The most important task of the theory and practice of information security is to analyze the process of functioning of the subsystem for responding to computer incidents and eliminating the consequences of computer attacks of the information protection system of automated special-purpose systems under the influence of computer attacks by an attacker on the protected information resource, service or network, which involves modeling the response process. A generalized model of the process of eliminating the consequences of computer attacks and responding to computer incidents is presented in the form of a directed graph, where the vertices correspond to the states of the subsystem, and the arcs correspond to transitions from state to state. The description of the subsystem functioning in the state space allows you to simulate the process of responding to computer incidents and eliminating the consequences of computer attacks, evaluating generalized indicators of the time spent by the subsystem in various states and promptly manage the response process by changing the controlled parameters of the model. The model takes into account many types of computer attacks and many strategies for managing information security tools in the process of eliminating the consequences of computer attacks, is the theoretical basis for the development of a methodological apparatus for analyzing, evaluating and prioritizing the processing of computer incidents, as well as the study of issues of dynamic management of the subsystem of responding to computer incidents in order to increase the efficiency of its functioning. The use of the proposed model makes it possible to apply both empirical values of the implementation time of the response and counteraction subprocesses obtained as a result of measurements or modeling, and the theoretical basis for modeling the counteraction of information security tools to computer attacks of various types.

Keywords: automated special purpose system, simulation, information security system, information security tools, computer incident, computer attack, system status

When performing work on the inspection of residential buildings for deconservation, there are often problems associated with determining the composition of work, as well as problems related to the organization of work. This article discusses the scope of work on the survey of residential buildings for deconservation, as well as presents work in the form of schedules that allow you to predict the timing of work, as well as coordinate the exit of specialists to the facility.

Keywords: inspection of buildings, conservation of the object, organization of work, schedule of work, construction in progress, scope of work

Since the volume of restoration works of cultural heritage objects has been increasing recently, cases of problems related to the survey of these objects are not uncommon.this article discusses the main problems that arise during the survey of buildings and structures related to cultural heritage objects and suggests possible ways to solve them.

Keywords: inspection of buildings, object of cultural heritage, organization of work, non-destructive methods for determining the strength of concrete

This article presents the results of a research work devoted to the use of ultrafiltration membranes in the technology of purification of natural waters and wash waters of a contact clarifier unit, as well as design proposals developed on their basis for the reconstruction of existing water treatment plants.

Keywords: membrane technology, ultrafiltration, membrane module, natural water treatment technology, flushing water treatment technologywater treatment facilities, patent research

Frameless arched coverings are one of the varieties of prefabricated structures for various needs: sports facilities, hangars for various equipment, warehouses for vegetable storage, etc. They are economical compared to other structures, since due to their light weight they do not require massive foundations, compared to frame and wall structures and can be laid with a small depth, which in turn saves on land work. Due to this, they arouse interest in their design and in the development of structural improvements, especially for conditions with a sharply continental climate with high precipitation and strong winds. In this paper, frameless arched coverings made of U-shaped profiles were considered, depending on the span of the coating and on the method of insulation for the sharply continental climate of the Republic of Khakassia. As a result, we have received that constructive solutions are required to strengthen these coatings for large spans, for example 15, 20 and 25 meters, or measures to reduce the snow load on the coating.

Keywords: frameless arched coverings, U-shaped arched profile, sharply continental climate of the Republic of Khakassia, polyurethane foam, mineral wool

The article deals with the issue of the influence of ambient temperature on the initial height of the flare emissions rise. The paper presents full-scale and theoretical studies of flare emissions operating near a temporary residential complex. In the course of the work, a series of images of flare emissions at different ambient temperature conditions was carried out and their subsequent comparison with the theoretical model was carried out. Field studies verify the theoretical model and establish that the initial height of the flare emissions depends on the ambient temperature and has an inverse proportionality.

Keywords: Flare, flare emissions, atmospheric air pollution, PM2.5

The organization of urban space in the current conditions should correspond to modern trends in the development of urbanized systems. This is of particular importance in the case of a production site, as it acts as a source of influence on the residential area. From the point of view of environmental safety, it is customary to locate such sources of exposure far from the residential environment, minimizing the negative impact and production risks. At the same time, the need for transport accessibility of the enterprise to ensure supply chains and perform a city-forming function leads to the actual placement of production areas as close as possible to the residential area. The negative impact on the environment in such cases should be minimized or absent through the use of modern technical and technological advances. Ensuring a positive perception of the production complex by citizens and employees is possible by improving the quality of territory organization using the basic principles of architectural and landscape organization. An open-type production area in this case will allow creating the image of a safe enterprise both from the point of view of the environment and the urban space. The article discusses the basic principles of the formation of a favorable architectural and landscape appearance of the production area, including transport accessibility; organization of the territory; the use of various methods of greening and small architectural forms; combination of color and shape; special arrangement of functional buildings and structures. The use of the proposed principles in practice ensures the formation of a new qualitative level of the production space and the urbanized system as a whole.

Keywords: production territory, architectural and landscape organization, principle of territory organization

The article presents the results of experimental studies of crack resistance of inclined cross sections of I-shaped beams using basalt fibre reinforced bars as a transverse reinforcement . The data of previously conducted experiments were studied and the test of own samples was carried out. The beams had the same geometric characteristics and differed from each other in the angle of inclination of the transverse reinforcement, the percentage of transverse reinforcement and the shear span to depth ratio. The influence of variable parameters on the load of formation of inclined cracks and the width of their opening is analyzed. In most cases, the width of the opening of inclined cracks does not exceed the permissible values established by the codes of different countries. The exceptions were mainly samples with the lowest percentage of transverse reinforcement.

Keywords: crack resistance, I-shaped beams, transverse reinforcement, inclined cross sections, shear span, basalt fibre reinforced bars, inclined cracks

The aim of the work is to study the possibility of using mineralized fiber as a damping additive in the production of paving slabs and curbs. Fiber mineralization was carried out with an electrolyte solution and sodium silicate. An assessment was made of the physical properties of fiber and their influence on the physical and mechanical properties of fine-grained concrete, hardening both under normal conditions and after heat and moisture treatment. It was revealed that the strength of concretes modified with fiber and hardening under normal conditions is higher than concretes that have undergone heat and moisture treatment by 4.2%.

Keywords: fiber, organic compounds, sugars, cement clinker, blocking, hardening, hydration, strength, paving slabs

As part of the proper maintenance of a number of infrastructure facilities (right-of-way for roads and railways, protected zones of power lines, gas pipeline routes, etc.), work is being carried out on their territory to remove growing unwanted vegetation. The article discusses the features of determining the values ​​of capital investments for the formation of a system of machines, mechanisms and used mechanized and manual equipment for cleaning these territories from unwanted vegetation, shows an example of their calculation using specific brands of machines, mechanisms and equipment used in production, formulates a conclusion about the feasibility of introducing of the considered method into the production process of enterprises and organizations responsible for the maintenance of the indicated territories of linear infrastructure facilities.

Keywords: territory, unwanted vegetation, removal, mechanization, equipment, definition, capital investment

The article discusses methods and models for evaluating options for design solutions for the installation of special-purpose structures when solving problems of construction and technical expertise, and also describes a catalog of design solutions for the installation of special structures, including information on cost, resource, time characteristics and possible technological methods, mechanization tools used materials, the need for transport, the necessary quantitative and qualitative composition of brigades and links of workers.

Keywords: construction and technical expertise; design solutions; installation of special facilities; construction expert; multi-criteria assessment; organizational and technological solutions

The article analyzes the peculiarities of the organization and technology of repair of urban roads in conditions of dense traffic. The technological parameters of pavement repair, considering uneven temperature and peculiarities of compaction of hot asphalt-concrete mixtures, have been substantiated.

Keywords: Urban roads, multi-lane highways, pavement repair, roadway, asphalt pavement, defects

Engineering and geological conditions of the reconstructed territories are important town-regulating factors in the development of Master Plans and Rules of land use and development. They should be taken into account both at the pre-investment stage and at the stages of development of preliminary and working projects of construction projects. Data on the degree of exposure to dangerous engineering and geological processes will allow calculating the stress-strain state of the foundation depending on changes in the physical and mechanical properties of the soil, which means making the most effective organizational and technological decisions for the reconstruction of urban development.

Keywords: engineering and geological surveys, dense urban development, reconstructed territories, geoinformation bases, digital substructure, geological risks

The use of biogas complexes has found wide application, first of all, as a solution to environmental problems associated with the disposal of waste from the agro-industrial complex, as well as obtaining additional types of energy and organic fertilizers. Many designs of biogas plants have been developed that are suitable for operation in various climatic conditions. The choice of a biogas plant design is the most important stage of the planning process. The article discusses the improvement of the bioreactor installation in order to obtain a larger volume of final raw materials, increasing its quality and efficiency of the installation as a whole. The conditions that contribute to improving the efficiency of biogas plants are determined. The technical characteristics of the biogas plant are presented. The pros and cons of bio-installations, their impact on the environment are considered. The prospects for the development of this energy sector in Russia are assessed.

Keywords: biomass, biogas plant, gas production process, waste disposal, harmful emissions

The article touches upon the problem of waste disposal in the territory of the Russian Federation. The foreign experience of construction of utilitarian enterprises, existing technologies for waste recycling is given. Special attention is paid to the creation of an attractive architectural and artistic image of a modern industrial enterprise through the use of modern three-dimensional, constructive solutions in the implementation of architectural plans, ensuring the attractiveness of objects for the population by ensuring their multifunctionality.

Keywords: waste recycling plant, solid household waste, garbage, garbage disposal, waste recycling, spatial solutions, industrial building, utilitarian building, structural solutions, spatial structures, flat structures, facade systems, architectural image, environ

The shear calculation scheme of a multi-storey building, popular in design practice, is considered.The application of the method of displacements is shown, when the mutual displacements of the floors of the frame are taken as unknowns. The indicated technique leads to the solution of the system of equations of the displacement method with the upper two-diagonal matrix, which makes it possible to obtain an analytical solution of the problem.

Keywords: shear calculation scheme of the building, move method, tridiagonal matrix, sweep method, reciprocal movements, analytical solution of the equation system

To date, the construction of high-rise buildings is the highest priority in construction. One of the problems in the construction of high-rise buildings is wind loads, which have a significant impact on horizontal movements. The article provides a calculation in the LIRA CAD software package of a high-rise building for wind loads in order to determine the optimal locations of outrigger floors and the type of outrigger floor. The system of outrigger floors serves to reduce the displacement of floors from the effects of wind loads.

Keywords: high-rise building, outrigger, stiffness core, aerodynamics, software package, modeling, wind loads

The analysis of the complex sustainable development of the Leninsky district, the city of Rostov-on-Don is carried out. Criteria were defined on the basis of which a decision can be made on the integrated sustainable development of the territory of the city of Rostov-on-Don.

Keywords: integrated sustainable development of the territory, Federal law, Urban Planning Code, draft law, local self-government bodies, territory analysis, land plots, construction, boundaries of the area, reconstruction, Rostov-on-Don

The increased fire hazard of foamed polymers hinders their widespread use in the construction industry. An effective method of reducing the combustibility of carbonizing polymers is the use of phosphorus-containing flame retardants. Therefore, investigation of the influence of phosphorus-containing flame retardants to the composition of pyrolysis products and operational properties – heat resistance, flammability, combustibility and smoke generating ability – is the important objective. In the article we have presented the results of related experimental studies. The effects of phosphorus-containing flame retardants on heat resistance and main operational properties related to fire-safety of foamed constructional polymers are examined. A correlation was found between the results of evaluating the combustibility of foams by the limiting oxygen index and the combustibility index. Optimal concentrations of phosphorus in the foamed thermosetting polymers are established. It was shown that optimal concentration of the flame retardants leads to low combustibility of polyurethane-, resole- and urea-based foamed polymers.

Keywords: foamed polymers, fire hazard, оптимальное сдержаниеreducing the combustibility, phosphorus-containing flame retardants, heat resistance, flammability, combustibility and smoke generating ability

The study evaluated the effect of the spring position in the panel on the amount of force required for vertical pushing of the columns. The results show that the farther the spring is from the hinge, the less pushing force is required to lift the column. In this method, the column was connected to the panel by hinged hinges at the factory, which allows lifting elements by crane as a single group during the installation of the frame structure on the construction site. In addition, a spring is installed on the panel at a certain distance, helping to push out the column and secure it. In this article, a threaded connection of precast reinforced concrete columns is proposed, which can be used to connect elements of fully assembled buildings and structures. The contact-screw connection of precast reinforced concrete consists of an upper and lower column, both have a cylindrical steel external thread in the end section connected. The strength of the screw column connection is determined by ensuring the transmission of axial loads and torque in the joints, ensuring the destruction caused by cutting and thread confusion that may occur between the connected columns. By means of the necessary calculations for the screw connection of columns made of precast reinforced concrete the corresponding rigidity and strength were confirmed. The new connections will contribute to the development of construction, its energy efficiency and acceleration of the installation process. These are effective approaches to reducing effort, time, and labor and energy costs.

Keywords: prefabricated buildings, passive assembly, column connection, screw connection, energy efficiency of installation, mounting spring, hinge loop

In this work, the effective thermal conductivity of porous materials is studied by a numerical method. A technique for designing an insulating material with specified geometric characteristics is proposed, which makes it possible to predict the thermal conductivity of porous insulation with sufficient accuracy. The design of foamed porous heat-insulating materials was based on the 3D Voronoi tessellation. The effective thermal conductivity of porous media was determined for twenty structures with different geometric characteristics. The thermophysical properties of the material corresponded to melamine. To verify the numerical solution, the effective thermal conductivity of the melamine sponge was determined experimentally. One regular structure and three irregular structures were compared with each other. The porosity of the insulating structures ranged from 0.722 to 0.987, the fiber diameter ranged from 0.0489 mm to 0.1259 mm. A theoretical solution is proposed for determining the effective thermal conductivity of regular structures. The technique proposed in the work can be used to design heat-insulating materials based on additive technologies, with specified heat-insulating and structural properties.

Keywords: effective thermal conductivity, porous structure, porous insulating material, 3D Voronoi tessellation

The geographical location, tectonic and geological-hydrogeological structure of the Maly Liman Lake basin, its landscape features as a natural monument of regional significance located on the area of the Abraus Peninsula of the Krasnodar Territory were described. The results of current bathymetry studies of the lake were shown. The hypothesis about tectonic origin of its hollow was justified. The sedimentations of the Maly Liman and Abrau lakes were tested and their description was fulfilled. By using radionuclide analysis the sedimentation rates were determined. Expedition work was carried out and a description of the outlets of the perched waters was made. The water balance development models of the of the Maly Liman Lake in the conditions of arid and relatively full-water period were constructed. The perched water dynamics of the upper reaches and surface run-off as the dominant supply sources of the lake was described. A hydrogeological section was constructed along the section of Lake Abrau – Lake Maly Liman. The existence of their hydraulic connection was proved, as well as the presence of two aquifers – the perched water and groundwater.

Keywords: Maly Liman, Limanchik, Abrau, water balance, sediment layers, bathymetry, ground waters, underground drain, mineralization, sedimentations

The article reviews the evolution of the facades of buildings and structures in the context of the factors influencing their shaping from the prehistoric era to modern times on the example of European civilization. The main morphological and syntactic factors are identified, depending on which specific facade solutions are made for buildings and structures, a brief overview of the main artistic tools for decorating the external appearance of the building envelope is given. Based on the results of the review, it is noted that the attitude to the expressiveness of the facades of buildings and structures is formed under the influence of the political system and socio-cultural development in society, and the compositional and artistic tools for shaping facade solutions are compiled depending on the available building materials and skills in construction technologies.

Keywords: facade, shaping, appearance, evolution of facades, architectural syntax, decoration, artistic tools