In this article we consider issues of structure designing of reinforced concrete rods with cirle cross-section. There are theoretical aspects of rod torsion in the article. We analyse actual codes and standards and found out that there is no any methods of rod calculation with circle cross-section. Methods of calculation are given in the article. Field tests of rod torsion were carried out. In article you can see main points of test, the procedure of test and results.

Keywords: rod torsion, rotational moment, roll, reinforced concrete, verification test in situ, designing of reinforced concrete rods, shear reinforcement

This article is devoted to the issue of rational exploitation of space in cities with a large population. It is known that a sharp decrease in the area of land plots within the city limits accessible to public use leads to a decrease in the quality of life of citizens. The authors of this article are considering in detail the possibility of using roofs as additional public spaces. The article discusses such methods for using roofs as solar power generation, rainwater harvesting, apiaries and poultry farms, sports complexes, playgrounds, vegetable farms, etc. Particular attention is paid to the so-called ""green roofs"", their design, classification, application. The authors of this article talk about the numerous advantages of green roofs, such as the ability to manage wastewater, reduce the influence of “urban heat islands”, create new public spaces, create new jobs, increase energy efficiency, reduce noise, increase market value, etc. However, the authors of this article did not forget to show the disadvantages of green roofs. The main disadvantages of this project are the higher initial cost, the increased load on the foundation and walls, and the increased costs of operation. Nevertheless, the authors draw conclusions that the advantages of green roofs far exceed their disadvantages and the further development of this direction is very important and promising. 3. Installation of active seismic resistance monitoring systems (active method). Such an active feedback control system contains three main elements: a. Sensors for measuring external excitation; b. Computer hardware and software; c. Drives to provide the necessary control forces. At present, the most popular is the hybrid method of semi-active control, which combines the advantages of a seismoisolating basement with passive shock absorbers, which is much more economical in comparison with the active method.

Keywords: city, roof in operation, green roof, dense urban development, energy saving, ecology, green building, green building

Discusses the results of experimental rimentale-theoretical research of the building frame based on the tone-kostenich cold-formed profiles. In the course of research, the stress-strain state of the RA-we from thin-walled profiles was studied; the method of preliminary modeling of structural elements using FEM was developed; the design of the test bench and the composition of the test program of frames from thin-boned steel pro-files was developed; the comparison of the results of theoretical and experimental studies; the completion of numerical calculations of the con-struction nodes; the features of work under load and its compliance with the applied design scheme are studied.

Keywords: thin-Walled profile, construction Tests, finite element Method, Test bench

This article presents a simulation of the design scheme of a monolithic floor slab in the LIRA-SAPR 2013 software package. The calculation is based on the finite element method. The calculation of the floor slab is made as part of the entire building, taking into account the rigid coupling of the columns with the slab. The analysis of the results of static analysis is carried out and the selection of reinforcement for the slab is performed.

Keywords: program complex, LIRA-SAPR 2013, design scheme, finite element method, static analysis, selection of fittings, monolithic slab, overlap, design combination of forces

This article presents experimental data on the effect of inter-window heating of the air gap on the heat-shielding properties of a wooden window. In recent years, Russia has significantly tightened the requirements for the heat-shielding qualities of translucent structures of buildings and structures. However, heat losses through the windows continue to account for a significant portion of the total heat losses through the window structures of buildings. Therefore, in order to reduce heat loss through translucent structures and solutions to the problem of energy saving in buildings, it is necessary to look for ways to increase the resistance to heat transfer of windows. One of the solutions for improving the thermal insulation of window structures and increasing comfort in the premises of residential and public buildings in the winter period is the use of inter-glazing space heating.

Keywords: air gap, design, heating element, heat transfer, building, window construction, temperature, heating, interglass space, heating

If defects are found in the foundation of an already constructed building or if the load on it increases, it is necessary to examine it and, if necessary, reconstruct it. The foundation of the building is a supporting building structure and the safety of the entire structure as a whole directly depends on it, therefore it is so important to make repairs on time. This article provides one of the methods used in construction to strengthen the strip foundation by adding broadening plates.

Keywords: strip foundation, reconstruction, broadening plates, reinforcement of foundations, reinforcement, buttress

The problems of radiation hazard of nuclear medical facilities taking into account all stages of the life cycle are Considered. Substantiates the important role of the concrete biological shielding to ensure radiation and environmental safety of staff, patients, the public and the environment. The necessity of optimization of a choice of concrete biological shielding for radiation parameters. To justify the need and the possibility of optimizing the choice of the concrete biological shield, the results of computational studies of the activation characteristics of the three formulations of protective concrete, widely used for the construction of the canyons biological shielding of medical cyclotrons. The possibility of reducing the volumes of radioactive waste and their categories at the decommissioning stage is shown, which will ensure the reduction of financial costs for the disposal of radioactive waste during biological shielding dismantling. Scheduled tasks for further research.

Keywords: nuclear medicine, cyclotron, shielding concrete, induced activity, chemical composition, optimization, radioactive waste, life cycle, decommissioning

The results of studies of the dependence of the snow load and its security on the altitude above the sea level are presented on the basis of statistical data on the distribution of annual maximums of snow water equivalent obtained at 30 meteorological stations and mountain snow-measuring routes of the Krasnodar region and Adygea. Calculated relations are proposed for determining snow loads with arbitrary periods of one-time exceedance in the flat and mountain zones with altitudes up to 2000 m above sea level.

Keywords: snow load, security, distribution, annual maximums, mean recurrence interval, altitude above sea level

Made of a priori ranking factors allowing prediction of thermal protection of objects, represented a formalized scheme of the multifactor experiment, the effects of the determining factors for the thermal protection of the object with a different response function.

Keywords: energy saving, energy efficiency, thermal protection of buildings, multifactorial experiment, ranking factors

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

Modern construction industry is actively introducing new technologies and innovations in the field of high-rise buildings. This dictates certain requirements for the architectural and design features of the frameworks of buildings and the strengthening of foundations. It is necessary to give sufficient rigidity to the object in order to withstand external loads and impacts. All activities are aimed at ensuring the safety of people staying in a high-rise building. In recent decades, the construction of skyscrapers has increased, and such a notion as progressive collapse has become relevant. Therefore, the article examines and analyzes exactly progressive collapse as a problem requiring attention and a scientific approach to its elimination. The report concludes with some conclusions and recommendations.

Keywords: progressive collapse, high building, security, the scheme of the framework, local area, rigidity, stability, dampening, external load, oscillation process, deformation

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

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 is devoted to the question of the effectiveness of separate foundations. In particular, a specific version of the foundation with a modified geometry is considered - steps down. The foundation with a stepped sole has a greater bearing capacity and stability, as well as its device requires less labor, which makes it more efficient, analogs with a flat sole.

Keywords: foundation, construction, modified geometry, non-planar sole, soil mechanics, construction efficiency, earthworks, critical pressure

For implementation of the program of creation of additional places for children from two months to three years in the conditions of CBD the task on development of the minimum number of options of schemes of planning structures of blocks of nursery groups on the basis of which further development of standard projects for inclusion in the register of standard project documentation of Ministry of construction of Russia is planned is solved

Keywords: Keywords:blocks of nursery groups, planning decision, group cell, kindergarten

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

The paper presents the classification of the main causal aspects of the occurrence of catastrophes of large-span bridge structures, given with elements of the analysis of actual examples of the destruction of structures of various types. Also are described the innovative developments applicable in the field.

Keywords: fatigue failure, bridge, large-span bridge, failure of structures, destruction of bridge structures, accident in construction, resonance, wear, aerodynamics of bridge structures, stiffness beam, bolted joint

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

Technical progress makes humanity create new technologies and methods in all spheres of life. Evaluation of property also in there. In current moment there are several methods, which are badly obsolete. For example, there are some cases, when building in decrepit or emergency condition were able to buy in cost several times higher than objective cost. These cases aren't unique. New method of evaluation of property could possibly help if not to stop in all appearing of this cases but less their amount. New method is based on Building Information Model (BIM). This model allow take all needed information about building in the currnet moment of time and see in dynamic, how change different indicators of building. This system can be more useful if it associates some amount of building, which differs indicators of interest building and reflecting effects of that building on themselves. This technology can be looked as Extented BIM. Consideration of implementing BIM in evaluation of property has very perspective vay - this can accelerate the time building can be evaluated, and also it let potential client to see all information about building which he need. This makes process of purchase-sale of property more clear, which, by turn, help avoid conflicts when property being researched before purchasing.

Keywords: Building information model, Building, Evaluation of property, property, BIM, BIM-Technologies, Extented BIM, Using BIM, BIM-Modeling, BIM functions, BIM destination, BIM-model of building

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

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 article describes the methodological rationale and organization of the process of artistic design when creating an automated capture of pipe products. Show examples of constructive solutions of separate elements of capture.

Keywords: automatic capture, trumpet, artistic and design, methodology, rationale, option, shapes hook design

Article is devoted to acquaintance with methods which are used in the work by experts-builders when conducting construction technical expertizes of building constructions, buildings and a construction. The list of the main methods used in researches by the expert is provided and also each method is considered in more detail.

Keywords: Method, examination, expert, technique, fundamental principle, special case, graphic model, construction designs, construction technical expertize

The article describes the main advantages of the use of computer technology and information modeling for the design of energy-efficient buildings. The article deals with the advantages of the use of computer technology and information modeling for the design of energy-efficient buildings. The article also includes a description of the benefits that involves the use of BIM-technologies. The article deals with the problems that can be solved by using information modeling. In addition, the article describes the software products that implement the process of designing energy-efficient buildings. Also, the results achieved by domestic engineers are described. The functionality and usefulness of the method under consideration is unconditional. Many engineers agree that BIM modeling is the most accurate engineering tool to highlight the most energy-efficient processes. The use of BIM-technologies opens up additional opportunities to improve the economy of our country by introducing the method of energy-efficient design.

Keywords: energy efficiency, BM-technologies, energy modeling, design, construction, exploitation, digital programming, software, three-dimensional model of the building, pre-design stage.

The article presents an analysis of the effectiveness of the use in the construction of an automated building management system (ASUZ) as a technical basis for the implementation of the concept of a “smart”, “intelligent” building, and the prospects for using APSS to reduce the energy intensity of buildings are noted. Examples of the interaction of building engineering systems with urban facilities are considered. The authors noted the advantages of using and justified the relevance of the involvement of the automated system in the building management processes, identified reasons hindering the implementation of the Smart House technology in Russia.

Keywords: smart city, intelligent buildings, energy saving, automated building management system, energy efficient buildings, engineering systems, housing, smart home