The problem of designing and construction of objects of various purposes of an eco-sustainable type in urbanized areas is currently extremely topical. Directions and techniques used in theory and practice to improve the quality of the urban environment, still remain the subject of many scientific disputes and professional discussions. In their article, the authors propose to act in accordance with a number of environmental principles in order to solve urban-planning tasks of this kind on the territory of complex development. According to the authors, with an integrated approach to solving the problem, architectural and town-planning activities, modified according to the principles listed in the article, should ultimately contribute to the development of natural processes. In this case there will be a significant increase in the level of construction development of the territories in terms of the quality of the processes performed and an increase in the level of environmental safety.

Keywords: environmental safety, urbanized areas, urban environment, environmental principles, sustainable construction, comprehensive assessment

Comparison of material and labor costs for two methods of strengthening short of flexible compressed pillars loaded at high eccentricities was made. Pillars reinforced on a stretched face with two strips of carbon laminates with a cross section of 50x1.2 mm, in combination with three-layer transverse clamps of carbon bars, located with a pitch of 190 mm, demonstrate, when tested, the maximum strength. The breaking load was 503.5 kN, which is 2.076 times more than the reference sample. Classical reinforcement, designed for maximum load, dramatically increased the cross-section of the pillars and the amount of additional load, because the thickness of the bead with unilateral extension was 90 mm. Comparison of only the cost of material and labor costs does not give a final answer to the question about the effectiveness of one or another method of reinforcement. It is necessary to take into account the time of work, the preservation of usable space, the possibility of strengthening without stopping production

Keywords: concrete, reinforced concrete, compressed element, flexibility, strength, composite, carbon fiber

The symbolic meaning of the petroglyph in the form of human hand, distributed on the territory of the Chechen Republic is explored in detail in the presented article. For the first time it is made an attempt to associate the interpretation of the values of the petroglyph with its location on the ancestral tower. Among the main meanings are the following: the possession, the creative activity, as well as the strength and the protection. The specific residential and military towers with a description of the petroglyph and its location are considering. Besides the common images of the hand the unique petroglyphs are explored (such as: the hand in the circle, the hand with the arrow and also the image with the hypertrophic sizes of the hands). The traditions and the rites, the way of the life and the religious beliefs which are prevalent in the territory of the Chechen Republic, are used as a basis for the interpretation of the meaning of the petroglyph. Based on the comparison with the usage examples of a similar symbol in the world cultures and religions it is concluded that the picture of the human hand carries in itself, mainly, protective and benevolent function. The article was published in the framework of the program of the International Forum ""Victorious may 1945"".

Keywords: concrete, centrifugation, uniformity of structure, layer-by-layer introduction of components, compaction, water absorption at capillary suction, strength

In modern construction production, the volume of management, technical, economic and legal information has increased significantly. This increase relates to the design of buildings and structures, to the documentation of construction processes, as well as to the obtaining of permits and the assessment of compliance with the requirements of technical regulations. The reason for this growth is the widespread use of digital technologies by design, construction, regulatory and Supervisory organizations. The purpose of the work is to systematize and synchronize the documentary support with the stages of the life cycle of capital construction projects from the initiation of the capital investment project to the commissioning of the capital construction project. As a result of the formalization of the system-forming principles of documentary support for each stage of the life cycle of the capital construction project, the problems of documenting the construction industry are formulated: first, the need to automate the filling of standard forms of primary accounting and reporting, second, the improvement of information transfer and storage technologies, third, ensuring reliable protection of information that describes the processes of construction of buildings and structures. These problems should be solved in accordance with the national legislation of urban planning, approved standards of technical regulation and the current regulations for the technical safety of buildings and structures.

Keywords: documentary support of construction, life cycle, capital construction, capital investments, direct investments, design of construction projects, construction and installation works, regulatory and technical support, information

The article provides materials for research and assessment of the effect of reservoir hydro-systems on the environment. A detailed analysis of the causes and parameters of the influence of hydroelectric small hydropower stations on the hydrobtological resources of rivers. The results of the study and the assessment of the pollution level of the bottom sediments of the head node of the Kashkhatau HPP are given, which confirmed a slight excess of the permissible concentration level in terms of the content of cadmium and oil products. The main factors influencing the low-pressure reservoirs on the natural environment and on the restoration of fish river resources of small rivers are determined. According to the results of engineering and environmental studies, a comparative characteristic of soil pollution by oil products in relation to the permissible level was established, analyzing the results obtained, it was concluded that the content of oil products in the collected soil samples is within the established standards. A comprehensive assessment of pollution of water resources and soils of coastal water protection zones is given.

Keywords: reservoir waterworks, small hydropower plant, aquatic and biological resources, solid runoff, river pollution, flood waters, background concentrations, heavy metals, hydraulic structures

The article describes the work of the lattice of the tower on the example of the support of cellular communication. The analysis of the distribution of internal forces in the elements of the lattice tower support, depending on the type of connecting grid, taking into account the direction of the wind load on the face or edge structures.

Keywords: cellular tower, steel tower, lattice tower, lattice, belt, brace, wind load, internal force, stress-strain state, stress

Discusses the research in the field of design of frame structures, the cross-trusses of thin-walled beams , preliminary finite element analysis of a thin-walled profile model with shelves of a bulk shaped element. Achievement in the analysis model, the corresponding test purposes.Determination of measurement error and results obtained in the calculation.Adjustment of the model.In this work, according to the results of the calculation, the mounting points of the strain gauge are taken close to the shaped element. Restrictions of displacements were introduced into the computational model for leveling the difference between the calculations and the experimental results. The results of the study profiles.

Keywords: method finite elements, thin-walled profile, core structures

Examines the management of construction projects through the engineering building. The methods of improving project support taking into account modern management capabilities at each stage of the project life cycle are proposed.

Keywords: project; construction, management company; resources; quality, support, organization, control

The article describes the method of substantiation of the parameters of strengthening the soil base of a house by cementation through directional hydraulic fracturing. Also describes the work in the laboratory, which allowed to choose the necessary compositions of the cement mixture.

Keywords: reinforcement, soil, comentaron, cementation, directional hydraulic fracturing

The article deals with the problem of imperfect design of modern bridge structures in Russia, using the example of comparing different forms of a continuous profile of bridges. Examples are given where the use of a curvilinear form would save space on the construction of bridges. A number of calculations and their analysis were carried out, as a result of which we received that the parabolic shape of the longitudinal profile of the bridge is the most efficient and economical

Keywords: construction, bridge, longitudinal profile, slope of the embankment, efficiency, efficiency, transverse profile of the embankment, length, volume

The article discusses the main problems when building in cramped conditions of dense urban development. Proposed solutions to the existing problems, based on domestic and foreign experience of organizational and technological solutions.

Keywords: constrained conditions, environmental problems, modular structures, environmental safety, organizational and technological solutions, environment, technological environment, BIM technologies, building technologies

The influence of grain composition and active mineral addition of microsilicasuspension on properties of dry concrete mix was considered. The selection of the method of production of paving slabs with allowance for technological modes of vibropressing technology was made. The optimum dose of microsilicasuspension, having positive effect on the concrete quality, was defined.

Keywords: grain composition, dry mix, process of hydration, microsilica, paving slabs, heavy concrete, compressive breaking strength, abrasion capacity

The factors that must be taken in the selection of lightweight concrete composition with the use of granulated foam glass (GFG-concrete). In addition, the effect of the composition of concrete mixture on the physical, mechanical and thermal properties of the obtained material is shown. Portland cement CEM II / A-S-32,5 B, produced by PAO «Gornozavodskcement», was used as a binder when selecting the composition of GFG-concrete; quartz sand of the Zaostrovsky opencast mine of Perm with a particle size module of 1.96 was used as fine aggregate; granulated foam glass of fractional composition of 5-10 and 10-20 mm was used as a coarse aggregate. Determination of physical, mechanical and thermal properties of GFG-concrete was carried out according to standard methods. The obtained mathematical models allowed us to establish a functional relationship between technological factors of variation (content of granulated foam glass and water-cement ratio) and output optimization parameters (average density and compressive strength). The highest compressive strength (9,0-10,93 MPa) of HPS-concrete was obtained with a content of coarse aggregate of 20-40% and a water-cement ratio of 0,4-0,6. The average density does not exceed 1500 kg / m3, and thermal conductivity varies from 0,207 to 0,375 W/m⸱K. The optimal composition is the content of GFG from 20 to 40% and water-cement ratio of 0,4-0,6. Research have also shown that by changing technological factors, it is possible to obtain GFG-concrete with a density class D500-D1500.

Keywords: water-cement ratio, granulated foam glass, lightweight concrete, mathematical experiment planning, response surface, compressive strength, average density, regression equation

Evaluation of the effectiveness of ""green"" buildings is usually carried out by a third party using a rating system. The rating system STO NOSTROY 2.35.4–2011 assesses habitat sustainability according to 46 criteria, which are grouped into 10 categories, presented in Table 1. STO NOSTROY 2.35.4–2011. The article presents the methodology developed on the basis of the above-mentioned rating system, as well as the foreign LEED system, and the S-factor for the designed 16-storey residential building is calculated. The calculation for clarity is presented in the form of a diagram. Since the design we strive to get as close as possible to the highest grade of assessment, the most attention is paid to such concepts as energy saving and energy efficiency. Calculation of economic efficiency is possible on the basis of the resource-technological model by calculating the volume of waste during the overhaul and demolition of the designed building. This is a necessary task, since the construction of environmentally-friendly, sustainable buildings requires full consideration of the life cycle of the building, and accounting for the entire life cycle necessitates integrated design. The time spent at an early stage on the complex design of the building, taking into account the concept of sustainable development, is rather quickly compensated with the start of building operation, since it is known that the largest share of costs falls on the operational period of the building. So, as a result of calculating the S-factor, the building is assigned a certain grade of assessment. Raising the grade of an assessment of a building being erected will lead to an increase in its investment attractiveness. That is why it is important to perform a similar calculation at the design stage of the life cycle of the construction object, since in this case we have the opportunity to increase the value of the S-factor to the required.

Keywords: energy efficiency, energy resources, sustainable development, green building, green building standards, stages of the life cycle of buildings

The paper presents the systematization of the main methods for increasing the rigidity and stability of the cable-stayed and hanging types bridge structures , its given in conjunction with the analysis of the real objects. Among the methods presented are such techniques as: improving the quality of the material; additional structural elements that perceive vibrations; modification of the main elements of the design scheme. Also in the paper innovative developments applicable in the field of study are described.

Keywords: transport structure, bridge, cable-stayed bridge, suspension bridge, bridge construction, guyed, pylon, rigidity of the bridge structure, stability of the bridge structure, operational safety of the bridge, aerodynamics of the bridge

The analysis of factors affecting the life of the elements of the transmission of the car. An assessment was made of the influence of vehicle operation modes on the reliability and durability of gearbox parts. Considered modern methods of lubrication of transmission elements av-car. A method is proposed for increasing the efficiency of lubrication of friction units by using an electric field and the formation of dipole structures of a lubricant on friction surfaces. The article was published as part of the implementation of the program of the International Forum “Victory May 1945.

Keywords: gear box, transmission, lubrication methods, design, operation mode, work, ionization, lubricant

This review examines what artificial intelligence is, whether it presents any danger to people, what are the ways to “take possession” of that other technology of control of industrial robots. As scientists and leading experts in information technologies and physics speak about this.

Keywords: information technology, security, hacking, robotics, artificial intelligence, threat, vulnerability

The article deals with topical issues of the formation of new criteria for the use of land resources and the prospects for their implementation in the land fund management process at the municipal level. The analysis of the main trends in the modernization of land legislation in terms of the transition from the division of land into categories to territorial zoning, as the basis of the land management system and the adjustment of their legal regime of use, was carried out. The article was published in the framework of the program of the International Forum" Victory May 1945".

Keywords: land resources, territorial zoning, land management, land categories, classifier of types of permitted use of land resources, agricultural regulations, city planning regulations, land resources protection, modernization of land legislation