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DESIGNING AND DETAILING OF BUILDING SYSTEMS. MECHANICS IN CIVIL ENGINEERING

MODELING OF BLAST EFFECTS ON KEY STRUCTURAL ELEMENTS OF HIGH-RISE BUILDINGS

Vestnik MGSU 7/2012
  • Agafonova Vera Valer'evna - Moscow State University of Civil Engineering (MSUCE) postgraduate student, Department of Technical Regulations, Moscow State University of Civil Engineering (MSUCE), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; This e-mail address is being protected from spambots. You need JavaScript enabled to view it .

Pages 109 - 113

In view of persistent threats of terrorist attacks, protection of high-rise and unique buildings and structures from the above impacts remains one of the top-priority objectives of safety and security assurance projects. The author provides an overview of blast effects on a reinforced concrete column simulated through the employment of ANSYS software package. Possible patterns of the effects are considered. The semulation is performed in three sequent stages. At Stage 1, the initial stress-strain state of the column is simulated. At Stage 2, non-stationary gas dynamics of the explosion of 50 kg of TNT and the stress-strain state of the column are simulated. At Stage 3, destruction of the column, damaged by the explosion, is analyzed. The time period of complete destruction of the column after the explosion is ~ 100 ms. Numerical simulation of the environment by LS-DYNA software system assures accurate calculations; therefore, this software programme may be used to develop reliable actions aimed at reduction of effects of the explosion in order to prevent the progressive collapse.

DOI: 10.22227/1997-0935.2012.7.109 - 113

References
  1. Telichenko V.I., Roytman V.M., Slesarev M.Yu., Shcherbina E.V. Osnovy kompleksnoy bezopasnosti stroitel’stva [Basics of Comprehensive Safety of Construction]. Moscow, ASV Publ., 2011, 168 p.
  2. Telichenko V.I., Roytman V.M. Obespechenie stoykosti zdaniy i sooruzheniy pri kombinirovannykh osobykh vozdeystviyakh s uchastiem pozhara — bazovyy element sistemy kompleksnoy bezopasnosti. Povyshenie bezopasnosti zdaniy i sooruzheniy v protsesse stroitel’stva i ekspluatatsii (19 May 2010) [Assurance of Resistancce of Buildings and Structures to Special Complex Impacts Inclusive of Fires as the Basic Element of the System of Comprehensive Safety. Improvement of Safety of Buildings and Structures in the course of Construction and Maintenance]. Proceedings of the 1st National Congress for Comprehensive Safety in Civil Engineering 2010, 18—21 May 2010, Moscow, no. 9.
  3. Roytman V.M. Stoykost’ zdaniy i sooruzheniy protiv progressiruyushchego obrusheniya pri kombinirovannykh osobykh vozdeystviyakh s uchastiem pozhara [Resistance of Buildings and Structures to Progressive Collapse, If Exposed to Combined Special Impacts Inclusive of the Fire]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2009, special issue no. 4, 37—59.
  4. Roytman V.M. Osnovy pozharnoy bezopasnosti vysotnykh zdaniy [Basics of Fire Safety of High-Rise Buildings]. Moscow, MGSU, 2009, 107 p.
  5. Telichenko V.I. Kontseptsiya zakonodatel’nogo obespecheniya bezopasnosti sredy zhiznedeyatel’nosti [Concept of the Legislative Framework of Safe Environment]. Proceedings of the General Meeting of the Russian Academy of Architecture and Civil Engineering Sciences, 2006, no. 2, vol. 1, pp. 236—241.
  6. Belostotskiy A.M., Dubinskiy S.I., Aul A.A. Verifikatsionnyy otchet po programmnomu kompleksu ANSYS Mechanical [Verification Report of ANSYS Mechanical Software] (4 volumes). StaDiO Research Centre, MSUCE, 2009.
  7. Roytman V.V., Pasman H.J., Lukashevich I.E. The Concept of Evaluation of Building Resistance against Combined Hazardous Effects “Impact-Explosion-Fire” after Aircraft Crash. Fire and Explosion Hazards. Proceedings of the Fourth International Seminar, 2003, Londonderry, NI, UK, pp. 283—293.
  8. Structural Analysis Guide, Documentation for ANSYS, Release 14. 2012.
  9. ANSYS Parametric Design Language Guide. ANSYS Release 12.1 Documentation. Canonsburg, ANSYS Inc., 2009.
  10. Rastorguev B.S., Plotnikov A.I., Khusnutdinov D.Z. Proektirovanie zdaniy i sooruzheniy pri avariynykh vzryvnykh vozdeystviyakh [Design of Buildings and Structures with Account for Exposure to Blast Effects]. Moscow, ASV Publ., 2007, 152 p.

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PURPOSE AND ADVANCED METHODS OF GEODETIC TOOL MONITORING FOR MONUMENTS OF CIVIL ARCHITECTURE

Vestnik MGSU 5/2013
  • Rubtsov Igor’ Vladimirovich - Moscow State University of Civil Engineering (MGSU) Candidate of Technical Sciences, Associate Professor, Chair, Department of Engineering Surveying; +7 (499) 183-98-97, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.
  • Pyatnitskaya Tat’yana Aleksandrovna - Moscow State University of Civil Engineering (MGSU) Senior Lecturer, Department of Design of Buildings, Moscow State University of Civil Engineering (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation.

Pages 80-86

The authors summarize the results of long-term studies of the monuments of civil architecture on the territory of the Russian Federation. Legislative and engineering aspects of the process of monitoring of the aforesaid monuments are described in the article. Geodetic monitoring is the most efficient method of systematic observations. Unlike traditional geometric leveling that solely contemplates the identification of sediment values for displacement points, geodetic monitoring employs the method of trigonometric leveling. This method makes it possible to conduct systematic observations of both the vertical strain in the points of observation and their horizontal displacement. Thus, trigonometric leveling makes it possible to identify the sediment differences and to determine deviations from design surfaces and their time dependence, which is very important in case of cultural heritage items.The authors describe various methods of geodetic monitoring of civil architecture monuments: linear-and-angular measurements, method of side leveling, use of vertical projection devices, etc. It also provides information concerning methods of measurements of crack opening values.The authors provide references to regulatory documents and sources covering the problems of monitoring (systematic observations over a long time period) of industrial and civil projects; they cover the monitoring of architectural monuments, particularly, in hazardous situations.

DOI: 10.22227/1997-0935.2013.5.80-86

References
  1. Rubtsov I.V. Zadachi monitoringa na stadii vozvedeniya sooruzheniya [Monitoring Objectives at the Stage of Construction]. Integral. 2007, no. 5, pp. 86—87.
  2. Rubtsov I.V., Nazarov I.A., Lavrinenko E.D., Savushkina V.P. Uchet temperaturnykh deformatsiy pri geodezicheskom soprovozhdenii stroitel’stva vysotnykh monolitnykh zdaniy [Consideration of Thermal Deformations in the Process of Geodetic Support of Construction of Monolithic High-rise Buildings]. Vestnik MGSU [Proceedings of Moscow State University of Civil Engineering]. 2010, no. 4, pp. 329—334.
  3. Kho Ch., Zotova E.V., Akopyan V.F., Gusarenko S.P. Chislennaya otsenka NDS konstruktsiy po rezul’tatam geodezicheskikh nablyudeniy za deformatsiyami zdaniya [Numerical Evaluation of Stress-and-strain State of Structures Based on Findings of Geodetic Observations over Building Deformations]. Vestnik Tomskogo gosudarstvennogo arkhitekturnostroitel’nogo universiteta [Proceedings of Tomsk State University of Architecture and Civil Engineering]. 2012, no. 1, pp. 151—159.
  4. Kudrin A.Yu., Kachanov S.A., Nigmetov G.M., Proshlyakov M.Yu. Metodicheskie osnovy distantsionnogo monitoringa sostoyaniya stroitel’nykh konstruktsiy zdaniy i sooruzheniy [Methodological Fundamentals of Distant Monitoring of the State of Structural Elements of Buildings and Structures]. Tekhnologii grazhdanskoy bezopasnosti [Civil Safety Technologies]. 2006, vol. 3, no. 3, pp. 80—83.
  5. Korgin A.V., Zakharchenko M.A., Ermakov V.A. Monitoring tekhnicheskogo sostoyaniya otvetstvennykh sooruzheniy s ispol’zovaniem sovremennykh geodezicheskikh metodov izmereniy i chislennogo analiza metodom konechnykh elementov [Monitoring of Technical Condition of High-responsibility Structures Using Advanced Geodetic Measurement Methods and FEM-based Numerical Analysis]. Monitoring. Nauka i bezopasnost’. [Monitoring. Science and Safety.] 2011, no. 3, pp. 58—63.
  6. Korgin A.V. Informatsionnoe obespechenie inzhenernykh izyskaniy i obsledovaniy pri rekonstruktsii sooruzheniy [Information Support of Engineering Surveying and Inspection Projects in the Process of Reconstruction of Structures]. Geotekhnika [Geotechnical Engineering]. 2010, no. 1, pp. 49—54.
  7. Shakhramanjyan M.A., Nigmetov G.M., Larionov V.I., Nikolaev A.V. Advanced Procedures for Risk Assessment and Management in Russia. International Journal of Risk Assessment & Management. 2001, vol. 3, no. 4, p. 303.
  8. Cowling P. Precise Monitoring of Public Buildings. Facilities. 1995, vol. 13, no. 1, pp. 25—27.

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