The article is devoted to the issues of marketing costs evaluation in the construction project cost's management. The methods of determining the marketing cost in the construction sector within the specifics of the industry are issued.

Keywords: marketing costs, project cost management, methods of marketing costs estimation

This article describes the stages of implementing the program to solve the task of calculating the average response time of a distributed information processing system to user requests and an algorithm for the optimal distribution of information relations over the nodes of a distributed information processing system implemented on the basis of a file server architecture and a two-tier client server architecture, with and without locks. The procedure for constructing the initial data for modeling is described: the elements of the matrix of the initial distribution of information resources (relations) over the nodes of the distributed information processing system, the elements of the matrix of information interrelation between the requests of users of the distributed information processing system and the information resources themselves, the elements of the matrix of probabilities for generating queries by users. A procedure has been developed and programmed to significantly simplify the calculation of the normalizing constant, and accordingly the average response time of the system to user requests. The results of numerical experiments are presented

Keywords: Distributed information processing system, file-server architecture, two-level client-server architecture, nonlinear combinatorial optimization, generator of equiprobable choice, Jordan-Gauss method, normalized constant, average reaction time of the syste

The experience of applying centrifugation as a molding and compacting method has opened new prospects for the production of highly efficient reinforced concrete products. The experience of production of centrifuged power line supports at one of the enterprises of the Socialist Republic of Vietnam is analyzed. The studies aimed at studying the change in the composition of the mixture during centrifugation and the kinetics of the strength of centrifuged concrete were carried out. The dependence of the ultimate strength of centrifuged concrete on compression on the value of B / W after HMT (heat and moisture treatment) and at the age of 3-7 days was studied. Conclusions are made on the correction of the known quantitative regularities of the change in the strength of vibrating concrete from the value of B / W and the porosity, taking into account the heterogeneity of the structure of the centrifuged concrete over the cross section.

Keywords: centrifugation, heavy concrete, concrete mixture, power line supports, additives to concrete, enterprises for the production of reinforced concrete products

A constructive solution of the walls of wooden houses from round logs or a profiled beam, which is installed vertically (wooden element) is considered. It is proposed to arrange two longitudinal milled grooves of a rectangular shape located in the diametral plane of the section of the log for the installation of sheet plywood keys, which makes it possible to include in the joint work adjacent contiguous elements when working on bending from the plane of the wall. The variant of the strapping device, it is proposed to use metal rolling profiles of Channel and I-sections, connected with metal tube elements (box section) mounted in the corners of the frame.

Keywords: round log, profiled beam, sheet plywood keys, tubular section elements

This article identifies the problem of a modern heating system, which consists in the drop in pressure at specific sites, which lead to a decrease in thermal performance. For practical research, a scheme has been developed whose purpose is to determine the hydraulic losses in 2 sections, with reinforcement mounted on them, which have a certain coefficient of resistance. The basis for the calculation is the method of specific pressure loss.

Keywords: hydraulic resistance, heating system, pressure loss, local resistance

The evolution of organizational and technological methods of construction of public buildings during the Russian middle Ages from aesthetic, economic and socio-political aspects is studied. This paper examines the impact of the economic component of the state on the possibility of construction of the building, its carrying capacity. The a priori necessity of construction of religious building in the Middle ages even in the conditions of permanent economic crisis is proved

Keywords: organization of construction; construction economics, history of architecture, history of the construction industry

The problem of improving the efficiency of construction through the use of advanced methods of labor organization is studied. Proposed improvement works by reducing, modernization of production

Keywords: organization of construction; operational reliability of buildings; efficiency of labor organization

In the article features of work of monolithic overlap on the profiled flooring, leaning against steel I-beams, reinforced by pre-stressed bar reinforcement are considered. Often, when changing the functional purpose of a building or redevelopment, strengthening the structure of the floor is required to ensure strength. In addition, at spans of more than 7 meters, deflections exceeding the limit values may develop, which lead to a decrease in reliability and durability, and a deterioration in the appearance of the overlappings. The purpose of this study is to find the optimum reinforcement of the floor beams. To strengthen the proposed installation of prestressed reinforcement in the lower girdle of the beam, which increases the strength and reduces the deflections of the beams. In such ceilings, the bending moment from external loads is distributed between the structural elements: the beam and the reinforced concrete overlap, in accordance with the ratio of the stiffnesses of these components. As a result of the study, the optimal diameters of prestressed reinforcement for steel beams by spans from 6 to 9 m were determined and for the calculated linear load from 5 to 30 kN/m. The proposed reinforcement option allows to increase bearing capacity, reduce deflections, reduce labor costs for building reconstruction, and also increase the reliability and durability of the structure.

Keywords: reinforced concrete floor, gain, prestressed reinforcement, I-beams, overlap on profiled flooring

New construction materials and products require research aimed at eliminating design and usage difficulties associated with the lack of regulatory documentation. In this article, an attempt is made to extend the effect of domestic standards on new types of sheet materials and types of nails used in wooden frame housing.

Keywords: wooden structures, nagel, wooden panels, wooden layered diaphragms, nailing connections, light frame house building

eliability, construction processes, duration, mechanized work, manual work, probability, distribution, accumulated probability curve, sampling interval.increase of reliability of calculation of the design value of duration of production of the construction works performed manually. The importance of increasing the reliability of determining the design value of the duration of works for manual construction processes is emphasized

Keywords: eliability, construction processes, duration, mechanized work, manual work, probability, distribution, accumulated probability curve, sampling interval.increase of reliability of calculation of the design value of duration of production of the constructio

The progressive destruction has enormous economic and social consequences. The problem of finding the optimal way to protect high-rise buildings from the development of a chain of avalanche-like destruction process has become of great importance due to the increase in the height of such buildings. In this work the method of protection of buildings from progressive destruction at which the technology of amplification by means of weights and built-in power frameworks is used is investigated.

Keywords: Progressive destruction, protection of multi-storey buildings, combined reinforcement, strands, built-in power frames

Studied the possibility of disposing of chromium waste galvanic production, their use in the manufacture of ceramic products and production of building materials based on hydraulic binders. The plasticizing effect of galvanizing is revealed and it is established that at use of slurries in the form of additives in concrete and solutions leads to decrease in consumption of cement at equal durability.

Keywords: electroplating sludge, industrial waste, chromium-containing waste, recycling, concrete additive, plasticizing effect

Short data on efficiency of a fibrobeton on the basis of heavy quartz sand are provided in work. Taking into account existence of huge reserves of natural porous fillers (the tufa, pumice, pummitsit, etc.) in various regions of Russia and also the fillers received on the basis of industry waste the relevance of a research of a stalefibrobeton with easily concrete matrixes is proved. Experimental selection of optimum composition of concrete on the basis of tuff filler of the Kamensk field of Kabardino-Balkar Republic regarding his use as a matrix of a stalefibrotufobeton (SFTB) is executed . The picked-up structure has been used for creation of skilled combined and monolithic samples of beams which should be tested. During formation of beams control samples of a stalefibrotufobeton have been selected and tested. Results of tests of control samples for compression, stretching and a bend demonstrate that fiber reinforcing exerts significant positive effect on strength and deformativny properties of a tufobeton. Data of experimental research confirm a possibility of using tufobeton in the stalefibrobetonnykh designs.

Keywords: Stalefibrotufobeton, steel fiber, matrix, volume percent of fiber reinforcing, stretching, compression, bend, dynamic influences, zone placement

The necessity to take into account external influences from natural and climatic factors - rain, snow, saline solutions, alternating temperatures, as well as internal influences from the changing parameters of the microclimate of premises, during the operation of buildings is determined. It is shown that the capillary-porous structure of the materials of the enclosing structures (ES) contributes to the development of a number of negative processes as a result of capillary condensation, which reduce the heat-shielding and operational properties of the materials of the ES. The negative changes in the materials of ES due to capillary condensation under the influence of external and internal factors are generalized. The possibilities for reducing the negative influence of capillary condensation due to regulation of the microclimate parameters of the premises are revealed. Directions of hydrophobization of ES materials for protection against capillary condensation at external influences are established.

Keywords: enclosing structure, energy efficiency, heat protection, capillary-porous structure, capillary condensation, natural and climatic factors, microclimate, heat and moisture regime, crack formation, hydrophobization

Автором проведено исследование планировочных решений индивидуального жилого дома, способов возведения, строительных материалов и инженерных систем в городах провинции Анбар с конце XIX до начала XXI вв. Формирование и значимость архитектурных решений индивидуального жилого дома в провинции Анбар в Ираке обусловлены требованиями религии, традиции и менталитета. С середины ХХ в. до начала ХХI вв. на формирование архитектуры индивидуального жилого дома оказывают существенное влияние также современные строительные материалы и научно-технический прогресс. Раскрыто проявление результатов данных факторов в изменении жилища и развитии его пространственной структуры в направлении от закрытой атриумной планировки дома к открытому отдельно стоящему дому, окруженному ограждением.

Keywords: architecture, dwelling, planning, Arab house, construction, Anbar province and Iraq

"he article gives a technical and economic comparison of the calculation results for two grades of steel VSt3ps4 and 16G2AF. The features of steel grades are analyzed. The comparison of the weight and cost of belts of curved rafter trusses is given. The results show that the use of increased strength in the steel structures under investigation is not only less metal-consuming, but also more economical. Despite the fact that the cost of 16G2AF steel pipes is 25% higher than the cost of Bst3pc4 steel pipes, a total cost saving of belts of 28% was obtained. This is explained by the significantly lower weight of belts made of 16G2AF steel. This research is relevant in that the result of the work done demonstrates which mark has become more appropriate to choose for large span farms in the design. The above engineering calculations confirm that the use of steel 16G2AF for metal curvilinear trusses, 48m flight is more economically advantageous. The weight of the belts for 16G2AF steel is almost half that of VST3PS4. As a result, the analysis of the performed calculations allows us to draw the following conclusions: Due to the fact that the design resistance Ry of steel 16G2AF is 67% higher than the design resistance of steel VSt3ps4, the metal savings due to the reduction of the cross-sectional area of the belts in the amount of 47% were obtained.

Keywords: curved truss, technical and economic comparison, steel grade, high-strength steel

The results of a survey of the technical condition of the buildings included in the list of objects of the cultural heritage of the Rostov Region are analyzed. Identified features of the foundations of buildings built in the middle of the XIX - early XX centuries. Recommendations are given on the preliminary assessment of the scope of work on the technical survey of foundations and foundations, as well as restorations for similar buildings constructed in the specified period

Keywords: objects of cultural heritage, bases, foundations, inspection of the technical condition of buildings

Article is devoted geodetic researches, as the most important at designing of highways and airdromes. The complexes of works made at researches and designing are considered. Importance of topographical shooting of district by geodesists for creation of new cards, in the absence of cards, plans in contemporary records is noted. The special attention in article is given the modern geodetic equipment, such as: electronic recording tacheometer, GPS - antenna, and the 3D- scanner. These devices, their versions, scopes are in detail considered. The purposes and problems GPS of measurements, and also methods of work GPS of receivers are considered. In article- geodetic maintenance at building of elements of an airfield is in more details considered. Kinds of the works, which are carried out by geodesists, are designated. It is noticed that use of the modern equipment and software product AutoCAD, AutoCAD Civil 3D, CREDO, GENERAL PLAN Geonics, etc. To analogues of these software allows to save not only time for processing of field measurements, but also to carry out continuous control of a thickness of separate layers at packing that, in turn, leads to economy of means. In the conclusion authors underline special importance and responsibility assigned to geodetic service. It is noticed that introduction of the innovative equipment in all structures of road building will undoubtedly set good rate in development of a network of highways and airdromes.

Keywords: Geodetic researches, highway, electronic recording tacheometer, GPS - antenna, laser 3D - the scanner, topographical shooting, airdrome, aerial photography

article is devoted to a question of calculation of non-stationary temperatures in cracks of residential buildings with application of numerical methods. Special attention is paid to the causes of cracks in the houses which are in the earned additionally territories of the miner's cities. By means of the program and element system of numerical modeling ANSYS the picture of distribution of cracks on a building facade is shown. The analytical method of calculation of non-stationary air temperatures consisting in application of projective methods of Galerkin is developed for cracks. Establishment of a profile of temperature and speed of air was result of a research on the basis of what it is possible to draw a conclusion that in the presence of cracks in external walls of buildings considerable indignations of the temperature field which are localized near a crack take place, and the sizes of area of distortion are defined by the sizes of the crack.

Keywords: nonstationary temperatures, numerical modeling, crack, uneven sediment, convection, thermal inertia, thermal conductivity, temperature profile, Galerkin method, dimensionless temperature

The article is devoted to the reduction of steel consumption in the compressed zone of reinforced concrete elements. Special attention is paid to the combined prestressing, in which the armature of the stretched zone is subjected to prestressing, and compressed – prestressing. The combined prestressing allows to reduce the steel consumption, and also to increase the performance of many technical characteristics by increasing the limit stresses in the high-strength reinforcement of the compressed and stretched zones

Keywords: the combined prestressing, compressed area, consumption of steel compressed fittings

The main maintenance of a diversification of production as activity of subjects of managing is considered. being shown in purchase of the operating enterprises, the organizations of the new enterprises, redistribution of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

Keywords: algorithmic design, generative design, digital method, parametrism, object genome, script, Grasshopper plugin, self-regulation, modeling tools, simulation, optimization process

The article deals with the mechanical and mathematical model of deformation and development of zones of plastic deformations in landslide slopes under static and dynamic influence taking into account physical and geometrical nonlinearity.

Keywords: landslide slope, plastic deformation zone, dynamic impact, physical nonlinearity, geometric nonlinearity, stress deviator, stress tensor, deformation of the soil medium

In the article results of the analysis of analytical dependences and results of the computing experiment executed in Lyr-CAD environment are considered. The purpose of the performed work is a quantitative assessment of the reduction in strength of beams of monolithic reinforced concrete overlappings caused by errors made during the performance of reinforcement work. In particular, an increase in the thickness of the protective layer of concrete and the consequent reduction in the working height of the section are considered. The data analyzed for both reference and span cross sections are analyzed. In total, four series of samples were selected, differing in the class of concrete (B15, B20, B25 and B30). Each series consisted of 9 samples having different working height sections in the reference and span sections. The working height of the section varied from 5 to 22%. The finite element model was created in the LIRA-CAD environment. In the course of the analysis, the effect of changing the working height of the section on the area of ​​the reference and passing reinforcement, selected for strength, was investigated.

Keywords: It is established that the degree of influence of the deviations of the position of the reinforcement from the design in the reference sections and in the span is different. The greatest danger is represented by the support sections, that is, the overlapp

The optimum coefficients for the use of materials for combined beams in a wide range of loads are obtained in the article. The principles of designing and calculating the strength of Steel Reinforced Concrete slabs are outlined in accordance with SR 266.1325800.2016 ""Steel Reinforced Concrete Structures. Design rules"". Strength calculations are performed, the results of a numerical experiment are compared and analyzed. The optimal utilization factor of materials obtained in accordance with the specified regulatory document was established. The results obtained can be used in the design of combined beams of different cross-sections and spans. The purpose of this study is to find the optimum reinforcement of the floor beams. To strengthen the proposed installation of prestressed reinforcement in the lower girdle of the beam, which increases the strength and reduces the deflections of the beams. In such ceilings, the bending moment from external loads is distributed between the structural elements: the beam and the reinforced concrete overlap, in accordance with the ratio of the stiffnesses of these components. As a result of the study, the optimal diameters of prestressed reinforcement for steel beams by spans from 6 to 9 m were determined and for the calculated linear load from 5 to 30 kN/m. The proposed reinforcement option allows to increase bearing capacity, reduce deflections, reduce labor costs for building reconstruction, and also increase the reliability and durability of the structure.

Keywords: Steel reinforced concrete, floors, combined beams, profiled sheet, coefficient of use of materials

The possibility of using an additive based on amorphous aluminosilicates in the formulation of calcareous dry construction mixtures as a modifying additive that increases the thermal insulation properties of the solution based on the mixture being developed is investigated. Several compositions of an aluminosilicate additive with different proportions of raw components have been considered. For determine the optimum mode of synthesis of the test additive, special attention was paid to the change in the porosity and compressive strength of the calcareous composite. Optimum content of aluminosilicate additive in the composition of calcareous composite was selected. The degree of influence of the magnitude of the liquid glass module used in the production of the aluminosilicate additive on the change in the strength of the calcareous composite with the use of a modifying additive was evaluated. The change in the strength, density, and porosity of a calcareous composite was studied in the presence of the additive being developed, depending on the temperature regime and the duration of the synthesis of amorphous aluminosilicates. It has been established that the temperature and heat treatment time of the aluminosilicate additive does not significantly affect the density of the cement composite. It was also found that the use of an additive based on amorphous aluminosilicates in the composition of calcareous dry construction mixtures leads to an increase in the porosity of the samples as compared to the control samples (without additive).

Keywords: amorphous aluminosilicates, dry building mixtures, lime, strength, synthesis, modifying additives, analysis