Introduction. The article focuses on the problems and prospects of building information modelling (BIM) technologies development in the construction industry of the country, valid development strategies, BIM technologies implementation and influence in the construction industry. It has been proved that creation of a digital twin of a construction facility at the design stage ensures its efficient management at the construction as well as operational stages. By studying BIM technologies legal regulation framework the possibilities of their use by the construction organisations have been outlined. The stages of the capital construction facilities life cycle have been defined, the categories of companies using BIM technologies in designing and construction practices have been specified. The aim of the study is to identify the problems hindering implementation of information modeling technologies in the construction industry of the Russian Federation and to propose solutions through automation of all processes at different stages of the capital construction facility life cycle.
Materials and Methods. There are plenty of factors directly and indirectly affecting the time period of BIM implementation in the construction industry: the role of the state, the existing construction philosophy and many others. Considerable progress can be observed in the Scandinavian countries, in Netherlands, Germany, Singapore, France. The leading positions belong to the USA and Great Britain. But even in these countries it would be wrong to speak about complete implementation of BIM in the construction industry. In the Russian Federation the UK experience of BIM technologies implementation in the construction industry is used. For the UK authorities the main outcome of the information technologies implementation is maximum transparency of budget spending and control of construction costs. Therefore, all state construction projects are executed using the information modeling technologies. Russia has partly adopted the foreign countries experience in its construction industry – according to the Government Regulation No. 331 the design of all capital buildings and structures under the federal and regional orders must be carried out using an information model; and the package of materials to be included into an information model and general rules for its formation are regulated by the Russian Federation Government Regulation No. 1431, put into effect earlier.
Results. In the Russian Federation the implementation of BIM technologies in the construction industry is regulated by the following regulatory documents: the Urban Planning Code of the Russian Federation, the Russian Federation Government Regulations, National Standards of the Russian Federation (GOST) and Codes of Practices (SP), Methodological Guidelines and Requirements for the State Expert Appraisal of Design Documentation and assessment of the information model. One should refer to the regulatory documents available on the official websites such as websites of the National Association of Organisations in the field of Information Modelling Technology (NOTIM), National Designers and Surveyors Association (NOPRIZ), as well as the Ministry of Construction, Housing and Utilities of the Russian Federation (Minstroy of Russia). On the whole BIM technologies in Russia are underdeveloped. BIM technologies are practically not used at the stages of construction and operation.
Discussion and Conclusions. Building information modeling is more than just a new way of designing. This is a fundamentally different view on the facility life cycle management (building, installation of equipment, operation and maintenance and repairs). BIM technologies implementation in the construction sector is a long and controversial process. Sufficient time is required to optimise and set up the information technologies application in all areas of construction and operation. This work resulted in working through and finding solutions to the main problems of implementing the information modeling in construction: as follows from the foreign countries experience the acceleration of BIM technologies implementation in Russia should begin with strengthening the legislative framework via drawing up the national standards and technical regulations upon the initiative of the Ministry of Construction, Housing and Utilities of the Russian Federation.

Introduction. A large number of building materials is used for construction of buildings and structures, the reinforced concrete is being one of them. It has the leading position when choosing the material for construction of buildings and structures. However, like any other material, the reinforced concrete has its disadvantages: apart from considerable weight of the reinforced concrete structures, the impossibility to cover with them the large spans can also be referred to disadvantages, as the increase of structures’ spans impairs the economic efficiency of using the reinforced concrete. To handle this, engineers have developed the technology of steel reinforcement prestressing. Thanks to prestressed reinforcement, it has become possible to increase the spans and reduce the cross section of the reinforced concrete structures. This scientific paper investigates the technology of steel reinforcement post-tensioning.
Materials and Methods. The materials for the research were obtained from the available scientific editions, articles, journals and Internet blogs. The documents’ content analysis method was used to write the article. In the course of the research, it is planned to find the information about the post-tensioning technology. The object of the study is the steel wire-rope post-tensioning.
Results. Thanks to the research, the data on the history of origin of the reinforcement prestressing technology was obtained and the advantages and disadvantages of post-tensioning were analysed.
Discussion and Conclusions. After the research, the data on the technology of steel reinforcement post-tensioning was obtained, the application of the technology in Russia in the construction of industrial and civil facilities was considered. This technology allows increasing the spans and reducing the cross section of the reinforced concrete structures.

Introduction. The construction industry trends are developing towards the growth of the share of unique buildings and structures. However finding the managerial and engineering solutions for implementation of such projects becomes a problem due to the lack of experience in construction of such facilities. This situation leads to the problems caused by the breach of the construction deadlines, increase of the project cost and deterioration of the quality of performed works. The purpose of this research was to study the contemporary construction experience of the People's Republic of China taking construction of a unique bridge structure as an example.
Materials and Methods. The analysis methods were used in the research to analyse the information obtained in the frame of studying the organisation of construction of the bridge structure load-bearing part. Key points affecting the efficiency and quality of construction were highlighted.
Results. As a result of the research it was determined that in construction of the unique facilities the primary attention should be paid to the construction preparation stage, including consideration of possibility of additional funding. The implementation of the project-based approach to the development of complex investment and construction projects is a prerequisite for the successful completion of construction. The introduction of a weekly-daily planning system allows monitoring and taking timely actions to eliminate the problems arising during construction. Training and retraining of management personnel and specialists allow making qualified decisions as the project progresses.
Discussion and Conclusions. This study has not only theoretical but also practical significance. The methods and technical solutions accepted in construction of a unique bridge structure in China can be used in other regions of the PRC and in the Russian Federation. These approaches will help to successfully implement the complex investment and construction projects with proper quality, in due time and within the allocated budget.

Introduction. The construction of cooling towers has always been and remains a pressing issue in today's world. Wide spreading of cooling towers is necessary for power industry. The problem lies in the allowable location of a set of hyperbolic cooling towers at a premises of a single fuel-and-energy facility. The aim of the present study is to investigate the wind pressure distribution on a cooling tower having the shape of a single-cavity hyperboloid of rotation and the cross-interference of the closely spaced cooling towers. To achieve the set forth aim the following objectives are being solved: the finite-element modeling of a free-standing and several closely spaced structures, the analysis of the wind pressure isofields at different elevations and the comparison of the results with the currently valid standards.
Materials and methods. The object of the study is the hyperboloid type cooling towers of total height 53.3 m. The analysis is carried out with the help of the three-dimensional finite-element modeling in the CFX module of the verified ANSYS software package. The k-epsilon turbulence model is used. For simplification, the wind speed is assumed constant along the structure’s height. The shells in the shape of a single-cavity hyperboloid including the airspace are specified by a parametric equation, which is modeled by using the solid finite elements in the form of tetrahedrons. The surface of the shells is assumed to be perfectly smooth. Besides finite-element analysis, the calculation of the interference factor is made according to the standards currently valid for reinforced concrete cooling towers.
Results. The results of wind pressure distribution on free-standing and closely spaced cooling towers were obtained. The data on the wind pressure isofields at various elevations at various locations of tower structures was given.
Discussion and conclusions. Upon comparing the obtained results with the currently valid SP 20.13330.2016 «Loads and actions» and SP 340.1325800.2017 «Reinforced concrete and concrete structures of cooling towers. Design rules» it was found that the distribution of wind pressure along circumference depends on the height, which had not been taken into account in the regulatory documentation. The analysis of cross-interference of the closely spaced cooling towers was carried out and it was demonstrated that in the currently valid standards the interference factor had been greatly overestimated.

Introduction. At the present stage, domestic enterprises in the construction industry are faced with a number of difficulties. The increased uncertainty of the economic situation in the country forces the organizations of the construction sector, when implementing investment and construction projects, to adapt to newly emerging circumstances, shorten the planning horizon, and apply modern technologies and management methods. BIM technologies demonstrate their effectiveness at all stages of the life cycle of construction projects, which makes them promising to use in the current realities.
Materials and Methods. The possibilities of using BIM technologies in construction projects are becoming wider - from the familiar design using digital models to the creation of extensive databases used in modeling the processes of operation of objects, their reconstruction or demolition. Today, BIM technologies are an effective tool for achieving the internal goals of construction organizations and for organizing effective interaction with the end user of construction products.
Results. The use of BIM technologies makes it possible to make effective technical, organizational and technological decisions, both in strategic planning and in operational management during the implementation of investment and construction projects. Information modeling technologies save resources at all stages of the project life cycle, but the best results can be achieved with an integrated approach to their implementation.
Discussion and Conclusions. Having been widely used in foreign construction practice, BIM technologies make it possible to reduce the total cost and timing of the implementation of investment and construction projects and at the same time improve the quality of design and survey work and construction and installation work. Qualitative and quantitative benefits for organizations in the construction industry in the implementation of information modeling technologies determine the interest in them from Russian companies. In the context of active digital transformation, including with the support of the state, BIM technologies are becoming a tool for optimizing the activities of construction enterprises in the implementation of investment and construction projects at each of their stages, as well as increasing the competitiveness of firms in the domestic and foreign markets.