"Вестник МГСУ"

The author focuses on the issues of arrangement and positioning of main streets in the urban structure. Principles of organization of main streets, identified on the basis of Russian and foreign examples and differentiated with respect to central, middle and peripheral areas of the city, are analyzed in detail. The aforementioned principles, specified by the author, are considered as a means for (1) the revival of the urban social activity, and (2) the increase of the attractiveness of near-highway areas for pedestrians. Each of the above principles is implemented in varied areas of cities; however the most frequently used principles are: pedestrian accessibility, urban space unity, priority of pedestrians, subordination of new structures to the architectural heritage in the central areas of cities;easy transport accessibility, anthropocentricity, functional intensity, comfortable urban environment in the middle areas of cities;traffic safety, aesthetic quality of the urban environment, intensive use of the underground space in peripheral areas of cities.

The article covers the problems of reconstruction of the famous sculptural group designed by V.I. Mukhina «Worker and Collective Farm Girl», created in the 1930s for the Soviet pavilion of the universal exposition in Paris in 1937. The author considers the structural and cultural features of the monument and drives attention to the synthesis of architecture and sculpture in the pavilion designed by B.M. Iofan.The author also emphasizes some constructive features of the sculpture such as the scarf which is an important compositional and constructive element, and describes the process of preparation of the sculpture to construction in Paris and assembly in Moscow after The Paris World Exposition. The author touches the problem of the sculpture installation in Soviet period. The author performs a comparative analysis of the sculpture before and after its reconstruction and covers the aspects of construction works, including the construction of a new modern pavilion, or a pedestal for the sculpture.

The article deals with the methods of restoration of large buildings of Orthodox churches in Russia. Practical solutions, described in the article, are applicable to the majority of church buildings partly demolished or rearranged during the Soviet era. The authors describe the restoration works performed at the convent of Martha and Mary as a good example of this practice. The article is focused on the general issues that complicate the restoration process, including lack of any uniform restoration solutions, lack of global cultural legacy protection programs, and the poor technical condition of restored buildings.The authors provide an overview of the restoration project that involved restoration and renovation of the New Jerusalem monastery building and Znamenskaya church building in Kholmy village. The solution was to have several subcontractors involved into the design and construction process. Department of reconstruction and structural inspection (ORZS) of Moscow State University of Civil Engineering (MGSU) was responsible for the supervision over the process of restoration and the work quality control. This article highlights the growing demand for the restoration control, especially if versatile assignments associated with foundations, structural, mechanical and finishing works are performed by different contractors. Special attention is driven to advanced waterproofing solutions applicable to underground structures, as leaks damage unique wall paintings. The authors raise the issues of research into the international experience of reconstruction and restoration of architectural monuments, methods of boosting religious tourism and respect for the history of Russia.

considered in the article. The author analyzes the influence of the 1812 Patriotic War on the political and cultural life of Russia, as there had been a rise of national consciousness in Russia in the first decades of the 19th century related to the victory over Napoleon. The author drives particular attention to the historic fact that Moscow suffered a lot more than other Russian cities in the War of 1812; the city was completely destroyed by the fire. The author provides statistical data related to the city as of the autumn of 1812. Moscow reconstruction plan proposed by Mr. Gestle, architect, and the procedure of "Commissioning of Structures", drafted under the guidance of O.I. Bove, architect, are analyzed in detail. The author also covers the personal contribution made by O.I. Bove, his associates D.I. Zhilyardi and A.G. Grigor'ev, into the reconstruction of the city centre.
The article features the town-planning policy of 1820-1830 and patterns of late classicism in the Moscow architecture.
The article is dedicated to the year of the Russian history and one of its major events, the anniversary of the victory in the Patriotic War of 1812.

The article covers a relevant historical and cultural problem of elaboration and maintenance of monuments of the military glory of 1812. The author considers various architectural and sculptural monuments illustrating heroic events of Patriotic war of 1812, built in the two Russian capitals - Moscow and Saint Petersburg in different historical periods, and also in primordial Russian towns, such as Smolensk, Vyazma, and Maloyaroslavets. Architectural and composition-related features of this or that monument erected against the background of historic events of the war of 1812 are analyzed in detail. The author demonstrates the links between architecture and sculpture within the framework of town-planning solutions implemented in the pieces that have found their places in the towns enlisted above.
The value of symbols of the Victory and Glory of the Russian army and the Russian people is marked. The names of the most famous heroes of this war, starting from a field marshal and ending with a soldier are inscribed.
By addressing the historical and cultural heritage of Russia, the author informs readers about the most significant events of the war. The author mentions an acute problem of the modernity, that is, preservation and restoration of monuments, and shares his view point.
The value of the historic and cultural heritage of Russia for military and patriotic education is emphasized. The article is prepared within the framework of the year of the Russian history.

The article discusses some problems of combination of old and new elements of urban space development, positive interaction of which significantly contributes to the unity and originality of architectural and artistic image of a city. The сonstantly evolving complex structure of the city exists not only in space but also in time. With the time the spatial structure of the city changes, as well as the ideas about aesthetic values and the problems of combination of nonsimultaneous formation elements arise. In the article the problems are considered from several points of view: interaction of the old and the new, formation of the historical monuments, their estimation, protection and integration to the new system. Research and analysis of some integration problems of old and new in the development of urban space lead to the following main conclusions. In a complex system of a city the coexistence process of structures is important, created in different times - the integration of old and new, which forms the unity of the urban environment. Integration of old and new, where the old acquires new qualities and the new is in harmony with the old, forms the historical layers, which give the ability to perceive the city in time. The time factor, saturating these layers, gives the city a personality and creates a link between the past, the present and the future via physical structures. In the integration of old and new artistic image formation based on contrasting expressiveness is essential, which is also advisable in case of ensuring the compositional and artistic communication between new buildings and historic zones. In the structure of the city not only unique monuments are valuable, but also their later additions and ordinary building complexes, which are the elements that form the environment and conditions of its perception, express the characteristic features of a certain period and complement the multi-layered artistic image. The combination of old and new is more effective coexisting in the interconnected system of urban processes of layers, created in different times, where a rethought historic building changes the relationship with the environment, gets a new meaning, becomes viable, expands the artistic potential of the new ensemble and associates with the area and its history. Process of the protection of historical environment and facilities in the city should always be considered in a unified approach with the tasks of reconstruction and the formation of new complexes. Protection and reconstruction process should include a wide range of approaches. Task of protecting an individual object, its parts or the building complex, individually defined for each case, contributes to the saturation of the image, where the introduction of the elements of different periods illuminates the process of changes within long time period. In the case of the introduction of the new in the old, modern architectural form should be converted into a part of the formed structure, must not violate the general while showing individuality, but saturate its historical diversity and preserve the opportunity for further development, the formation of flexible composition systems capable to transformation, is an ongoing task in present.

Monasteries, their activity and lifestyle have always played an important role in the culture of various nations. Monasteries are objects of cultural heritage. Their architecture is connected with national features on a nation, particular canons of Christian (orthodox, catholic), Buddhistic or other religion. The article describes ancient monasteries in Russia amid the global development, historical national characteristics monasteries are analyzed, as well as architectural ensembles, reflecting the function and role of monasteries in public life, showing their spiritual and cultural heritage, monastic tradition, the historical value of the monastic landscape and its conservation conditions, the inclusion of the monasteries in the world cultural heritage is noted.

The current need for additional domestic accommodation has necessitated the formation of new housing types for different categories of families in terms of affordability and market requirements. In particular, the demand for apartments can be met by the renovation of Soviet pre-cast concrete residential blocks. Firstly, there is a need to quantify the growth of the elderly population and the ever-increasing desire to preserve friendly relations between the generations based on Tajik tradition. Secondly, there is a need to design special residential units intended for the resettlement of extended families, family groups and families consisting of several generations. The renovation of the old Soviet buildings will reduce not only the physical deterioration of a building by complete or partial replacement of individual structures, but will also eliminate obsolescence as a result of internal redesign and enhancement of a building. An analysis of the space-planning and structure of a residential building will establish the degree of obsolescence, as well as address the question of reconstruction as a dwelling for extended families through the partial redevelopment of apartments. Such redevelopment would increase the area of common rooms to include insulated terraces and loggias, the removal of some partitions and the conservation of existing sanitary cells. This article deals with the reconstruction of large apartment buildings based on Soviet mass-produced residential block series TTZH 1-464-AC-3, which is dwelling for extended families consisting of several generations. The article proposes 4 different options for redevelopment. These options will increase the living space of the reconstructed residential building from 25 to 35 %, and will increase the population density in all dwellings by 50 %. The intention is to improve space-planning of mass-produced residential blocks, series TTZH 1-464-AC-3, in order to match the demographic characteristics of Tajikistan for extended families and family groups.

ASPECTS All over the world a lot of unique architectural monuments are lost according to different reasons. The role of cultural objects can hardly be overestimated and their total loss is irretrievable. Preservation of architectural monuments and complexity of their investigation and design solutions development depend on many factors: age of the monument, structural peculiarities, geographical position, their value as objects of cultural heritage, etc. The article offers the description of a reconstruction project of a bell tower in Joseph of Volokolamsk Monastery, which had been destructed in 1941. The bell tower in Joseph of Volokolamsk Monastery situated in Volokolamsk region of the Moscow Region near village Teryaevo is an outstanding example of the architecture and construction technologies of the 16th-17th centuries. The design group conducted extensive research, made a conclusion on the state of the surviving elements and offered several variants of bell tower reconstruction. It was decided to reconstruct the bell tower over the surviving first tier with transferring the loads to the new bearing structure. The first tier is being reconstructed and preserved.

Subject: in this article, we consider the most important problem in modern restorative practice - a restoration of partially destroyed, ruined and even lost buildings that possess high artistic value, constitute the ceremonial residences of European rulers and are now regarded as cultural symbols of their countries. The analysis of assumptions and methods for restoration of residences, palaces and park ensembles is conducted on the example of such objects as the Royal castle in Warsaw, Berlin City Palace, City Palace in Potsdam, Constantine Palace in Strelna, the Royal castle in Lithuania. On the basis of performed analysis of the restored objects, we consider the conceptual proposals for the project of reconstruction of the Lower cottage complex in Alexandria Park in Peterhof town. Research objectives: determine the main criteria for selecting forms and methods for reconstruction of the residences of Heads of State taking into account their value characteristics and criteria of significance, the importance of the reconstructed object in the surrounding environment. Materials and methods: the study was based on the review and analysis of the literature, scientific works, articles, theses, studies of domestic and international authors, analysis of conceptual projects for the restoration of ruined objects that are planned for implementation in the short term. Results: the main methods of restoration of the lost architectural monuments as cultural symbols of power in European and domestic practice are determined, the most typical value characteristics of recreated objects and their significance in the environment and national culture of the country are identified. Conclusions: the result of the work was determination of the main criteria and prerequisites for restoration of residences when selecting the method of their restoration, and determination of significance of the characteristics and importance of already reconstructed buildings. The supposed functional purpose of the monument plays an important role in determining the method of reconstruction. The value of the obtained results lies in their nature: mass character of the global scale activity, and as a consequence, their “vitality”, the relevance to modern society. As part of the development and approval of the optimal solution for reconstruction of the architectural monument, it is advisable to use 3D modeling software, which allows us to thoughtfully and as accurately as possible determine all aspects of the planned action.

Subject: introduction of energy-efficient materials and decisions in the field of reconstruction is the factor influencing the reduction of heat losses. Use of such materials and decisions leads to considerable economy and improvement of heat insulation properties of the building. Research objectives: establish efficiency of application of methods of passive and active protection of buildings against heat losses and increase of energy-saving during reconstruction. Materials and methods: theoretical and methodological basis of the research was the scientific work of domestic and foreign scientists on the issues of energy efficiency management and introduction of energy-saving technologies at capital construction facilities and educational institutions. General scientific research methods (analysis, synthesis, generalization), comparison method, classification method were used during the research. Detailed thermograms of buildings, thermal imaging examinations, and monitoring of microclimate parameters were used. Results: modern approaches to the problem of energy-saving and provision of comfortable living conditions are investigated. The analysis of the use of active and passive methods to improve energy efficiency of buildings is carried out. Conclusions: improving the energy efficiency of buildings during reconstruction must be addressed comprehensively, taking into account measures aimed at increasing the effect of fuel and energy resource consumption.

Subject: the deterioration and technical condition of water supply and drainage pipelines in most of Russia’s settlements, the limitation of material resources for their restoration and renovation in conditions of housing and communal services reform, require a scientifically grounded approach to the reconstruction and modernization of these systems [1-4]. To solve these problems, the Government of the Russian Federation approved and introduced normative documents1, 2. According to them, the development of centralized water supply and water disposal systems is carried out only in accordance with the general schemes of these systems3. As part of these schemes, it is necessary to develop an electronic model of a centralized water supply and disposal system for an objective assessment of the impact of activities aimed at optimizing their work [5]. The algorithm for constructing and calibrating the electronic model of the city’s water supply system is the subject of this study. Research objectives: development of a methodology for constructing electronic models and algorithms of calibrations which are applicable to the Russian Zulu software. Materials and methods: for an objective assessment of the impact of long-term measures aimed at improving the operation of the water supply network, as well as the development of the city’s water supply system, we use modeling along with the implementation of an adequate electronic model. The adequacy of the electronic model is achieved via its calibration [6]. The object of the research is the water supply system of Minsk and Salavat in the development of electronic models for realization of their development and reconstruction directions. Results: based on the experience of implementation of a number of water supply systems (Ufa, Irkutsk, Penza, Orenburg, Tyumen, Salavat, Minsk), a methodology for constructing and calibrating electronic models was developed; the algorithms applicable to the Russian Zulu software and necessary for construction of models were also developed. Conclusions: the results of the work are implemented on a number of water supply systems in the cities of Russia and can be recommended for application of information technologies in electronic model realization, the assessment and analysis of the functioning of water supply systems and the optimization of their operation.

The main object of this study is the reconstruction, renovation and modernization of the housing built in the period 1975—1985. These buildings have low energy efficiency due to the poor thermal insulation properties of the walls. These apartments do not meet the necessary requirements for year round warmth and comfort.Reconstruction is more preferable, than new-build, because of the cost saving for the land acquisition. Reconstruction is generally 1.5 times cheaper than new-build with 25—40 % reduced cost on building materials and engineering infrastructure.Increasing the width of the apartment blocks from 12 to 15 m can save 9—10 % on the consumption of thermal energy for heating and reduce the m2 construction cost by 5.5—7.0 %. In—5-9 storey high-rise buildings the savings are 3—5 %.Therefore, the width of the apartment block should preferably be between 9—12 m but could be extended to 18 m. The depth of the apartments themselves will be 5.4 — 6.0 —7.2 or 9.0 m. During the reconstruction of 5-storey residential buildings (Building Type105) in a seismic zone, an increase in the width of the block and the lateral stiffness of the building is achieved by building a new reinforced concrete (RC) frame on both sides of the building with a depth of between 2 and 6 m. This technique is especially effective in increasing the seismic resistance of the building. Self-supporting walls of cellular concrete blocks (density 600 kg/m3 and a thickness of 300 mm) are constructed on the outside of the frame, taking care to avoid cold bridges.Model studies have shown that in the conditions of hot-arid climate the thickness of the air gap in a ventilated facade does not significantly change the cooling-energy consumption of the building, and heating consumption is significantly increased. The building's energy consumption is most influenced by the volume of the air in the air gap. By increasing the ventilation rate in the air gap, the energy consumption for building heating increases and for cooling — slightly decreases. For the conditions of the northern region of Tajikistan, the recommended optimal thickness of the air gap with ventilation is 60 mm.

The authors discuss the arrangement of supplementary floors in the rooms of a boiler house in the course of its renovation back in 1988. A structural solution contemplating supplementary floors made of small reinforced concrete slabs resting on steel beams was implemented in the course of renovation. Pursuant to the proposed design solution, reinforced concrete slabs were arranged with their ribs down and leaned upon ribs of metal beams. The findings demonstrate that small reinforced concrete slabs rest both on top and bottom ribs of metal beams. Moreover, patterns of arrangement of slabs different from the design solution were implemented. Some slab ribs looked down while others looked up. Therefore, the implemented pattern of arrangement of the above elements was different from the one specified in the design, and the difference caused different values of load that the slabs were exposed to, and the same about the pre-designed cross sections of slabs. Alteration of design solutions concerning the load produced by reinforced concrete slabs onto metal beams also caused changes in the levels of supplementary floors of the building versus the design solution. This inconsistency can cause difficulties in terms of design associated with any future reconstruction of a boiler house.The analysis of reinforced concrete slabs performed in the course of the research confirms the possibility of their arrangement according to the pattern different from the one specified in the design.

The authors consider particular methods, technologies and organizational aspects that may be implemented in the construction and renovation of pipelines using polythene materials instead of metals due to their economic and practical efficiency. It is noteworthy that the corrosion problem of steel pipelines is the phenomenon of metal destruction that reduces the throughput of pipelines and facilitates obstructions, juncture cleavages and water leaks as a result of reduction of service lives of pipelines. The authors analyzed the efficiency of polythene pipes from the viewpoint of hydraulic processes and the economic expediency; the authors identified that the polythene pipe’s throughput is 3 times as much as the one of steel pipes. Also, the authors determined the economic efficiency of polythene pipes: USD 0.5 million per 1 kilometer of pipeline.The authors take account of the technology-related aspect, as the water pipeline construction and reconstruction processes are limited by dense urban environments or due to the absence of overhaul factories in the close proximity to pipelines. Therefore, the results of the analysis evidence the efficiency of application of polythene in construction and reconstruction of pipeline engineering systems. It is highly resistant to abrasion and corrosion; it boosts the water flow velocity due to the low rough-ness of the internal surface; its service life is long enough, and its transportation is problem-free.

Comfort inside buildings is dependent on temperature, humidity and other parameters. Usually the higher the temperature and humidity, the more people feel discomfort. However, if the internal relative humidity is low, the inhabitant also feels uncomfortable as a result. Headache, eye irritation, sore throat and dry skin are the symptoms of these dry conditions. Dry air reduces natural protection from bacteria, infections, and makes people vulnerable to attacks of viruses and other micro-organisms. In addition to the problems associated with low humidity, excessively high humidity can also cause problems. The optimal level of humidity in the room contributes significantly to the comfortable environment. Chill may be perceived differently at the same temperature with different values of air humidity in the room. Comfort is determined by the ratio of room temperature to humidity. The temperature perceived inside and dependent on the moisture content, is measured by the Humidex index.European regulations define a desirable range of relative humidity and comfort. The humidity-dependent zone of comfort rests within this range. High temperatures are less tolerable in the high humidity environment. Modeling results obtained before and after the renovation and modernization of a five-story residential building (105 series) in Khujand, Tajikistan, helped to define the ideal parameters of relative humidity and comfort. The author proposes an ideal ratio of relative humidity to comfort and demonstrates that the optimum humidity and temperature values contribute significantly to the comfort of a person in the hot, dry climate of Central Asia.

The energy demand of a 5-storey residential building (a 105 series design structure built in 1980), located in the city of Khujand, Tajikistan, was simulated at the Fraunhofer Institute of Building Physics in Germany using WUFI+ software. The purpose of the simulation was to reduce the energy demand for its heating and cooling, as well as to ensure thermal comfort inside the building in the course of its reconstruction and modernization. Reconstruction and modernization of this residential building includes the construction of POLYALPAN ventilated façade, application of mineral wool insulation sheets, aerated concrete blocks, and replacement of old windows by the sealed double glazing.The analysis of micro-climatic parameters of this residential building is performed in furtherance of Category II of EN 15251 "Indoor environmental input parameters for design and assessment of energy performance of buildings addressing indoor air quality, thermal environment, lighting and acoustics", and it is based on the comprehensive assessment of the values of heat indexes PMV (Predicted Mean Vote) and PPD (Predicted Percentage of Dissatisfied). The research is based on the modeling pattern limiting the air temperature values on the premises during the heating period and reducing the energy demand for its heating through the employment of a heat exchanger. The findings prove that the analysis of micro-climatic parameters of buildings would benefit from the comprehensive and integrated assessment of the values of thermal comfort indexes PMV and PPD and from the evaluation of thermal insulation properties of clothes. Moreover, the findings demonstrate the need for development of national standards of the microclimate inside residential buildings. The research was based on the data simulating the climatic conditions in the northern region of Tajikistan during an extremely hot summer season and the optimum indoor air temperature of +24,3 °C instead of 20—22 °C. The research has proven that it is advisable to record the cooling data for five hottest months (May through September) instead of three, which is a common practice. The energy savings of 47,5 % were achieved using a 90 % efficient heat recovery procedure during the winter period when mechanical ventilation systems are in operation. Using heat exchangers after the renovation and modernization of residential buildings can significantly reduce the load on the heating system of a building.

On the modern stage of reconstruction and major repairs of linear parts of main pipelines lots of technologies exist. In scientific literature authors often raise questions on ecological justification of major pipelines design. Choosing ecologically safe technology taking into account the machines, mechanisms and equipment used, their quantity, physical parameters, designed life state, nature and climatic conditions is a complicated process. In the article the stages of ecological justification of technological processes are considered in case of reconstruction and overhaul of the main pipelines. Each stage has its purpose, which corresponds to a certain stage of life cycle of the main pipeline: design and reconstruction (capital repairs). The choice of ecologically safe technology is based on exhaustive information, which is acquired by means of application of GIS-technologies.

The most possible increase of market value after large-scale reconstruction can be reached when a building or a group of buildings are situated in rather economically attractive areas, while the most part of the area is already repaired. In these cases the costs of repairs can be compensated by means of increase in the market value and sale of additional floors. The wide use of more effective methods of construction can also increase the price in the repaired real estate objects. The influence on the economic value of houses and buildings can be considerable also due to the improvement of operational qualities and because of an esthetic component. The opportunities for substantial increase of energy efficiency in economic sense are directly connected with the needs for large-scale reconstruction of the outdated building. Nevertheless, the changes of just windows, repair of facades, etc. lead to reasonable improvement of power efficiency, and respectively and building costs in general. The use of natural resources in construction during repairs of the building and at the stage of operation influences the environment. The influence degree depends not only on isolation, but also on the choice of the type of repair, energy efficiency, front and roofing materials, and also on the use of energy raw materials, necessary for construction process.

RECONSTRUCTION IN A CITY The demand in comfortable housing has always been very high. The building density is not the same in different regions and sometimes there is no land for new housing construction, especially in the central regions of cities. Moreover, in many cities cultural and historical centers remain, which create the historical appearance of the city, that’s why new construction is impossible in these regions. Though taking into account the depreciation and obsolescence, the operation life of many buildings come to an end, they fall into disrepair. In these cases there arises a question on the reconstruction of the existing residential, public and industrial buildings. The aim of the reconstruction is bringing the existing worn-out building stock into correspondence with technical, social and sanitary requirements and living standards and conditions. The authors consider the currency and reasons for reconstruction of residential buildings. They attempt to answer the question, what is more economical efficient: new construction or reconstruction of residential buildings. The article offers a method to calculate the efficiency of residential buildings reconstruction.