 92-24. The results of the analysis of phase transition taking place under high-temperature heating of cement stone modified by the mechanical activation of the water solution of the sodium silicate were introduced. Thermograms of cement stone assays were obtained at different hardening age. The comparison of these thermograms allows us to come to a conclusion on the formation and the retention during long time of a more dense structure of the composite matrix mixed by the mechanical activation of sodium silicate water solution. The relation between the concrete composition and its strength properties was stated. Perhaps, the capability of modified concrete to keep calcium ions in sparingly soluble hydrosilicates leads to the increase in its durability and corrosion resistance.

DOI: 10.22227/1997-0935.2014.1.111-118

References
  1. Amjad Tariq, Ernest K. Yanful. A Review of Binders Used in Cemented Paste Tailings for Underground and Surface Disposal Practices // Jour. of Environmental Management. 2013, vol. 131, no. 12, pp. 138—149.
  2. Korneev V.I., Danilov V.V. Rastvorimoe i zhidkoe steklo [The Soluble and Liquid Glass]. Sankt-Petersburg, Stroyizdat Publ., 1996, 216 p.
  3. Brykov A.S. Aqueous Jellies in the K2O-SiO2-H2O System and their Use in Technology of Fire-resistant Glass. Glass Processing Days 2007: Conference Proceedings Book. Tampere, pp. 350—351.
  4. Mikhaylenko N.Yu., Klimenko N.N., Sarkisov P.D. Stroitel'nye materialy na zhidkostekol'nom svyazuyushchem. Chast' 1. Zhidkoe steklo kak svyazuyushchee v proizvodstve stroitel'nykh materialov [Construction Materials on Liquid Glass Binder. Part 1. Liquid Glass as a Binder in Construction Materials Production]. Tekhnika i tekhnologiya silikatov [Technologies of Silicates]. 2012, vol. 19, no. 2, pp. 25—28.
  5. Shestakov S. Study the Possibility of Non-parametric Amplification Multibubble Cavitation. Applied Physics. Vol. 6, pp. 18—24.
  6. Promtov M.A. Perspektivy primeneniya kavitatsionnykh tekhnologiy dlya intensifikatsii khimiko-tekhnologicheskikh protsessov [Prospects of Using Cavitating Technologies in order to Intensify Chemical and Technological Processes]. Vestnik TGTU [Proceedings of Tver State Technical University]. 2008, vol. 14, no. 4, pp. 861—869.
  7. Vorob'ev Yu.V. Osnovy teorii mekhanoaktivatsii zhidkikh sred [Fundamentals of the Theory of Mechanical Activation of Liquid Medium]. Vestnik TGTU [Proceedings of Tver State Technical University]. 2013, vol. 19, no. 3, pp. 608—613.
  8. Akulova M.V., Strel'nikov A.N., Slizneva T.E., Padokhin V.A., Bazanov A.V. Mekhanoimpul'snaya aktivatsiya zhidkofaznykh funktsional'nykh dobavok v tsementy i betony [Mechanic and Impulsive Activation of Liquid-phase Functional Additives in Cements and Concretes]. Aktual'nye problemy sovremennogo stroitel'stva: materialy Mezhdunarodnoy nauchno-prakticheskoy konferentsii [Current Problems of Contemporary Construction: Materials of International Scientific and Practical Conference]. Penza, PGUAS Publ., 2011, pp. 5—8.
  9. Topor N.D., Ogorodova L.P., Mel'chakova L.V. Termicheskiy analiz mineralov i neorganicheskikh soedineniy [Thermal Analysis of Minerals and Inorganic Compounds]. Moscow, MGU Publ., 1987, 190 p.
  10. Ramachandran V.S., Paroli R.M., Beaudoin J.J., Delgado A.H. Handbook of Thermal Analysis of Construction Materials. Noyes Publications William Andrew Publishing, 2002, 692 p.
  11. Brown M.E. Introduction to Thermal Analysis. Techniques and Applications. 2-nd ed., Kluwer Academic Publishers, Dordrecht, 2001, 264 p.
  12. Fedosov S.V., Akulova M.V., Slizneva T.E., Akhmadulina Yu.S., Padokhin V.A., Bazanov A.V. Svoystva tsementnykh kompozitov na mekhanoaktivirovannom rastvore silikata natriya [Properties of Cement Composites by the Mechanoactivation of Solution of the Sodium Silicate]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 1, pp. 57—62.

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SAFETY OF BUILDING SYSTEMS. ECOLOGICAL PROBLEMS OF CONSTRUCTION PROJECTS. GEOECOLOGY

The aspects of fire safety at landfills

  • Aleshina Tat'yana Anatol'evna - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sci- ences, Associate Professor, Department of Engineering Geology and Geoecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 119-124

Starting with 2008 and till 2013 there have been alarm messages about fires occurring at landfill places in Russia. Landfill fires are especially dangerous as they emit dangerous fumes from the combustion of the wide range of materials within the landfill. Subsurface landfill fires, unlike typical fires, cannot be put out with water. The article includes the analysis of the sources and causes of conflagrations at landfills. There maintains the necessity to eliminate the reasons, which cause the fires. There are quantification indices of environmental, social and economic effects of fires at landfills all over Russia. Surface fires generally burn at relatively low temperatures and are characterized by the emission of dense white smoke and the products of incomplete combustion. The smoke includes irritating agents, such as organic acids and other compounds. Higher temperature fires can cause the breakdown of volatile compounds, which emit dense black smoke. Surface fires are classified as either accidental or deliberate. For the ecologic security there is a need in the execution of proper hygienic requirements to the content of the places as well as international recommendations. In addition to the burning and explosion hazards posed by landfill fires, smoke and other by-products of landfill fires also present a health risk to firefighters and others exposed to them. Smoke from landfill fires generally contains particulate matter (the products of incomplete combustion of the fuel source), which can aggravate pre-existing pulmo- nary conditions or cause respiratory distress and damage ecosystem. The monitoring of conducting preventive inflamings and transition to alternative, environment friendly methods of waste disposal is needed.

DOI: 10.22227/1997-0935.2014.1.119-124

References
  1. Kontseptsiya dolgosrochnogo sotsial'no-ekonomicheskogo razvitiya Rossiyskoy Federatsii na period do 2020 goda ot 17 noyabrya 2008 g. ¹ 1662-r. S. 2 [Concept of Long-term Social and Economic Development for the Period till 2020 from November 17, 2008, no. 1662-r. P. 2.]. Konsul'tant-Plyus. Available at: http://base.consultant.ru. Date of access: 12.11.2013.
  2. Strategiya sotsial'no-ekonomicheskogo razvitiya Moskovskoy oblasti. Ministerstvo ekonomiki Moskovskoy oblasti, 4 avgusta 2012 g. Administratsiya gorodskogo okruga Reutov [Strategy of Socio-Economic Development of Moscow Region. Ministry of Economy of the Moscow Region, August 4, 2012. Regional Government of Reutov]. Available at: http://www.reutov.net. Date of access: 12.11.2013.
  3. SP 2.1.7.1038—01. Gigienicheskie trebovaniya k ustroystvu i soderzhaniyu poligonov dlya tverdykh bytovykh otkhodov [Regulations 2.1.7.1038—01. Sanitary Requirements to Arrangement and Maintenance of Solid Domestic Waste at Landfills].
  4. V Podmoskov'e gorit svalka bytovykh otkhodov. 20 avgusta 2010 g. [A Landfill Burns In Moscow Region. August 20, 2010]. RIA Novosti. Available at: http://ria.ru/. Date of access: 12.11.2013.
  5. Ryabov Yu.V. Razrabotka universal'noy metodiki rascheta ekologicheskogo riska vozniknoveniya pozhara na nesanktsionirovannykh svalkakh [Development of Universal Methods for Calculating Environmental Risk at Unauthorized Landfills]. Saint Petersburg, Sankt-Peterburgskiy nauchno-issledovatel'skiy tsentr ekologicheskoy bezopasnosti RAN Publ., 2011, p. 3.
  6. Gulyashchikh V. Musor s ogon'kom. 17 iyunya 2013 g. [Rubbish with Fire. June 17, 2013]. Aktual'no.ru. Available at: http://aktualno.ru. Date of Access: 12.11.2013.
  7. Easterlin R.A., Angelescu L. Modern Economic Growth and Quality of Life: Cross Sectional and Time Series Evidence. Forthcoming in K. C. Land (Ed.), Handbook of Social Indicators and Quality-of-Life Research. New York and London, Springer, 2011.
  8. Aleshina T.A. Nekotorye aspekty negativnogo vozdeystviya svalok tverdykh bytovykh otkhodov Moskovskoy oblasti [Some Aspects of the Negative Impacts of Solid Household Waste Landfills in Moscow Region]. Internet-vestnik VolgGASU. Seriya: Politematicheskaya [Internet Proceedings of Volgograd State University of Architecture and Civil Engineering. Polythematic Series]. 2012, no. 3(23). Available at: vestnik.vgasu.ru.
  9. Anopchenko T.Yu. Podkhody k otsenke ekologo-ekonomicheskogo riska [Approaches to Ecological and Economic Risks Estimation]. Ekonomicheskiy vestnik Yuzhnogo Federal'nogo okruga [Economic Proceedings of Southern Federal District]. 2006, no. 4.
  10. Chura N.N. O terminologii i osnovnykh ponyatiyakh bezopasnosti (na primere stat'i Yayli E.A. «Kontseptsiya riska dlya upravleniya urovnem ekologicheskoy bezopasnosti na urbanizirovannykh territoriyakh», opublikovannoy v zhurnale «Bezopasnost' zhiznedeyatel'nosti». 2009, ¹ 5) [On Terminology and Basic Concepts of Security (on the Example of the Article Yayli E.A. "Risk Concepts for Controlling the Level of Environmental Security on Urbanized Territories", Published in the Journal Life Safety. 2009, no.5]. Bezopasnost' zhiznedeyatel'nosti [Life Safety]. 2009, no. 10, pp. 46—48.

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Defining regulatory requirements for water supply systems in Vietnam

  • Deryushev Leonid Georgiyevich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associated Professor, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pham Ha Hai - Moscow State University of Civil Engineering (MGSU) postgraduate student, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Deryusheva Nadezhda Leonidovna - Moscow State University of Civil Engineering (MGSU) ostgraduate student, Department of Water Disposal and Aquatic Ecology, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 125-132

In the article the authors offer their suggestions for improving the reliability of the standardization requirements for water supply facilities in Vietnam, as an analog of building regulations of Russia 31.13330.2012. In Russia and other advanced countries the reliability of the designed water supply systems is usual to assess quantitatively. Guidelines on the reliability assessment of water supply systems and facilities have been offered by many researchers, but these proposals are not officially approved. Some methods for assessing the reliability of water supply facilities are informally used in practice when describing their quality. These evaluation methods are simple and useful. However, the given estimations defy common sense and regulatory requirements used by all the organizations, ministries and departments, for example, of Russia, in the process of allowances for restoration and repair of water supply facilities. Inadequacy of the water supply facilities assessment is shown on the example of assessing the reliability of pipeline system. If we take MTBF of specific length of the pipeline as reliability index for a pipeline system, for example, 5 km, a pipeline of the similar gauge, material and working conditions with the length of 5 m, according to the estimation on the basis of non-official approach, must have a value of MTBF 1000 times greater than with the length of 5 km. This conclusion runs counter to common sense, for the reason that all the pipes in the area of 5 km are identical, have the same load and rate of wear (corrosion, fouling, deformation, etc.). It was theoretically and practically proved that products of the same type in the same operating conditions (excluding determined impact of a person), work as an entity, which MTBF is equal to the average lifetime. It is proposed to take the average service life as a reliability indicator of a pipeline. Durability, but not failsafety of the pipe guarantees pipeline functioning. It is proved that not a specific pipeline length should be taken for an element of a pipeline system, but the repair area, which is in two sides limited by isolation valve and is completely disconnected for the time of recovery or any other need.

DOI: 10.22227/1997-0935.2014.1.125-132

References
  1. Regulations 31.13330.2012. Vodosnabzhenie. Naruzhnye seti i sooruzheniya «Aktualizirovannaya redaktsiya SNiP 2.04.02—84» (utv. Prikazom Minregiona Rossii ot 29.12.2011 ¹ 635/14) [Water Supply. External Supply Lines and Constructions “Revised Edition of Construction Regulations 2.04.02—84” (Approved by the Directive of the Ministry of Regional Development of Russia 29.12.2011 ¹ 635/14]. Moscow, 2012.
  2. Regulations 32.13330.2012. Kanalizatsiya. Naruzhnye seti i sooruzheniya. «Aktualizirovannaya redaktsiya SNiP 2.04.03—85» (utv. Prikazom Minregiona Rossii ot 29.12.2011 ¹ 635/11) [Conduit. External Supply Lines and Constructions “Revised Edition of Construction Regulations 2.04.02—85” (Approved by the Directive of the Ministry of Regional Development of Russia 29.12.2011 ¹ 635/11). Moscow, 2012.
  3. RF Government Regulation from 16.02.2008 # 87 (Edition from 08.08.2013) «O sostave razdelov proektnoy dokumentatsii i trebovaniyakh k ikh soderzhaniyu» (s izmeneniyami i dopolneniyami, vstupayushchimi v silu s 01.01.2014) [On the Composition of the Chapters of Planning Documentation and Requirements to their Content].
  4. TCVN Vietnam 33—2006. Water Supply — Distribution System and Facilities — Design Standard.
  5. GOST 27.002—89. Nadezhnost' v tekhnike. Terminy i opredeleniya [All Union State Standard 27.002—89. Reliability of Technology. Terms and Definitions]. Moscow, 1989.
  6. GOST R 53480—2009. Nadezhnost' v tekhnike. Terminy i opredeleniya [All Union State Standard R 53480—2009. Reliability of Technology. Terms and Definitions]. Moscow, 2009.
  7. GOST 27.003—83. Vybor i normirovanie pokazateley nadezhnosti [All Union State Standard 27.003—83. Choice and Standardization of Reliability Index]. Moscow, 2009.
  8. Methodical Guidelines 3-69. Metodika vybora nomenklatury normiruemykh pokazateley nadezhnosti tekhnicheskikh ustroystv [Choice Procedure of the List of Standardized Reliability Index of Technical Devices]. Moscow, 1970.
  9. Gnedenko B.V., Belyaev Yu.K., Solov'ev A.D. Matematicheskie metody v teorii nadezhnosti [Mathematical Methods in the Reliability Theory]. Moscow, Nauka Publ., 1965.
  10. Barlou R., Proshan F. Matematicheskaya teoriya nadezhnosti [Mathematical Reliability Theory]. Moscow, Sovetskoe radio Publ., 1969, pp. 36—37.
  11. Skotnikov Yu.A. Statistika povrezhdeniy vodoprovodnykh setey [Statistics of Water Supply Systems Damages]. Problemy nadezhnosti sistem vodosnabzheniya: Tezisy dokladov Vsesoyuznoy konferentsii po nadezhnosti sistem vodosnabzheniya [Problems of Water Supply Systems Reliability: Reports of All-Union Conference on Water Supply Systems Reliability]. Moscow, 1973, pp. 53—60.
  12. Normy amortizatsionnykh otchisleniy na polnoe vosstanovlenie osnovnykh fondov narodnogo khozyaystva SSSR: Postanovlenie Soveta Ministrov SSSR 22.10.1990 g. ¹ 1072 [Norms of Amortization on Full Recovery of the Main Funds of National Economy of the USSR from 22.10.1990 ¹ 1072]. Available at: http://www.consultant.ru/document/cons_doc_LAW_1927/?frame=2. Date of access: 15.11.2013.
  13. ASTM D2992—96. Standard Practice for Obtaining Hydrostatic or Pressure Design Basis for Fiberglass (Glass-Fiber-Reinforced Thermosetting-Resin) Pipe and Fittings. Available at: http://www.astm.org/DATABASE.CART/HISTORICAL/D2992-96E1.htm. Date of access: 20.11.2013.
  14. Abramov N.N. Nadezhnost' sistem vodosnabzheniya [Reliability of Water Supply Systems]. Moscow, Stroyizdat Publ., 1979.
  15. Deryushev L.G., Minaev A.V. Otsenka nadezhnosti sistem vodosnabzheniya [Reliability Estimation of Water Supply Systems]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 1988, no. 11, pp. 4—5.
  16. Deryushev L.G. Pokazateli nadezhnosti truboprovodnykh sistem vodosnabzheniya i vodootvedeniya [Reliability Index of Water Supply and Water Disposal Systems]. Vodosnabzhenie i sanitarnaya tekhnika [Water Supply and Sanitary Engineering]. 2000, no. 12, pp. 6—9.
  17. Herz R.K. Protsess stareniya i neobkhodimost' vosstanovleniya vodoprovodnykh setey [Ageing Processes and Rehabilitation Needs of Drinking Water Distribution Networks]. AKVA Publ., 1996, no. 9, pp. 6—8.
  18. Haviland R.P. Inzhenernaya nadezhnost' i raschet na dolgovechnost' [Engineering Reliability and Long Life Design]. Moscow, Energiya Publ., 1966.

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Efficient methods of piping cleaning

  • Orlov Vladimir Aleksandrovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Technical Sciences, Professor, Head of the Department of Water Supply and Waste Water Treatment, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Nechitaeva Valentina Anatol'evna - Moscow State University of Civil Engineering (MGSU) Associate Professor, Department of Water Sup- ply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Bogomolova Irina Olegovna - Moscow State University of Civil Engineering (MGSU) Assistant, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Shaykhetdinova Yuliya Aleksandrovna - Moscow State University of Civil Engineering (MGSU) student, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Daminova Yuliya Farikhovna - Moscow State University of Civil Engineering (MGSU) student, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 133-138

The article contains the analysis of the efficient methods of piping cleaning of water supply and sanitation systems. Special attention is paid to the ice cleaning method, in course of which biological foil and various mineral and organic deposits are removed due to the ice crust buildup on the inner surface of water supply and drainage pipes. These impurities are responsible for the deterioration of the organoleptic properties of the transported drinking water or narrowing cross-section of drainage pipes. The co-authors emphasize that the use of ice compared to other methods of pipe cleaning has a number of advantages due to the relative simplicity and cheapness of the process, economical efficiency and lack of environmental risk. The equipment for performing ice cleaning is presented, its technological options, terms of cleansing operations, as well as the volumes of disposed pollution per unit length of the water supply and drainage pipelines. It is noted that ice cleaning requires careful planning in the process of cooking ice and in the process of its supply in the pipe. There are specific requirements to its quality. In particular, when you clean drinking water system the ice applied should be hygienically clean and meet sanitary requirements.In pilot projects, in particular, quantitative and qualitative analysis of sediments ad- sorbed by ice is conducted, as well as temperature and the duration of the process. The degree of pollution of the pipeline was estimated by the volume of the remote sediment on 1 km of pipeline. Cleaning pipelines using ice can be considered one of the methods of trenchless technologies, being a significant alternative to traditional methods of cleaning the pipes. The method can be applied in urban pipeline systems of drinking water supply for the diameters of 100—600 mm, and also to diversion collectors. In the world today 450 km of pipelines are subject to ice cleaning method.Ice cleaning method is simple, quick, effective, economical and environmentally safe compared to other methods, allowing to remove the growths of biofilms and other pollution and maintain the hydraulic performance of pipeline operation at the expense of drawing on the internal surface of pipes of ice crust.

DOI: 10.22227/1997-0935.2014.1.133-138

References
  1. Khramenkov S.V. Strategiya modernizatsii vodoprovodnoy seti [The Modernization Strategy of Water Supply Systems]. Moscow, Stroyizdat Publ., 2005, 398 p.
  2. Kuliczkowski A., Kuliczkowska E., Zwierzchowska A. Technologie beswykopowe w inzeynierii srodowiska. Wydawnictwo Seidel-Przywecki Sp. Kielce, 2010, 735 p.
  3. Pinguet J.-F., Meynardie G. Reseaux d'assainissement: du diagnostic a la rehabilitation. Eau, Industry, Nuisances. 2006, no. 295, pp. 39—43.
  4. Zwierzchowska A. Technologie bezwykopowej budowy sieci gazowych, wodociagowych i kanalizacyjnych. Politechnika swietokrzyska. Kielce, 2006, 180 p.
  5. Rameil M. Handbook of Pipe Bursting Practice. Vulkan verlag. Essen, 2007, 351 p.
  6. Orlov V.A., Meshkova N.I. Ul'trazvukovaya sistema Piglet. Vnutrenniy osmotr i prochistka truboprovodov [Ultrasound System Piglet. Internal Inspection and Cleaning of Pipelines]. Tekhnologii Mira [Technologies of the World]. 2012, no. 5, pp. 43—44.
  7. Stephenson M. Ice Pigging — a NO-DIG Technique for Cleaning Pressurized Pipes. NO-DIG 2013, Sydney (Australia). Available at: www.nodigdownunder.com. Date of access: 19.11.2013.
  8. Khramenkov S.V., Orlov V.A., Khar'kin V.A. Optimizatsiya vosstanovleniya vodootvodyashchikh setey [Restoration Optimization of Gravity Systems]. Moscow, Stroyizdat Publ., 2002, pp. 160.
  9. Santiago A., Durango M. Most Advanced Technology for Pipeline Inspection in the World: See, Measure and Navigate in 3D through Pipes and Manholes. NO-DIG 2012, Sao Paulo (Brasil). Available at: www.nodigsaupaulo2012.com. Date of access: 22.02.2013.
  10. Orlov V.A., Orlov E.V., Zverev P.V. Tekhnologii mestnogo bestransheynogo remonta vodootvodyashchikh truboprovodov [Technologies for Sectional Trenchless Repair of Water Discharge Pipelines]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2013, no. 7, pp. 86—95.

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Features of internal water supply and water disposal of shopping centers

  • Orlov Evgeniy Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Scienc- es, Associate Professor, Department of Water Supply, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 139-145

Pipeline from an external system should be inlet in the part of the building where a large number of water folding devices will be concentrated. As a rule, for shopping cen- ters with a lot of water consumers it is necessary to make not less than three inputs, each of them should be connected to different areas of an external ring water supply system in order to make the work of the system more reliable.The places for water folding fittings in shopping centers are the following. The water folding devices: mixers are placed in sanitary cabins of shopping centers. Usually, for for water saving in buildings with a big pass-through capacity per hour it is reasonable to use contactless mixers, which are turned on upon raising a hand with a help of motion sensor or light sensor. Another important argument in favor of such mixers is prevention of infections spread for the reason that the consumer doesn't touch the device, so, the risk of bacteria transmission via the device decreases. Such mixer supplies water with a demanded expense and temperature. As a rule, water for such mixers moves from the centralized internal water supply system of hot water, mixing up with cold water. If there is no centralized hot water supply system, it is possible to use hot water storage heaters in case of a small number of visitors or to reject mixers at all in favor of the cranes giving water of only one temperature (cold), which is also practiced.For the branch of economic and household the water receivers are used, which are present in sanitary cabins in most cases by toilet bowls, wash basins, urinals.

DOI: 10.22227/1997-0935.2014.1.139-145

References
  1. Shonina N.A. Vodosnabzhenie i vodootvedenie v usloviyakh kraynego severa [Water Supply and Water Disposal in the Far North]. Santekhnika [Sanitary Engineering]. 2012, no. 5, pp. 32—44.
  2. Brodach M.M. Zelenoe vodosnabzhenie i vodootvedenie [Green Water Supply and Water Disposal]. Santekhnika [Sanitary Engineering]. 2009, no. 4, pp. 6—10.
  3. Orlov E.V. Vodo- i resursosberezhenie. Zhilye zdaniya kottedzhnykh i dachnykh poselkov [Water and Rresource-saving. Residential Buildings of Cottage and Housing Estates]. Tekhnologii mira [Technologies of the World]. 2012, no. 10, pp. 35—41.
  4. Isaev V.N. Sotsial'no-ekonomicheskie aspekty vodosnabzheniya i vodootvedeniya [Social and Economic Aspects of Water supply and Water Disposal]. Santekhnika [Sanitary Engineering]. 2007, no. 1, pp. 8—17.
  5. Naumov A.L., Brodach M.M. Resursosberezhenie v sistemakh vodosnabzheniya i vodootvedeniya [Resource-saving in Water Supply and Water Disposal Systems]. Santekhnika [Sanitary Engineering]. 2012, no. 1, pp. 14—20.
  6. Isaev V.N., Chukhin V.A., Gerasimenko A.V. Resursosberezhenie v sisteme khozyaystvenno-pit'evogo vodoprovoda [Resource-saving in the System of Utility and Drinking Water Supply]. Santekhnika [Sanitary Engineering]. 2011, no, 3, pp. 14—17.
  7. Brodach M.M. Ot vodosberezheniya k zdaniyu s nulevym vodopotrebleniem [From Water Savings to a Building with Zero Water Consumption]. Santekhnika [Sanitary Engineering]. 2010, no. 6, pp. 32—37.
  8. Shonina N.A. Osobennosti proektirovaniya sistem vodosnabzheniya i kanalizatsii maloetazhnykh zdaniy [Design Features of Water supply and Sewerage Systems of Low-rise Buildings]. Santekhnika [Sanitary Engineering]. 2010, no. 3, pp. 56—58.
  9. Peter-Varbanets M., Zurbr?gg C., Swartz C., Pronk W. Decentralized Systems for Potable Water and the Potential of Membrane Technology. Water Research. 2009, vol. 43, no. 2, pp. 245—265.
  10. Tabunshchikov Yu.A., Naumov A.L., Miller Yu.V. Kriterii energoeffektivnosti v «zelenom» stroitel'stve [Criteria of Enerfy Efficiency in “Green” Engineering]. Energosberezhenie [Energy Saving]. 2012, no. 1, pp. 23—26.
  11. Pugachev E.A., Isaev V.N. Effektivnoe ispol'zovanie vody [Efficient Use of Water]. Moscow, ASV Publ., 2012, 432 p.

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Probability and statistical correlation of the climatic parameters for estimatingenergy consumption of a building

  • Samarin Oleg Dmitrievich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Assistant Professor, Department of the Heating and Ventilation, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoye shosse, Moscow, 129337, Russian Federa- tion; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 146-152

The problem of the most accurate estimation of energy consumption by ventilation and air conditioning systems in buildings is a high-priority task now because of the decrease of energy and fuel sources and because of the revision of building standards in Russian Federation. That’s why it is very important to find simple but accurate enough correlations of the climatic parameters in heating and cooling seasons of a year.Therefore the probabilistic and statistical relationship of the parameters of external climate in warm and cold seasons are considered. The climatic curves for cold and warm seasons in Moscow showing the most probable combinations between the external air temperature and the relative air humidity are plotted using the data from the Design Guidelines to the State Building Code “Building Climatology”. The statistical relationship of the enthalpy and the external air temperature for climatic conditions of Moscow are determined using these climatic curves and formulas connecting relative air humidity and other parameters of the air moisture degree.The mean value of the external air enthalpy for the heating season is calculated in order to simplify the determination of full heat consumption of ventilating and air conditioning systems taking into account the real mean state of external air. The field of ap- plication and the estimation of accuracy and standard deviation for the presented dependences are found. The obtained model contains the only independent parameter namely the external air temperature and therefore it can be easily used in engineering practice especially during preliminary calculation.

DOI: 10.22227/1997-0935.2014.1.146-152

References
  1. Gagarin V.G., Kozlov V.V. Trebovaniya k teplozashchite i energeticheskoy effektivnosti v proyekte aktualizirovannogo SNiP “Teplovaya zashchita zdaniy” [The Requirements to the Thermal Performance and Energy Efficiency in the Project of Actualized State Building Code «Thermal Performance of the Buildings»]. Zhilishchnoye stroitel’stvo [House Construction]. 2011, no. 8, pp. 2—6.
  2. Gagarin V.G., Kozlov V.V. O trebovaniyakh k teplozashchite i energeticheskoy effektivnosti v proyekte aktualizirovannoy redaktsii SNiP “Teplovaya zashchita zdaniy” [On the Requirements to the Thermal Performance and Energy Efficiency in the Project of Actualized State Building Code «Thermal Performance of the Buildings»]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 7, pp. 59—66.
  3. Gagarin V.G. Makroekonomicheskiye aspekty obosnovaniya energosberegayushchikh meropriyatiy pri povyshenii teplozashchity ograzhdayushchikh konstruktsiy zdaniy [The Macroeconomic Factors of Energy Saving Measures Justification in Case of Increasing the Thermal Performance of Building Enclosures]. Stroitel’nye materialy [Construction Materials]. 2010, no. 3, pp. 8—16.
  4. ?liogerien? J., Kaklauskas A., Zavadskas E.K., Bivainis J., Seniut M. Environment Factors of Energy Companies and their Effect on Value: Analysis Model and Applied Method. Technological and Economic Development of Economy. 2009, vol. 15, no. 3, pp. 490—521.
  5. Uzsilaityte L., Martinaitis V. Impact of the Implementation of Energy Saving Measures on the Life Cycle Energy Consumption of the Building. Paper of the conference of VGTU. 2008, vol. 2, pp. 875—881.
  6. Wang J., Zhai Z., Jing Y., Zhang Ch. Influence Analysis of Building Types and Climate Zones on Energetic, Economic and Environmental Performances of BCHP Systems. Applied Energy. 2011, vol. 88, no. 9, pp. 3097—3112.
  7. Samarin O.D. Integral’nye kharakteristiki otopitel’nogo perioda [Integral Characteristics of the Heating Season]. SOK [Sanitary Engineering, Heating and Air Conditioning]. 2010, no. 2, pp. 38—40.
  8. Samarin O.D., Matveyeva E.G. Opredeleniye parametrov okhladitel’nogo perioda [Determination of the Parameters of the Cooling Season]. SOK [Sanitary Engineering, Heating and Air Conditioning], 2013, no. 1, pp. 120—122.
  9. Bulgakov S.N., Bondarenko V.M., Kuvshinov Yu.Ya. and oth. Teoriya zdaniya. T. 1. Zdanie — obolochka [Theory of a Building. Vol. 1. Building — Envelope]. Moscow, ASV Publ., 2007, 280 p.
  10. Savin V.K., editor. Stroitel’naya klimatologiya: Spravochnoye posobiye k SNiP 23-01—99* [Building Climatology: Design Guideline to State Building Code 23-01—99*]. Moscow, NIISF Publ., 2006, 250 p.

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HYDRAULICS. ENGINEERING HYDROLOGY. HYDRAULIC ENGINEERING

Safety assessment of a bored pile diaphragm in a medium-height dam

  • Sainov Mikhail Petrovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Department of Hydraulic Engineering, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Kotov Filipp Viktorovich - Moscow State University of Civil Engineering (MGSU) assistant, Department of Hydraulic Engineering, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 153-163

The article deals with the analysis of embankment dams of a new type: a rockfill dam with a clay-cement concrete diaphragm built by bored-pile method. The authors give the results of numerical modeling of a stress-strain state of 69 m high dam, where a diaphragm in the form of a slurry trench cutoff wall cuts the whole dam body and a23 m deep gravel-pebble foundation. The co-authors describe a dam design where the diaphragm is constructed in three lifts. The diaphragm lifts are connected by slabs made of clay-cement concrete or clay. Numerical modeling was carried out with the use of the author’s computer program with consideration of non-linearity of soils deformation. Analyses showed that clay-cement concrete of a slurry trench cutoff wall is in a favorable stress state, as clay-cement concrete by its deformation characteristics (E = 100 МPа) is close to gravel-pebble soil. The diaphragm deflections turned to be small; therefore, tensile stresses will not occur in it. In the diaphragm the clay-cement concrete is in a state of triaxial compression, therefore, its strength will be higher than unconfined compression strength (1-2 МPа). It may be expected that its strength will be provided. The nodes of connection of the slurry trench cutoff wall lifts also demonstrate safe operation.

DOI: 10.22227/1997-0935.2014.1.153-163

References
  1. Radchenko V.G., Lopatina M.G., Nikolaychuk E.V., Radchenko S.V. Opyt vozvedeniya protivofil'tratsionnykh ustroystv iz gruntotsementnykh smesey [Experience of Building Geomembrane Liners of Soil-cement Mixtures]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 2012, no. 12, pp. 46—54.
  2. Ganichev I.A., Meshcheryakov A.N., Kheyfets V.B. Novye sposoby ustroystva protivofil'tratsionnykh zaves [New Ways of Producing Ground Water Cutoffs]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 1961, no. 2, pp. 14—18.
  3. Tsoy M.S.-D., Aldanov A.G., Radchenko V.G., Semenov Yu.D., Danilov A.S., Smolenkov V.Yu. Vozvedenie protivofil'tratsionnoy zavesy metodom struynoy tsementatsii v osnovanii plotiny Sangtudinskoy GES-1 [Building Ground Water Cutoff by Jet Grouting in the Dam Foundation of Sangtudinskaya Water Power Plant]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 2008, no. 5, pp. 32—37.
  4. Baranov A.E. Iz opyta proektirovaniya i stroitel'stva Yumaguzinskogo gidrouzla na reke Beloy [The Experience of Designing and Building Yumaguzinskiy Hydroelectric Complex on the River Belaya]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2006, no. 2, pp. 112—122.
  5. Vaughan P.R., Kluth D.J., Leonard M.W., Pradoura H.H.M. Cracking and Erosion of the Rolled Clay Core of Balderhead Dam and the Remedial Works Adopted for its Repair. Transactions of 10th International Congress on Large Dams. Montreal, 1970, vol. 1, pp. 73—93.
  6. Bellport B.P. Bureau of Reclamation Experience in Stabilizing Embankment of Fontenelle Earth Dam. Transactions of 9th International Congress on Large Dams. Istanbul, 1967, pp. 67—79.
  7. Malyshev L.I., Rasskazov L.N. Sostoyanie plotiny Kureyskoy GES i tekhnicheskie resheniya po ee remontu [Dam State of Kureyskaya Water Power Plant and Technical Solutions for its Repair]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 1999, no. 1, pp. 31—36.
  8. Malyshev L.I., Shishov I.N., Kudrin K.P., Bardyugov V.G. Tekhnicheskie resheniya i rezul'taty rabot po sooruzheniyu protivofil'tratsionnoy steny v grunte v yadre i osnovanii Kureyskoy GES [Technical Solutions and Working Results in the Process of Building Filtration-proof Wall in the Soil of the Core and Foundation of Kureyskaya Water Power Plant]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 2001, no. 3, pp. 31—36.
  9. Lorenz W., List F. Application of the Trench Diaphragm Method in Constructing the Impervious Core of Dams Consisting in Part of the Low-grade Fill Material. Transactions of 12th International Congress on Large Dams. 1976, Mexico, pp. 93—104.
  10. Strobl T., Shmid R. Wadi Hawashinah Dam. Oman. Ground Water Recharge Dam to Stop Salt Water Instrusion. Strabag. Dam Engineering in Kenya, Nigeria, Oman and Turkey. Cologne, April 1997, no. 52, pp. 67—68.
  11. Korolev V.M., Smirnov O.E., Argal E.S., Radzinskiy A.V. Novoe v sozdanii protivofil'tratsionnogo elementa v tele gruntovoy plotiny [New in Creating Filtration-proof Element in the Body of Ground Water Dam]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 2013, no. 8, pp. 2—9.
  12. Rasskazov L.N., Bestuzheva A.S., Sainov M.P. Betonnaya diafragma kak element rekonstruktsii gruntovoy plotiny [Concrete Membrane as an Element of Ground Water Dam Reconstruction]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 1999, no. 4, pp. 10—16.
  13. Sainov M.P. Napryazhenno-deformirovannoe sostoyanie protivofil'tratsionnykh «sten v grunte» gruntovykh plotin. Avtoreferat. dissertatsii kandidata tekhnicheskikh nauk [Stress-Strain State of “Slurry Trench Cutoff Walls” of Ground Water Dams. Thesis Abstract of a Candidate of Technical Sciences]. Moscow, 2001.
  14. Rasskazov L.N., Dzhkha Dzh. Deformiruemost' i prochnost' grunta pri raschete vysokikh gruntovykh plotin [Soil Deformability and Strength in the Process of Calculating High Ground Water Dams]. Gidrotekhnicheskoe stroitel'stvo [Hydraulic Engineering]. 1987, no. 7, pp. 31—36.
  15. Sainov M.P. Osobennosti chislennogo modelirovaniya napryazhenno-deformirovannogo sostoyaniya gruntovykh plotin s tonkimi protivofil'tratsionnymi elementami [Features of Stress-strain State Numerical Modeling of Ground Water Dams with Thin Filtration-proof Elements]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 10, pp. 102—108.
  16. Marsal Marsal R.J. Large Scale Testing of Rockfill Materials. Journal of the Soil Mechanics and Foundations Division. 1967, vol. 93, no. 2, pp. 27—43.

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ECONOMICS, MANAGEMENT AND ORGANIZATION OF CONSTRUCTION PROCESSES

Cluster-forming factors and tools to overcome negative conditions of regionalhousing policy implementation

  • Zhul'kova Yuliya Nikolaevna - Nizhny Novgorod State University of Architecture and Civil Engineering (NNGASU) Candidate of Economic Scienc- es, Associate Professor, Department of Real Estate, Investments, Consulting and Analysis, Nizhny Novgorod State University of Architecture and Civil Engineering (NNGASU), 65 Il'inskaya St., Nizhny Novgorod, 603950, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 164-174

The society in its development periodically faces the problem of insufficiently intense social and economic development, stagnation in industrial production and changes of consumer demand for various goods and services including the construction products. Current conditions dictate the need for the development and use of mechanisms enhancing the socio-economic well-being of the population growth in some regions and the Russian society as a whole.On choosing ways of development special attention should be paid to providing synergy of the combination of economic sectors resources, significantly determining the socio-economic well-being of the population. The comparative analysis of the socio-economic development is a tool of identifying and restraining the negative and constraint factors for subsequent adjustments and development of measures to reduce their role or liquidate them in order to solve the housing problem, the most severe for vulnerable groups, as well as members of the middle class.In this regard, a new approach to the implementation of housing policies basing on the principle of cluster was proposed. Clustering provides joining of efforts of main economic sectors (public, real, social and financial) to overcome the negative conditions of the housing policy and combines technological connection of the development of residential real estate with the finance and credit support for cluster initiatives.This is a systematic approach to overcome the negative factors and the creation of qualitative and quantitative acceleration of processes of housing construction, which determines the methodological suitability of using cluster mechanism to implement housing policy, which at the moment doesn’t show significant achievements in providing citizens with affordable housing.Using this concept of interaction of economic sectors will allow determining the di- rection of cluster initiatives development in the subjects of federal districts on the basis of their benefits and the degree of socio-economic development; trends of development of housing taking into account regional characteristics; and developing the tools of financial and credit policies to improve housing affordability as a key factor for socio-economic development of the Russian society.

DOI: 10.22227/1997-0935.2014.1.164-174

References
  1. Ismailov M.I. Ekonomiko-sotsial'nye aspekty i perspektivy regional'noy zhilishchnoy politiki Rostovskoy oblasti [Social and Economic Aspects and Prospects of Regional Housing Policy of the Rostov Region]. Terra Economicus. 2008, vol. 6, no. 4—2, pp. 329—331.
  2. Vasin S.M., Tkachenko I.V., Popova I.V. Problemy realizatsii regional'noy politiki maloetazhnogo zhilishchnogo stroitel'stva v regionakh [The Problems of Implementing Regional Policy of Low-rise Housing Construction in Regions]. Izvestiya Penzenskogo gosudarstvennogo pedagogicheskogo universiteta im. V.G. Belinskogo [Bulletin of Penza State Pedagogical University Named after V.G. Belinsky]. 2012, no. 28, pp. 281—287.
  3. Kovaleva L.M. Problemy realizatsii gosudarstvennoy zhilishchnoy politiki v Bryanskoy oblasti i perspektivy ikh resheniya [The Problems of Implementing State Housing Policy in the Bryansk Region and the Prospects of their Solution]. Vestnik Bryanskogo gosudarstvennogo universiteta [Vestnik of Bryansk State University]. 2011, no. 3, pp. 93—96.
  4. Smirnova O.P. Primenenie sistemnogo podkhoda k formirovaniyu osnovnykh napravleniy zhilishchnoy politiki regiona regiona [Using System Approach to Forming the Main Directions of Region Housing Policy]. Problemy ekonomiki, finansov i upravleniya proizvodstvom: sbornik nauchnykh trudov vuzov Rossii [Collected Scientific Works of the Universities of Russia " Problems of Economics, Finance and Production Management"]. 2011, no. 30, pp. 49—53.
  5. Regiony Rossii. Sotsial'no-ekonomicheskie pokazateli. 2012. Statisticheskiy sbornik [Regions of Russia. Social and Economic Data. 2012. Statistical Digest]. Available at: http://www.gks.ru/wps/wcm/connect/ rosstat_main/rosstat/ru/materials/news/doc_1268735691578. Date of access: 20.06.2013.
  6. Artashina I.A., Zhul'kova Yu.N., Krutova N.Yu. Klasternyy mekhanizm realizatsii zhilishchnoy politiki regiona: monografiya [Cluster Mechanism of Regional Housing Policy Implementation: Monography]. N. Novgorod, NIMB Publ., 2013, 291 p.
  7. Mirskoy V.P. Finansovye mekhanizmy realizatsii gosudarstvennoy zhilishchnoy politiki [Financial Mechanisms of Housing Policy Implementation]. Vestnik Moskovskogo gosudarstvennogo oblastnogo universiteta. Seriya: Ekonomika [Proceedings of Moscow State Regional University. Series: Economics]. 2010, no. 3, pp. 26—35.
  8. Shelikhova E.V., Gladkaya E.D. Mekhanizmy finansovogo obespecheniya kontseptsii zhilishchnogo stroitel'stva [Mechanisms of Financial Support of the Housing Construction Concept]. Ekonomika stroitel'stva i gorodskogo khozyaystva [Economics of Construction and Municipal Services]. 2007, vol. 3, no. 3, pp. 121—126.
  9. Hoek-Smit M.C., Diamond D.B. The Design and Implementation of Subsidies for Housing Finance. Prepared for the World Bank Seminar on Housing Finance. 2003, March, 10—13.
  10. Aaron H.J. Rational for a Housing Policy. Federal Housing Policies and Programs. Ed. by J.P. Mitchell. New Brunswick, N.Y., Center for Urban Policy Research, 1995.
  11. Sabirdzhanov F.R. Zarubezhnyy opyt finansovogo obespecheniya zhilishchnoy politiki [Foreign Experience of Housing Policy Financial Support]. Vestnik Saratovskogo gosudarstvennogo sotsial'no-ekonomicheskogo universiteta [Proceedings of Saratov State Social and Economic University]. 2011, no. 4, pp. 127—131.
  12. Zalkind L.O. Voprosy zhilishchnoy politiki na mestnom urovne [The Issues of the Housing Policy at the Local Level]. Ekonomicheskie i sotsial'nye peremeny: fakty, tendentsii, prognoz [Economical and Social Changes: Facts, Tendencies, Forecast]. 2010, no. 1, pp. 92—98.
  13. Nepomnyashchiy A.M. Osobennosti realizatsii zhilishchnoy politiki gosudarstva na munitsipal'nom urovne [Features of Housing Policy Implementation of a State at the Municipal Level]. Gosudarstvennoe i munitsipal'noe upravlenie: uchenye zapiski SKAGS [State and Municipal Management. Memoirs SKAGS]. 2013, no. 1, pp. 32—39. 2013.
  14. Krygina A.M. Perspektivy razvitiya regional'noy sotsial'noy zhilishchnoy politiki [The Prospects of Regional Social Housing Policy Development]. Fundamental'nye issledovaniya [Fundamental Research]. 2013, no. 4, part 4, pp. 812—817.
  15. Kolomeytseva M.A. Zhilishchnaya obespechennost' kak odin iz osnovnykh faktorov uluchsheniya kachestva zhizni naseleniya [Housing as One of the Main Factors of Improving the Life Quality of the Population]. Sotsial'no-ekonomicheskie yavleniya i protsessy [Social and Economic Phenomena and Processes]. 2010, no. 6, pp. 83—86.
  16. Morozova T.I. Issledovanie regional'noy struktury rynkov zhil'ya v Privolzhskom federal'nom okruge [Analysis of the Regional Structure of Real Estate Market in Privolzhsky Federal District]. Regional'naya ekonomika: teoriya i praktika [Regional Economy: Theory and Practice]. 2012, no. 2, pp. 56—60.

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Efficiency potential of management and technical solutions for a construction object

  • Lapidus Azariy Abramovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Professor, Doctor of Engineering, Chair, Department of Technology and Management of the Construction, Honored Builder of the Russian Federation, Recipient of the Prize of the Russian Federation Government in the field of Science and Technology, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 175-180

The authors investigate the models of efficiency potential of management and technical solutions for a construction object, which allows accounting for the influence of management-technological and administrative solutions in the process of implementing construction project. The solutions are represented by various factors – solitary integral potentials. The factors, which should be taken into account in the process of developing an integral model, are: development of general contracting structure, project decisions, management decisions, administrative decisions and ecological impact. In is necessary to develop the model, which will integrally put together the above mentioned factors of a construction project, observe and investigate other factors, create a model and get the opportunity not only to predict the endpoint of the future construction object on the stage of formulating technological requirements, but also to monitor the changes of this prognosis in time. The parameters of the integral potential will allow the system to obtain flexibility, which makes it possible to adjust to the changes usually taking place on a con- struction object and at the same time to aim for optimization of organizational, technological and administrative solutions in the process of reaching endpoint of construction.

DOI: 10.22227/1997-0935.2014.1.175-180

References
  1. Lapidus A.A., Demidov L.P. Issledovaniya integral'nogo pokazatelya kachestva, uchityvayushchego vliyanie organizatsionno-tekhnologicheskikh resheniy pri formirovanii stroitel'noy ploshchadki [Investigation of the Integral Quality Parameter, which Takes into Account the Influence of Organizational and Technological Solutions in the Process of Developing Construction Site]. Tekhnologiya i organizatsiya stroitel'nogo proizvodstva [Technology and Management of Construction Operations]. 2013, no. 3, pp. 44—46.
  2. Lapidus A.A., Berezhnyy A.Yu. Matematicheskaya model' otsenki obobshchennogo pokazatelya ekologicheskoy nagruzki pri vozvedenii stroitel'nogo ob"ekta [Mathematical Estimation Model for a Composite Index of Environmental Impact in the Process of Construction]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2012, no. 3, pp. 149—153.
  3. Lapidus A.A., Saydaev Kh.L-A. Vliyanie parametrov formirovaniya organizatsionnoy struktury stroitel'noy kompanii na obobshchennyy pokazatel' ekologicheskoy nagruzki [Influence of the Parameters of a Construction Company Development on a Composite Index of Environmental Impact]. Tekhnologiya i organizatsiya stroitel'nogo proizvodstva [Technology and Management of the Construction Operations]. 2012, no. 1, pp. 50—52.
  4. Orlov K.O. Kompleksnyy pokazatel' rezul'tativnosti proektov massovoy maloetazhnoy zastroyki pri ispol'zovanii razlichnykh sovremennykh tekhnologiy modul'nogo domostroeniya [Complex Performance Indicator of the Mass Low-rise Building Development Projects Using Various Modern Technologies of Modular Housing]. Tekhnologiya i organizatsiya stroitel'nogo proizvodstva [Technology and Management of the Construction Operations]. 2013, no. 1, pp. 40—42.
  5. Gusakov A.A. Sistemotekhnika stroitel'stva [System Techniques of the Construction]. Moscow, ASV Publ., 2004.
  6. Marugin V.M., Azgal'dov G.G. Kvalimetricheskaya ekspertiza stroitel'nykh ob"ektov [Qualimetric Inspection of Construction Objects]. Saint Petersburg, Politekhnika Publ., 2008, 527 p.

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INFORMATION SYSTEMS AND LOGISTICS IN CIVIL ENGINEERING

Compulsion of a linear equation system to the development of analytic formulas for the sumsof some finite series with the help of special computer programming

  • Lenev Vladimir Stepanovitch - Moscow State University of Civil Engineering (MGSU) Candidate of Physical and Math- ematical Sciences, Associate Professor, Department of Higher Mathematics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 181-186

The article presents a convincing system of mathematical reasoning allowing us to pass over the stages of recurrent formulas as well as the induction methods in the pro- cess of developing analytic formulas using computer programs. The article elaborates the ideas on how to make the computer derive analytic formulas. The author offers us a generalization consisting in using the method of summing up to the more wide range of series, as well as finding approximate specific solutions to some differential equations and summarizations, which can occur, for example, in finite element method. The suggested method of summing the degrees with the coefficient is generalized to:a) The total formulas for the powers degrees of real numbers which are not the rational numbers. This will lead to approximate results.b) The representation of sums is connected to the solutions of certain differential equations (Cauchy problem), where we can obtain the partial equations in the form of power series with rational coefficients.

DOI: 10.22227/1997-0935.2014.1.181-186

References
  1. Vladimir Lenev. One of the Methods of How to Make the Computer Derive Analytic Formulas. 14th International Conference on Computing in Civil and Building Engineering. Moscow, June 27—28, 2012, pp. 168—170.
  2. Lenev V.S. Vyvod formul, vyrazhayushchikh tochno summu nekotorykh konechnykh ryadov s pomoshch'yu EVM [The Development of the Formulas Precisely Expressing Some Finite Series Sums with the help of ECM]. Voprosy prikladnoy matematiki i vychislitel'noy mekhaniki: sbornik nauchnykh trudov [The Collection of Scientific Works: Issues of Applied Mathematics and Computational Mechanics]. Moscow, MGSU Publ., 2000, no. 3, pp. 105—108.
  3. Lenev V.S. Metod polucheniya s pomoshch'yu EVM klassicheskikh formul dlya ischisleniya konechnykh summ nekotorykh chislovykh ryadov s ispol'zovaniem programmy resheniya v ratsional'nykh chislakh sistemy lineynykh uravneniy razmernosti nxn [Computer-Aided Method for Obtaining Classical Formulas for Numerical Series Sums Using Programs in Rational Numbers in Linear Equation System with the Dimension nxn]. Fundamental'nye nauki v sovremennom stroitel'stve: sbornik dokladov 3-ya nauchno-prakticheskaya konferentsiya [The Collection of Papers (3rd Scientific Conference): Fundamental Sciences in Presentday Construction]. Moscow, 2004, pp. 3—9.
  4. Brown W.S., Hearn A.C. Applications of Symbolic Algebraic Computation. Computer Physic Communications. 1979, vol. 17, no. 1—2, pp. 207—215.
  5. Kheming R.V. Chislovye metody [Numerical Methods]. Moscow, Nauka Publ., 1970.
  6. Akimov P.A., Zolotov A.B., Shirinskiy V.I. Metody tochnogo analiticheskogo resheniya mnogotochechnykh kraevykh zadach stroitel'noy mekhaniki [Methods of Accurate Analytical Solution of Multipoint Boundary Value Problems in Structural Mechanics]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2006, no. 3, pp. 29—39.
  7. Akimov P.A., Mozgaleva M.L. Korrektnye algoritmy mnogourovnevoy approksimatsii s ispol'zovaniem diskretnogo bazisa Khaara chast' 2: dvumernyy sluchay [Correct Algorithms of Multilevel Approximation Using Discrete Basis of Haar Part 2: Two Dimensional Case]. International Journal for Computational Civil and Structural Engineering. 2012, vol. 8, no. 2, pp. 40—46.
  8. Munro N., Tsapekis P. Some Recent Results Using Symbolic Algebra. IEE International Conference on Control 94.1994.
  9. Cohen J.S. Computer Algebra and Symbolic Computation: Elementary Algorithms. AKPeters, LTD, 2002, 323 p.
  10. Alefeld G., Rohn J., Rump S.M., Yamamoto T. (Eds). Symbolic Algebraic Methods and Verification Methods. Springer, 2001, 266 p.
  11. Grandshteyn N.S., Ryzhik I.M. Tablitsa integralov, summ, ryadov i proizvedeniy [Table of Integrals, Sums, Series and Products]. Moscow, Nauka Publ., 1971.

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Computer modeling for investigating the stress-strainstate of beams with hybrid reinforcement

  • Rakhmonov Ahmadzhon Dzhamoliddinovich - Volga State University of Technology (PGTU) postgraduate student, Department of Building Structures and Footings, Volga State University of Technology (PGTU), 3 Lenin sq., Yoshkar-Ola, 424000, Republic of Mari El, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Solovʹov Nikolai Pavlovich - Volga State University of Technology (PGTU) Candidate of Technical Sciences, Senior Lecturer, De- partment of Building Structures and Footings, Volga State University of Technology (PGTU), 3 Lenin sq., Yoshkar-Ola, 424000, Republic of Mari El, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Pozdeev Viktor Mikhailovich - Volga State University of Technology (PGTU) Candidate of Technical Sciences, Chair, Department of Building Structures and Footings, Volga State University of Technology (PGTU), 3 Lenin sq., Yoshkar-Ola, 424000, Republic of Mari El, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 187-195

In this article the operation of a continuous double-span beam with hybrid reinforcement, steel and composite reinforcement under the action of concentrated forces is considered. The nature of stress-strain state of structures is investigated with the help of computer modeling using a three-dimensional model. Five models of beams with different characteristics were studied. According to the results of numerical studies the data on the distribution of stresses and displacements in continuous beams was provided. The dependence of the stress-strain state on increasing the percentage of the top re- inforcement (composite) of fittings and change in the concrete class is determined and presented in the article. Currently, the interest in the use of composite reinforcement as a working reinforcement of concrete structures in Russia has increased significantly, which is reflected in the increase of the number of scientific and practical publications devoted to the study of the properties and use of composite materials in construction, as well as emerging draft documents for design of such structures. One of the proposals for basalt reinforcement application is to use it in bending elements with combined reinforcement. For theoretical justification of the proposed nature of reinforcement and improvement of the calculation method the authors conduct a study of stress-strain state of continuous beams with the use of modern computing systems. The software program LIRA is most often used compared to other programs representing strain-stress state analysis of concrete structures.

DOI: 10.22227/1997-0935.2014.1.187-195

References
  1. Stepanova V.F., Stepanov F.Yu. Nemetallicheskaya kompozitnaya armatura dlya betonnykh konstruktsiy [Non-metallic Composite Reinforcement for Concrete Structures]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2013, no. 1, pp. 45—47.
  2. Zyuzin R.S. Konstruktivnye osobennosti armirovaniya betonnykh konstruktsiy korrozionnostoykoy nemetallicheskoy kompozitnoy armatury [Design Features of Concrete Structures Reinforcement Using Corrosion Resistant Nonmetallic Composite Reinforcement]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 2009, no. 5, pp. 9—11.
  3. Kiba I. Vtoroe rozhdenie kompozitnoy armatury [The Second Birth of Composite Reinforcement]. Stroitel'nye materialy, oborudovanie, tekhnologii XXI veka [Building Materials, Equipment, Technologies of the 21st Century]. 2013, no. 8 (175), pp. 28—29.
  4. Madatiyan S.A. Perspektivy razvitiya stal'noy i nemetallicheskoy armatury zhelezobetonnykh konstruktsiy [Prospects of the Development of Steel and Non-metallic Reinforcing of Concrete Structures]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2002, no. 9, pp. 16—19.
  5. Rakhmonov A.D., Solov'ev N.P. Predlozheniya po primeneniyu kompozitnoy armatury v karkasakh zdaniy [Proposals on Composite Reinforcement Application in the Framework of Buildings]. Vestnik SiBADI [Proceedings of Siberian State Automobile and Highway Academy]. 2013, no. 5, pp. 69—74.
  6. Rakhmonov A.D., Solov'ev N.P. Patent RF 134965, MPK E04S 3/20 U1. Balka monolitnogo zhelezobetonnogo mezhduetazhnogo perekrytiya. Zayavitel' i patentoobladatel' Povolzhskiy gosudarstvennyy tekhnologicheskiy universitett. Zayav. 03.06.2013, opubl. 27.11.2013, Byul. ¹ 1 [RF Patent 134965, IPC E04S 3/20 U1. Monolithic Reinforced Concrete Beam of Floor Structure. Applicant and patentee Volga State University of Technology. Appl. 03.06.2013, published 27.11.2013, Bulletin no. 1]. 2 p.
  7. Zaikin V.G., Valuyskikh V.P. Regulirovanie usiliy v nerazreznykh konstruktsiyakh v sostave kompleksnogo rascheta PK LIRA [Regulation of Strains in Continuous Structures as Part of Complex Calculation Using Software LIRA]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 2011, no. 6, no. 13—15.
  8. Zaikin V.G. Primenenie metoda avtomatizirovannogo pereraspredeleniya usiliy komp'yuternogo rascheta dlya monolitnykh plit perekrytiy bezrigel'nogo karkasa [Application of the Method of Computer Aided Redistribution of Computer Calculation Efforts for Monolithic Floor Slabs of the Frame without Collar Beams]. Beton i zhelezobeton [Concrete and Reinforced Concrete]. 2013, no. 3, pp. 25—28.
  9. Rakhmonov A.D., Solov'ev N.P. Vliyanie kombinirovannogo armirovaniya na napryazhenno-deformirovannoe sostoyanie izgibaemykh zhelezobetonnykh elementov [Combined Influence of Reinforcement on Stress-strain State of Bending Reinforced Concrete Elements]. Trudy Povolzhskogo gosudarstvennogo tekhnologicheskogo universiteta: Ezhegodnaya nauchno-tekhnicheskaya konferentsiya professorskogo sostava, doktorantov, aspirantov i sotrudnikov PGTU [Works of the Volga State Technological University: Annual Scientific and Technical Conference of PGTU Professors, Doctoral Students, Postgraduate Students and Staff]. Yoshkar-Ola, 2013, pp. 271—276.
  10. Jankowaik I., Madaj A. Numerical Modelling of the Composite Concrete — Steel Beam Inter—layer Bond. 8th Conference of Composite Structures. Zielona Gora, 2008. pp. 131—148.
  11. Floros D., Ingason O.A. Modeling and Simulation of Reinforced Concrete Beams. Chalmers University of Technology, Sweden, 2013, 78 p.
  12. Belakhdar K. Nonlinear Finite Element Analysis of Reinforced Concrete Slab Strengthened With Shear Bolts. Jordan Journal of Civil Engineering. 2008, vol. 2, no 1, pp. 32—44.

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Logistic description of investment and construction management

  • Sborshchikov Sergey Borisovich - Moscow State University of Civil Engineering (National Research University) (MGSU) Doctor of Economic Sciences, Professor, acting chair, Department of Technology, Organization and Management in the Construction, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Lazareva Natal'ya Valer'evna - Moscow State University of Civil Engineering (MGSU) assistant, Department of Organization Technology and Management in Construction, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 196-201

The article is devoted to the questions of defining dynamic behavior of investment and construction activity as a technical and economic system and its formalized description. It is offered to use the term "condition vector" as one of the main characteristics while describing investment and construction activity. Logistic interpretation of a sustainable development of investment and construction defines the concept of optimum trajectory, which considers various dependencies of its components (construction operations, their preparation, design, material, technique, personnel, information, investment, etc.). It is necessary to point out that this state is homeostatic, which means, the managing system must provide continuous monitoring of each system component of investment and construction activities in accordance with the sustainable development pathway. The concept of dynamic balance used in logistics is identical to the concept of homeostatic balance, which is accepted in system engineering. It is defined as a property of technical and economic system, which implies that its deviations from the development pathway lie within admissible values.

DOI: 10.22227/1997-0935.2014.1.196-201

References
  1. Sborshchikov S.B. Teoreticheskie zakonomernosti i osobennosti organizatsii vozdeystviy na investitsionno-stroitel'nuyu deyatel'nost' [Theoretical Patterns and Characteristics of the Impacts Organization on Investment and Construction Activity]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 4, pp.183—187.
  2. Zharov Ya.V. Uchet organizatsionnykh aspektov pri planirovanii stroitel'nogo proizvodstva v energetike [Accounting for the Organizational Aspects in the Process of Planning Building Operations in the Power Industry]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2013, no. 5, pp. 69—71.
  3. Sborshchikov S.B. Teoreticheskie osnovy formirovaniya novykh organizatsionnykh skhem realizatsii investitsionno-stroitel'nykh proektov v energeticheskom sektore na osnove integratsii printsipov inzhiniringa i logistiki [The Theoretical Basis of the Formation of New Organizational Schemes in Investment and Construction Projects in the Energy Sector Basing on the Integration of Engineering and Logistics Principles]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, no. 1, pp. 146—150.
  4. Pobegaylov O. A., Shemchuk A.V. Sovremennye informatsionnye sistemy planirovaniya v stroitel'stve [Modern Information Systems of Planning in Construction]. Inzhenernyy vestnik Dona [Engineering Proceedings of Don]. 2012, no. 2, pp. 20—25.
  5. Song Y., Chua D.K.H. Modeling of Functional Construction Requirements for Constructability Analysis. Journal of Construction Engineering and Management. 2006, vol. 132, no. 12, pp.1314—1326.
  6. Aleksanin A.V. Kontseptsiya upravleniya stroitel'nykh otkhodov na baze kompleksnykh i informatsionnykh logisticheskikh tsentrov [The Concept of Construction Waste Management on the Basis of Complex and Informational Logistics Centers]. Nauchnoe obozrenie [Scientific Review]. 2013, no. 7, pp. 132—136.
  7. Shevchenko V.S. Osobennosti upravleniya i motivatsii personala v usloviyakh innovatsionnoy deyatel'nosti stroitel'nogo predpriyatiya [Features of Staff Management and Motivation in Case of Innovation Activity in a Building Enterprise]. Novyy universitet. Seriya: ekonomika i pravo [New University. Series: Economics and Law]. 2012, no.12, pp. 39—42.
  8. A. Georges L. Romme, Endenburg G. Design: Construction Principles and Design Rules in the Case of Circular Design. Organization Science. 2006, March/April, vol. 17, no. 2, pp. 287—297.
  9. May R.C., Puffer S.M., McCarthy D.J. Transferring Management Knowledge to Russia: a Culturally Based Approach. Academy of Management. 2009, vol. 19, no. 2, pp. 24—35.
  10. Dossick C.S., Neff G. Messy Talk and Clean Technology: Communication, Problemsolving and Collaboration Using Building Information Modelling. Engineering Project Organization Journal. 2011, vol. 1, no. 2, ðð. 83—93. Online publication date: 1.07.2011.

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ENGINEERING GEOMETRY AND COMPUTER GRAPHICS

Using AutoCAD to improve the visibility of the organizational technological design

  • Lebedeva Irina Mikhailovna - Moscow State University of Civil Engineering (MGSU) Assistant Professor, Department of Descriptive Geometry and Graphics, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 202-208

The article describes the issue of increasing the visibility of technological solutions in organizational-technological design. The ability to visualize the main stages of building process technology contributes to organic integration of all the requirements. A special role for the harmonious perception is played by correct display of the lighting facilities, shadowing. Realistic shadows help to analyze the rooms’ insolation of the designed fa- cility and the surrounding areas. We give a justification for the use of AutoCAD in order to automate the process of visualizing the results of organizational-technological design. The author describes the methods of obtaining realistic natural lighting in AutoCAD without significantly increasing the complexity of the process. Engineering companies in 46 % of cases use the software AutoCAD in order to create construction plans. AutoCAD has a variety of possibilities and is constantly evolving. Continuation is one of the benefits of this program. AutoCAD is unique in terms of customization, because, apart from instruction languages, it has two built-in programming languages: AutoLISP and VisualBasic. Because of these specific features AutoCAD allows to create any applications related to graphics implementation. Constant monitoring of lightning changes allows finding the appropriate in terms of aesthetics, ergonomics and insolation decisions on planning and associating a building or structure to the environment. Solar lighting is simulated by a combination of several directional lightning point sources. The author offers a brief description of the program algorithm, which allows automatically managing lighting settings and creating a file with a realistic visualization of the design solutions.

DOI: 10.22227/1997-0935.2014.1.202-208

References
  1. Lapidus A.A., Telichenko V.I. Informatsionnoe modelirovanie tekhnologiy i biznesprotsessov v stroitel'stve: monografiya [Information Modeling of Technology and Business Processes in Construction. Monograph]. Moscow, ASV Publ., 2008.
  2. Kolesnikova E.B., Sinenko S.A. Tekhnologiya virtual'noy real'nosti v otobrazhenii stroitel'nogo general'nogo plana pri vozvedenii ob"ekta [Technology of Virtual Reality in Presentation of General Lay-out in the Process of Building an Object]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2012, no. 11, pp. 44—46.
  3. Lebedeva I.M., Sinenko S.A. Problemy realisticheskoy vizualizatsii organizatsionnotekhnologicheskikh resheniy v srede AutoCAD [The Problems of Realistic Visualization of the Organizational and Technological Solutions in AutoCAD]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2011, no. 8, vol. 2, pp. 451—458.
  4. Lebedeva I.M., Sinenko S.A. Algoritm programmy vizualizatsii proektnykh resheniy v srede AUTOCAD [Algorithm of Visualization Software of Design Decisions in AUTOCAD]. Tekhnologiya i organizatsiya stroitel'nogo proizvodstva [Technology and Organization of Construction Industry]. 2012, no. 1(1), pp. 43—46.
  5. Poleshchuk N.N. AutoCAD Razrabotka prilozheniy, nastroyka i adaptatsiya [AutoCAD: Application Development, Customization and Adaptation]. Saint Petersburg, BKhV-Peterburg Publ., 2006.
  6. Klimacheva T.N. Trekhmernaya komp'yuternaya grafika i avtomatizatsiya proektirovaniya na VBA v AutoCAD [3D Computer Graphics and Computer-aided Design on VBA in AutoCAD]. Moscow, Press, 2008, 464 p.
  7. Zatsepin P.M. Avtomatizirovannaya sistema proektirovaniya kontrolya ob"ektov stroitel'stva [Automated System of Control of Construction Projects Designing]. Promyshlennoe i grazhdanskoe stroitel'stvo [Industrial and Civil Engineering]. 2009, no. 6, pp. 60.
  8. Pedersen Mathias. Tekhnologiya i metody osveshcheniya [Technology and Lighting Techniques]. Available at: http://b3d.mezon.ru/index.php/Chapter_11.1:_Lighting_Discussion. Date of access: 03.04.2012.
  9. Rogers D., Adams J. Matematicheskie osnovy mashinnoy grafiki [Mathematical Background of Computer Graphics]. 2nd ed. Moscow, Mir Publ., 2001.

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PROBLEMS OF HIGHER EDUCATION IN CIVIL ENGINEERING

Creative technologies of the initial stages of architectural education

  • Semeshkina Tat'yana Vladimirovna - International Slav Institute (MSI) Vice-dean, Department of Design, International Slav Institute (MSI), 9 – 25 Godovikov St, Moscow. 129085, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .
  • Tkachev Valentin Nikitovich - Moscow State University of Civil Engineering (MGSU) Doctor of Architecture, Professor, Department of Design of Buildings and Town Planning, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 209-215

On the basis of the scheme of mental map the methodological sequence of educational technologies on the initial stages of high school training on architectural discipline is considered. Dichotomy of architectural activity is specified: both design and implementation process supervising.Professional consciousness of an architect is a subject of development, analysis and selection of design options and an object of creative skills accumulation, both orthodox, which includes mastering of technical disciplines and compositional−art skills, and transcendental, supervised by psychological mechanisms, in particular, associative thinking.

DOI: 10.22227/1997-0935.2014.1.209-215

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  2. Grishin S.F. Da, ya vsegda byl optimistom [Yes, I've Always Been an Optimist]. Vestnik «Zodchiy 21 vek» [Bulletin "Architect 21st Century"]. 2007, vol. 2 (24), p. 98.
  3. Al'tshuler G.S. Tvorchestvo kak tochnaya nauka [Art as Exact Science]. Moscow, Sovetskoe Radio Publ., 1979, 175 p.
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  5. Stepanov A.V., editor. Ob"emno-prostranstvennaya kompozitsiya [Volumetric and Spatial Composition]. Moscow, Stroyizdat Publ., 1993, 255 p.
  6. Sarkisov S.K. Osnovy arkhitekturnoy evristiki [Fundamentals of Architectural Heuristics]. Moscow, Arkhitektura-S Publ., 2004, 352 p.
  7. Ponomarev Ya.A. Psikhologicheskiy mekhanizm tvorchestva [The Psychological Mechanism of Creativity]. Chelovek v sisteme nauk [Human in the System of Sciences]. Moscow, Nauka Publ., 1989, 504 p.
  8. Ganzen V.A. Sistemnye opisaniya v psikhologii [System Descriptions in Psychology]. Leningrad, LenGU Publ., 1984, 176 p.
  9. Tkachev V.N., Semeshkina T.V. Assotsiatsii v arkhitekture i dizayne [Associations in Architecture and Design]. Moscow, MGSU Publ., 2011, 224 p.
  10. Hesselgren S. Man's Perseption on Man-made Environment. An Architectural Theory. London, 1975, 213 p.

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