The uniqueness of restoration projects requires a transition from traditional to modern approaches. Building Information Modeling (BIM) is considered one of the most reliable approaches in construction, but after a review of domestic and foreign studies, it turned out that there are no studies on the use of BIM in organizing the restoration process of war-torn territories. The article discusses the application of BIM and visual programming (Dynamo) at all stages of restoration projects. In addition, the article presents a way to automatically create calendar plans using the program (MS project) and a way to automatically create 4D, 5D models using the program (Navisworks). The article also explains how recovery models can be used in the execution tracking process.

Keywords: building information modeling, visual programming, post-conflict recovery, scheduling automation, 4D

he article considers a plane problem of calculating the interaction of a culvert of different outlines with a soil embarckment, taking into account the constructive nonlinearity. Due to the impossibility of the soil to work in tension, the interaction of the pipe and soil is assumed to be uniulateral. In the problem, the outline of the pipe is changed, other parameters being equal. As the results of the calculation, the area of contact / separation and adhesion / slippage of the pipe with the soil is considered. Based on the results of calculations, recommendations are given for choosing the outline of culverts.

Keywords: constructive nonlinearity, frictional contact, unilateral constraints, linear complementarity problem, numerical models, finite element method

On the example of the beams, the dynamics of systems with unilateral constraints are considered. The algorithm for calculating such systems as a combination of the step method of Newmark and the Lemke algorithm that determines the work scheme of the beam in each time step is proposed. Model tasks are considered with a harmonic exciting force, suddenly applied force, impulse exposure. The numerical convergence of the solution was investigated during the thickening of the temporary grid. It is shown that the accuracy of the solution significantly depends on the determination of the moment of changing the working schemes, since the error of the solution increases with an increase in the events “inclusion/off” of unilateral constraints.

Keywords: constructive nonlinearity, unilateral constraints, linear complementary problem, Lemke's algorithm, structural dynamics, Newmark's method

The article discusses the possibility of using the ANSYS WORKBENCH software package to calculate the uneven settlement of building foundations. The heterogeneity of the physical and mechanical properties of the soil, the difference in the thickness of the bearing layer and other factors lead to uneven development of settlement. This causes the appearance of cracks in the supporting structures, and in the worst case, the destruction of part of the building or the building as a whole. Methods for calculating settlements are very complex, but using the capabilities of modern computers and computer simulation programs makes it possible to obtain a simple and accurate solution to such problems. To evaluate the deformations of the foundation on heterogeneous soils the ANSYS software package was be used. The proposed method can be used to quantify the uneven settlement of the foundations of real buildings and structures.

Keywords: ANSYS WORKBENCH, foundation, uneven settlement, skew, computer modeling, deformation, finite element method

Studies of a circular cylindrical mesh shell with additional rods and increased rigidity of the supporting ribs were carried out. As part of the search for the optimal design, the criterion of rational material consumption was used. According to the results of the conducted studies, the regularities of the distribution of force factors and deformation parameters were revealed. An assessment of the degree of activity of the work and vulnerability to deformations was carried out. Dangerous areas of surfaces are analyzed, mosaics of forces and displacements are obtained. The contribution of reinforcing elements is determined and the influence of the stiffness of the supporting ribs is revealed. A significant unloading of the spatial structure was achieved and a high level of impact resistance was recorded. A significant decrease in calculated indicators was obtained.

Keywords: cylindrical mesh shell, reinforcement with rods, stiffness of support ribs, optimization, forces, displacements, material consumption

A review of studies of photovoltaic chromatic devices for regulating the transparency of glass and simultaneous generation of electrical energy through an internal photoelectric effect is given. Devices based on thin-film heterostructures with kesterite as a photocell are considered in detail. Kesterite is an absorbing material consisting of copper, tin, zinc, sulfur and selenium, a new promising material for creating "smart" glazing with adjustable transparency. The energy characteristics of coatings based on kesterite are compared with coatings of other types. The prospects of kesterite as a basis for creating effective autonomous photovoltaic windows of adjustable transparency are shown.

Keywords: photoelectric effect, transparency, glass, kesterite, perovskite, silicon, window, energy efficiency, electrochromic effect

A new building structure is proposed - a welded steel I-beam with a prestressed perforated wall. The prestress in the beam is created by stretching the web and subsequent welding with chords. Before prestressing, holes are cut in the wall. Using the LIRA-SAPR software package, a model is proposed that can be used to study the operation of a prestressed perforated beam (PNPB) structure. The influence of various forms of voids in the wall on the change in the stress-strain state of steel I-beams prestressed by the wall drawing is studied. A preliminary assessment was made of the favorable effect of prestressing in a conventional perforated beam on the stress-strain state of beams with different forms of perforations in the web.

Keywords: steel structures, prestressing, numerical experiment, normal and shear stresses, bearing capacity

Based on the need to develop the transport network between the regions of Syria, to support the development process, first of all, it was necessary to evaluate the efficiency of the existing network, the degree of its connectivity, the centralization of its nodes and the efficiency of access to it, in order to propose new axes of transport and development that improve the efficiency of the transport network. Summary mathematical indicators of the proposed solution are given on the basis of graph theory and Dijkstra's algorithm, as well as other indicators, in addition to the works of N.A. Ermoshin and K.L. Komarov, which emphasize the priority of construction of motor roads and public road facilities of regional and intermunicipal significance, taking into account the socially significant economic effect. The obtained results confirmed the need to develop the transportation framework of Syria to increase the level of connectivity between its regions.

Keywords: regional planning, development, Syrian desert region, transportation framework, accessibility, graph theory, Dijkstra's algorithm

The problem of quality in construction and installation works at intermediate stages is being discussed. The role of technical supervision in the construction process is outlined. A proposed indicator, the "Quality Index," is presented for consideration, which reflects not only the quality of the works but also the effectiveness of the technical supervisor's work during the construction process.

Keywords: quality, construction quality, construction quality index, quality coefficient, regulations, technical supervisor engineer

Repair and restoration binders and compositions based on them are needed primarily for the repair, restoration and restoration of cultural heritage sites both in the Russian Federation and abroad. They are subject to special requirements, so the conduct of related engineering and survey, research and development work is an important condition for the development of modern scientifically verified, practically tested and in demand in practice repair and restoration materials. One of the main conditions for the practical implementation of the proposed investment project is the presence of a mineral resource base in the region and the country. The resource potential of carbonate, halogen and clayey rocks is fully represented in the mountainous part of the Chechen Republic (CR). Based on the results of research and prospecting work on the territory of the Czech Republic, 6 forecast areas have been identified that are promising for the identification of deposits of carbonate, halogen and clay raw materials, mainly as lime, cement and multi-purpose. The work uses methods of analytical research and scientific generalizations, expert assessments, process modeling and system analysis. The classification of inorganic binders was performed, which for the first time included organic-inorganic binders and additives in repair and restoration binders and compositions. As a result of exploratory research, it was proposed to repair, restore and restore historical and cultural monuments using the ones developed at the Kh.I. Ibragimov RAS of modern technologies and materials for repair and restoration work. To assess and correct the scientific problem associated with the development of repair and restoration binders and repair and restoration compositions, a review of historical experience was made. A concept for the development of a new scientific direction "High-strength composite materials based on lime (hydraulic and hydrate), gypsum (gypsum and anhydrite) and magnesia binders for the repair and restoration of cultural heritage sites" has been developed.

Keywords: repair and restoration binders, repair and restoration compositions, hydraulic lime, hydrated lime, gypsum, anhydrite, dolomite, magnesian binders, carbonization, decarbonization, carbonate raw materials, cement raw materials, clays, limestones

The paper presents the study of the effect of multiple cyclic humidification on the compressive strength across the grain edgewise of laminated veneer lumber (LVL), long-term sustained in conditions with high humidity. A significant decrease in its strength properties during cyclic humidification (up to 18% in three cycles) has been proved. The dynamics of crack growth due to the influence of the humidity factor is given.

Keywords: laminated veneer lumber, timber structures, strength, cyclic dampening, drying cracks, hygrostalness

The purpose of author's researches - assessment of level of pollution by fine particles (PM10, PM5, PM2.5, PM1, PM0.5) of atmospheric air in territories of parks in Volgograd. Due to the fact that the parks operate year-round, research was carried out in the winter, spring-autumn and summer periods of the year. Research, in particular, was carried out in two parks located in the central part of Volgograd, where there are no industrial enterprises, and are adjacent to one of the largest city highways. Analysis of the particulate composition and mass concentration of fine dust in atmospheric air was performed using microscopic analysis and using Handheld 3016. At the same time, the temperature and relative humidity of the air, wind speed and atmospheric pressure were measured. Measurements were made in places with the largest concentration of visitors to the park at an altitude of 0.5 m, 1 m and 1.5 m, i.e. in the breathing zone of children, adolescents and adults. In the air environment on the territory of the surveyed park zones of Volgograd, there is no excess of the MPC in the atmospheric air for suspended matter RI2.5 observed, but there are cases of significant excess of the average annual and average daily MPC for RM10 particles.

Keywords: atmospheric air, park area, fine dust, maximum permissible concentration (MAC), dispersed composition

The article presents the results of experimental studies on the study of changes in the concentration of active chlorine in water treated with sodium hypochlorite when exposed to UV radiation and its contact with the concrete surface. The obtained research results are aimed at studying and solving the problem of the absence of residual active chlorine in the most remote points of water sampling in large cities with a large length of water distribution networks.

Keywords: disinfection of water, sodium hypochlorite, chlorination, disinfection, residual active chlorine

In order to determine the general principles for the formation of regional programs for the overhaul of common property in apartment buildings in the territory of the Russian Federation, an analysis of regulatory legal acts of 85 constituent entities of the Russian Federation was carried out. The main section of the regional program is the sequence of overhaul, which is determined by the criteria. As a result of the study, 47 unique criteria for the order of overhaul were identified and systematized, the relevance of the study and the need to improve the overhaul system were confirmed.

Keywords: overhaul, regional program, criterion, territorial development fund, overhaul fund, apartment building, common property, planning, sequence of overhaul, pace of work

This article defines the necessary characteristics of the collapse of a group of 10 vertical steel tanks with volumes of 15,000 and 20,000 m3

Keywords: oil industry, petroleum products, accidents, vertical steel tanks, collapse

The article discusses modern approaches to the calculation of embedded parts using the most common computing systems in the design environment. The main purpose of the work is a comparative analysis of the stress-strain state of the support plates and anchor rods when calculating in various computing complexes in order to obtain the most reliable and complete results necessary for the designer to ensure reliability when designing components of building structures. In addition to the above, the article focuses on ensuring the rigidity of the support plates, in case of compliance with which, the nodal structural element is able to withstand a single impulse impact.

Keywords: computing complexes, embedded parts, calculation methods, calculation situations, dynamic coefficient, strength indicators

In this article, we delve into the contemporary identity of the mountainous region of North Ossetia, with a focus on its architectural and material framework. The architectural complex of North Ossetia is distinguished by its unique synthesis of four architectural fabrics or layers, each representing an architectural expression of its respective historical epoch. These architectural layers reflect the rich heritage and historical roots of the region, spanning from ancient times to the present day. Analyzing these layers allows us to understand how various historical factors and cultural influences have shaped the architectural character of the mountainous terrain. Understanding this synthesis of architectural fabrics is a key element in preserving and maintaining the identity of this region and its architectural culture. This research aims to contribute to a deeper appreciation of this rich architectural heritage and its role in the modern world.

Keywords: Architectural appearance, identity, traditional architecture, architectural layer, mountain settlement

The article is devoted to modeling heating of fuel oil using a pulsed fluid flow in the SolidWorks Flow Simulation software module. In the future, the use of this technological solution can be considered by a number of industries in the Russian Federation and abroad. The purpose of this article is to describe the results of a computer model of the technological process under study. The computer calculation of the fuel oil heating model using a pulse flow makes it possible to evaluate the efficiency of the process and determine the optimal parameters to achieve maximum efficiency. This will help to reduce the cost of heating fuel oil and increase the efficiency of industrial equipment of enterprises.

Keywords: fuel oil, oil, coolant, shock unit, diaphragm pump, pulse flow, turbulent mode, cavitation, solidworks flow simulation

This publication considers the architectural and compositional dominants of public spaces of two small historical settlements on the Don River - the Cossack villages of Veshenskaya and Razdorskaya. The author focuses on the study of the patterns of formation of the historical and cultural framework of a small historical settlement, as well as the process of development of its architectural and compositional core, which includes the public space of the center of the Cossack villages and the architectural and compositional dominants associated with it. The article provides a retrospective analysis of these dominants in the planning structure of the Cossack villages of Razdorskaya and Veshenskaya in a chronological framework from the beginning of the 19th century to the beginning of the 19th century until now.

Keywords: historical and architectural environment, architectural and compositional dominant, small historical settlement, public space, Cossack village,Cossack village of Veshenskaya, Cossack village of Razdorskaya (Razdorskaya-on-Don), project of protection zones

The paper presents a method for calculating the stress-strain state of composite metal-wood beams, taking into account the compliance of bonds in a nonlinear setting using the SCAD software. In the course of the calculation, the pattern of stress and strain distribution, which is close to the real one, was determined. The concentrations of stresses that are capable of initiating the destruction of the structure are determined. Dangerous areas have been identified that make it possible to predict the mode of destruction of the structure, in order to organize measures to strengthen it. The results of the numerical experiment are confirmed by the materials of physical tests.

Keywords: wooden structure, composite beam, pliable connection, calculation, finite element method, stress-strain state, connection, metal-wood beam

The researches directed on control by gelation, regulating of composition and properties of swelling up fireproof composite coatings (fireproof composites) for security of fire-resistant building constructions are presented. In-process on the basis of the topological analysis and gelation modelling component composition schungite in fireproof aggregates with demanded thermal and hardness in performances is optimised. The interconnection of structural performances, modifications of mineralno-phase composition and properties of fireproof aggregates is experimentally positioned at high-temperature impact. The rated-analytical method positions efficiency of fireproof aggregates for raise of flame-resistance of reinforced concrete constructions. The obtained data have allowed to develop representations about the gelation gear at interacting of corpuscles schungite in swelling up cement system at high-temperature heat and justify to approach to creation of effective fireproof aggregates for fire-resistant building constructions.

Keywords: fireproof composites, swelling up coatings, schungite, granulometry of components, composition optimisation, structure modelling, gelation of aggregates, mineralno-phase composition, properties of composite, fire-resistant of constructions

The article is devoted to solving the problem of organizing the separate collection of municipal solid waste. The obstacles that arise in the implementation of separate waste collection are analyzed. The existing foundations of waste sorting, laid down in the cities of the Republic, are considered. Variants of a system for the separate collection of municipal solid waste, which can be used in the Luhansk region, are proposed. Particular attention is paid to sorting complexes, which act as an auxiliary facility for optimizing the collection of certain types of waste and the recycling of secondary materials. As a result of the study, it was proposed to use such a method of thermal processing of municipal solid waste as pyrolysis.

Keywords: municipal solid waste, separate collection, sorting, heat treatment of waste

The paper presents a study of the water resistance of joints of load-bearing laminated timber structures using domestic melamine-urea-formaldehyde adhesives (MMFC). The high relative strength of samples dried after soaking and boiling above that established for the increased water resistance group is shown. An assessment of water resistance for three formulations is given, the dynamics of crack growth due to the influence of the moisture factor of MMFC.

Keywords: melamine-urea-formaldehyde adhesives, wooden structures, water resistance of adhesive joints, strength

To create composite building materials with a polymer matrix, various fillers of both plant (wood-polymer composites - WPC) and mineral (mineral-polymer composites - MPC) origin can be used. The article evaluates the feasibility of using twelve different minerals in MPC from the standpoint of strength, cost and weight of the resulting materials in comparison with similar indicators of WPC. By sequentially considering each of the evaluated parameters, the sample of fillers is reduced by excluding combinations with characteristics worse than those of the reference material - a wood-polymer binary composite consisting of wood flour and polypropylene. It has been shown that one of the most effective mineral fillers can be waste from construction industry enterprises, as well as structures recycled during the demolition of buildings and structures.

Keywords: composite, matrix, filler, mineral, wood flour, dust, cost, volumetric weight, strength, elastic modulus, Poisson's ratio

The process of determining the most effective design solution from the point of view of metal consumption for the dome structure of the designed exhibition complex in Rostov-on-Don with a plan diameter of 100 m is considered. Three different dome design options are analyzed. Calculation models were created in the Lira-SAPR software package and calculations of various coating options were performed. The obtained results were compared in terms of rigidity and conclusions were drawn about the possibility and feasibility of using each of the considered design solutions. The most efficient design option in terms of metal consumption was selected.

Keywords: metal structures, dome, metal consumption, material consumption