The article substantiates the need to design and build low-rise economy class residential buildings for the successful implementation of the resettlement program from dilapidated and dilapidated housing. Architectural and planning solutions of different types of low-rise apartment houses of economy class for construction on the territory of the Kabardino-Balkarian Republic.

Keywords: Residential building, economy class, attic, dilapidated housing, emergency housing, comfortable housing, affordable housing, a blockaded house

Obtained in the course of work the results show that the heat loss through fasteners ventilated facade is 40.5% of the total heat loss through the outer face of the facade. Using the data obtained for the evaluation of the heat losses of a 7 - storey residential building in the city of Nalchik, with a total area of external walling 2.470 sq. m. found that at a temperature difference of 39°C for 1 hour in the wall is the thermal energy in the amount of 57 kW«h, including 23.1 kW«h refer to the heat loss via the fastening elements of the facade panels, for 24 hours through heat-conducting inclusions is lost 554.4 kW«h For 7 months of the heating period with an average temperature of 28°C the heat loss will be 83745.7 kW«h Taking the cost of 1 kW«h of electricity 3.47 RUB and assess the rate of heat loss through the frame of a ventilated facade in cash for the entire heating period, will receive additional heat loss through the frame of a ventilated facade cost 290597 RUB.

Keywords: temperature field, heat-conducting inclusions, ventilated facade, heat, heat flux, fasteners

The article describes the main principles of the movement around the circumference of the cranes circular steps. It is proved that the defining characteristics of the organization of the movement of the crane on the circle are the geometric parameters of the mutual reversal of the running wheels of the crane, not the observance of the reversal determines the transverse slippage of wheels of the crane, and the shape of the wheels depends only on the elastic longitudinal slide. The result of slides and slippage is firing the head of the rail with one hand and the loss of stability when moving the crane. Stability stability ensures the achievement of the precision targeting of the gripping device. These parameters are the main performance characteristics that should be valued in absolute terms should be minimal.

Keywords: nuclear power station, crane circular steps, suspension bridge crane, suspension wheel, cylindrical wheel, bevel wheel, the mutual reversal of wheels

In the article the results of reinforcement of monolithic reinforced concrete slab bezbalochnyh, different parameters of a finite element mesh, under other equal characteristics. Of course cell model was created by means of PC SAPPHIRE with subsequent transfer of analytical model in LIRA-CAD when creating analytical models used three variants of triangulation, namely: rectangular, triangular and adaptive step triangulation ranged over a wide range-from 1/6 up to 1/30 span. Bearing slabs at columns was carried out on two variants : using an absolutely rigid body and without it. The subject analysis of selected area of the upper longitudinal bearing fittings. During the analysis process was investigated the influence of automatic finite element mesh triangulation on anchor square fittings. Found that in all cases an increase in triangulation step reduces the required for calculating the square top of the longitudinal reinforcement. This reduction may reach 85%, and in case of insufficient quality control finite element mesh is going to cause a serious error in the calculation. When automatically generating a mesh leaf size can significantly exceed step triangulation. All meshes with the zone of transition from AGT to the plate in the form of triangles effect is observed the increase required for calculating reinforcement as you go further away from the brink of columns, that in our view it is illogical. Practical value as the most simple way, has the option of split slabs into rectangular finite elements with a size equal to or slightly greater than the section of the column. without the use of absolute hard bodies.

Keywords: monolithic frame, non-beam overlapping, triangulation, selection of reinforcement, design calculation, PC SAPPHIRE, PC LIRA-CAD

Study the main situation of Russian and foreign codes are considered, inadequate elaboration of the problem structural analysis of the progressive collapse, conclusions are draw on the basis of analysis of the available literature.

Keywords: Progressive collapse, steel constructions, codes, standarts, structural analysis of the progressive collapse, structural failure

Issues related to the safe operation of the transport system as a whole. The article touches upon the questions on how to repair the car in Volgograd. In the city, this guide is the only link in the area. Long-term operation of the overpass led to the accumulation of a large number of defects and damages that prevented it from being fully used. Accounting for all aspects of the safe use of the way to ensure its sustainable functioning. The measures ensuring the safe operation of transport facilities include: increasing the dimensions of the roadway of the overpass, strengthening structures to increase the carrying capacity to normative work, processing and storing seismic precipitation on the span, installing a video camera for rapid response in case of traffic accidents and illegal actions. To increase the load-bearing structures, the new beams should be replaced with new beams, designed for high loads, and also use composite reinforcement with carbon fiber.

Keywords: safety, load-carrying capacity, reconstruction, bridges, sustainable functioning, reinforcement, diagnostics of structures, waterproofing

This article deals with the problem of coping with changing climate environment in houses and close ties with wear and tear of buildings. The authors analyze the state of housing stock in town Shakhty and perspectives of improving people’s life quality. For this purpose, a number of full-scale studies were carried out to analyze defects of enclosing structures to prove that they are significantly connected with temperature environment of living quarters. To regulate the basic parameters, the authors choose an integrated monitoring system allowing the researchers to determine a special approach to assessing the buildings’ structure states based on joint result of examining building structure states and air environment.

Keywords: energy-savings, housing stock, wear, controlled environment, enclosing, temperature distribution, housing and communal sector

Shows the process of reconstruction of a beam-type bridge. As a result of the bridge inspection obtained the stiffness characteristics of load-bearing structures. The planned characteristics after the reconstruction are presented. Nodal connections of elements with each other are described. The choice of the calculation scheme of the construction is explained. The design solution is described in detail.

Keywords: reconstruction, beam, bridge, inspection, reinforced concrete structures

Study of stress-strain state of the construction using the Finite Difference Method. Obtained the matrix of coefficients of resolving equations. To assess the convergence of the calculation results were compared with the known numerical solutions.

Keywords: the Finite Difference Method, diagrams of moments, Fixed Offshore Platforms, linear displacement, deflection, thin plates

The results of research on the parametric optimization of a trapezoidal wooden truss with ascending braces on metal toothed plates are presented. A deterministic algorithm is developed and a program is developed that allows finding optimal farm parameters from the condition of minimizing the volume of wood, given the initial conditions. The optimum parameters for the farm span of 24 meters were determined for a given value of the external load, diagrams of the dependence of the objective function on the variable parameters.

Keywords: Parametric optimization, deterministic algorithm, metal toothed plate, trapezoidal farm with ascending bracing

The results of large-scale field experiments to study the interaction of the bases with different shapes and sizes of the protrusions at the bottom with an inhomogeneous loess foundation . It is shown that the protrusion at the base of a significant effect on the VAT base .

Keywords: foundation , stress, strain , stamp , eccentricity , mean pressure

In the article the main types of corrosion of concrete, such as chloride, sulfate, acid and carbon dioxide, are considered, the mechanism of cement stone damage is given. The danger of leaching of concrete is shown. Protection of bridges from penetration of aggressive moisture is waterproofing. Materials used for the device of waterproofing in our country are given, their advantages and disadvantages.

Keywords: Waterproofing bridges, carbon dioxide corrosion, chloride corrosion, acid corrosion, concrete leaching, waterproofing materials, adhesion

the article presents the study in the control of the geometric parameters of wheels of cranes circular steps. The options considered to determine the radii of the wheels by indirect methods, of which the most effective are those based on the construction of the measuring triangle at the open part of the forming. As the final results and proposals noted the following: both control provide almost ravnovesnye results definitions of the geometric parameters of the wheels; more universal is the way to control the radius of the wheel, using calipers and this method is recommended when addressing these and similar problems.

Keywords: Running wheels, geometrical parameters of wheels, crane of circular action, wheel radius, wheel cone corner

V stat'e rassmatrivajutsja problemy zhelezobetonnyh proletnyh stroenij dlinoj menee 35m. provoditsja analiz otechestvennyh i zarubezhnyh balok proletnyh stroenij, pri analize uchityvajutsja takie harakteristiki balok kak, ves konstrukcii, mezhremontnyj srok sluzhby proljotnyh stroenij, rastjagivajushhie naprjazhenija, vosprinimaemaja nagruzka, dolgovechnost', sul'fatostojkost' balki.

Keywords: tipovoe proektirovanie, balki, zhelezobetonnye konstrukcii, proljotnye stroenija mostov, tipovoj proekt, ramno-nerazreznoj, mosty, nagruzka, mezhremontnyj srok, prochnost', dolgovechnost

The review of the existing technologies of producing and experience in implementing in the Russia and other countries of the FRP shells of gas exhaust trunks was made. The main results of the development of new technology of producing of FRP shells are described. The main prospective area of using of this technology, is the reconstruction of the tall chimneys with the erection of inner liner from the FRP shells.

Keywords: chimneys, gas flues, gas exhaust trunks, polymer composite materials, fiber reinforced plastic, winding

Examines the factors affecting the rate of reproduction and the efficiency of interaction of micro-algae for example Chlorella in polluted waters in order to clean them. Grounded energy and economic efficiency of using sunlight to intensify the process of cultivation of Chlorella.

Keywords: microalgae, Chlorella, energy efficiency, water treatment, lighting, aeroblast, biomass

The FRP sandwich shells produced by the filament winding for gas exhaust trunks are described. The main types of the cores and the specific features of the winding of the sandwich shells are described. The mechanical characteristics for the some types of cores was given, they can be used for the design of constructions.

Keywords: chimneys, gas flues, gas exhaust trunks, polymer composite materials, fiber reinforced plastic, winding

The purpose of the project: the creation of a multifunctional center, giving the people of this time to imagine the stage of development of culture and art in wartime and post-war time, to feel like members of the Great Victory. As a tribute to the fighting on the Blue Line, as a reminder of the exploits of our pilots in the sky of Kuban, the building is shaped center of military aircraft of the Second World War.

Keywords: Constructivism, architectural appearance, the blue line, the fuselage, multi-center, innovation, inversion roof, World War II, a function block, a wind tunnel

The results of analysis of regulatory requirements for dust collection systems based on existing environmental legislation. Development of systems for dust collection and dust extractor is using the tools of quality management. It has established a set of basic technical requirements for systems of dust removal and their parts taking into account modern requirements for energy efficiency.

Keywords: ecology, environmental regulations, dust collection, air quality management, dust collectors, energy efficiency

Разработан вариант рационального проектного решения торгового комплекса «Золотой» в г. Ростове-на-Дону путем замены конструкции покрытия для увеличения шага колонн 2 этажа. Исследование напряженно-деформированного состояние элементов каркаса здания методом конечных элементов. Для оптимизации проектных решений здания торгового комплекса выполнен сравнительный расчет конструктивных схем структурных покрытий типов «Кисловодск» и «БрГТУ». Даны рекомендации по конструктивным решениям покрытия каркаса здания.

Keywords: finite element method, finite element, structural coverage, the design load combination, section, design scheme

Effective use of high-strength reinforcement in concrete structures - an important task today. Studies of Russian and foreign scientists have shown that the most expedient are combination of prestressed and untensioned reinforcement in section. When designing the compressed concrete elements with prestressed reinforcement should strive to reduce the amount of pre-tension reinforcement in columns, on the contrary, to increase the pre-compressed in short elements. In elements with pre-compressed steel, untensioned reinforcement is needed, because it provides improving crack resistance during transmission technology process tensile stresses on the concrete and untensioned reinforcement. The percentage of this reinforcement should be the minimum necessary to achieve the required cracking resistance. Minimal amount of pre-tension reinforcement adopted at the level of prestressing (usually the highest) should be taken of the conditions provide the desired crack resistance and rigidness. Later in the article describes main principles the calculation minimum number of prestressed reinforcement in reinforced concrete elements to the presentation requirements of the first, second and third categories crack resistance.

Keywords: concrete, reinforcement, steel, reinforced concrete, prestressing, crack resistance, rigidity, bearing capacity, deformation

Treatment methods of roadway covering with deicing product, including salt, reducing winter slipperiness, do not provide traffic safety at unpredictable drops in air temperature. Surface distribution of sleetproof materials covering pollutes the environment to a large degree and increases corrosive attack to metal parts of the car. The solution to this problem is the use of asphalt-concrete mixes with deicing properties.

Keywords: Stone-mastiphiс asphalt, SMA, icing additive, сoated ice adhesion, stabilizing additives, test lottman, national standart

The following article deals with the survey techniques of sustainability properties of metal structures by destructive and non-destructive methods.

Keywords: "examination, strength, diagnosis, mechanical properties, nondestructive testing, pipe sheet pile design "

The article presents a new design of reinforced concrete I-beam coverage with prestressed reinforcement, in which the ribs are stretched zone side ledges. This solution allows you to pick off high-strength prestressed reinforcement along the length of the element, thus increasing the ratio of reinforcement used in comparison with a standard solution

Keywords: reinforced concrete beam is equal to the resistance of prestressed reinforcement, combined prestressing

We have reviewed several Russian cities masterplans between 2012 and 2016, a total of 4 plans focusing on two aspects – energy consumption and district heating networks. Where possible, load management and controls usage have been added to the study, but it should be noted that development on the cities shown on the plans is subject to uncertainty due to lack of load clarity. Self-acting controls have a sensor filled with a substance which changes its volume as the temperature changes. The volume change is transmitted through a capillary tube to an adjusting device placed on a control valve. The adjusting device contains a bellows, and when the bellows changes in volume - expands or contracts - this motion is transferred to the cone in the valve. Self-acting controls are well suited to keep the flow temperature of the domestic hot water or the ventilating air at a constant level. In heating systems, the secondary flow temperature is controlled according to the outdoor temperature via an electronic control station complete with a sensor a weather compensator. As a rule the control valve is placed on the primary side. The temperature on outgoing domestic hot water is controlled in the same way.

Keywords: District heating, heat supply, distribution, thermal, energy, residential, heat exchanger, consumer substation, connection, scheme.