The sedimentation analysis method is based on the measurement of the deposition rate of suspended solids depending on their equivalent diameter. The use of sedimentation for disperse systems is limited by their size, as microscopic dust particles have low deposition rates and are difficult to analyze. Therefore, for finely dispersed systems, the authors propose a method of sedimentation analysis using portable cameras that record the deposition process and break it down into frames. The images obtained frame by frame are translated with the help of a graphic editor into binary (black and white) format, which is able to process the software. The experimental data obtained are presented in the form of tables and distribution functions.

Keywords: sedimentation, dispersion, dust, binary photography, equivalent diameter, cement dust, distribution function

According to the World Health Organization (WHO), air pollution from solid particles, which causes numerous diseases, leads to several hundred thousand premature deaths in the European Union and up to three million in the world, is one of the most serious problems for humanity. This article presents the oldest and most commonly used dust control method in the industry for the transport of bulk materials, which is the use of wet liquid spraying systems. The key factors contributing to the fight against dust are indicated, the possibility of using surfactants is considered. The authors investigate such an urgent problem today as the further development and study of methods of dust removal in industrial construction. The main place in the article is occupied by the issue of increasing the efficiency of the process of air dedusting by low-pressure irrigation. A method for a mathematical description of this process is proposed. The work contains tables and formulas that allow tracing the process of mathematical transformations. The authors of the article present the results of their research, the final result of which is a mathematical description of the dependence of the efficiency of the dedusting process with low-pressure irrigation, taking into account the accepted assumptions and boundary conditions. At the end of the work, it is concluded that formulas have been obtained for improving the applied method of transportation using bulk materials by a belt conveyor.

Keywords: air, dust, transportation, bulk construction materials, heating, fertilization system, mathematical modeling, low-density cultivation, ecological safety, fine-grained particles

This article is devoted to a comprehensive study of noise generation processes in the industrial production of reinforced concrete products. The relevance of acoustic research of industrial equipment is substantiated. The authors of the article cite and analyze the experimental results of studies of noise generation processes in existing workshops. The paper presents graphs of noise spectra of the most common molding equipment. In conclusion, the authors draw conclusions about the advantages and disadvantages of vibration equipment for the manufacture of reinforced concrete products of various types and make recommendations for its use.

Keywords: acoustics, acoustic activity, vibroforming equipment, industrial production, safety equipment, labor protection, noise, vibration, working conditions, vibration installations

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

Ventilated facades are becoming quite common in Europe and around the world. This type of facade provides good thermal comfort in the room. This article describes the main trends of the development of modern facades. The authors look at the numerous advantages of ventilated facades and their varieties with a double chamber (also named multiple-skin façade) in front of traditional massive facades. There is a wide variety of concepts of facades that provide ample opportunities for the work of architects of various schools and directions. The article argues that the design strategies for ventilated facades should adapt to climatic conditions and take into account local features, such as average annual temperature and its extreme values, solar radiation, humidity levels, in order to minimize building loads and energy consumption. The use of double ventilated facades in the construction of new ones and the re-lining of previously constructed buildings with them contribute to the improvement of the ecological characteristics of the urban environment.

Keywords: ventilated facade, ventilated facade device, internal climate, sound insulation, thermal insulation, facade, facade profiles, double ventilated facade, energy efficiency

The traditional approach to designing seismic resistant buildings is to provide the building with strength, rigidity and inelastic deformation capacity. modern methods of protection, in contrast, are not to strengthen the building, but in its ability to relax forces and stresses. There are three main methods used in the design of earthquake-resistant objects. 1. The use of seismic insulating basement. This system provides isolation only in the horizontal direction and is rigid or semi-rigid in the vertical direction. 2. The use of devices that dissipate the energy of an earthquake. In the building, seismic dampers are installed, which reduce the magnitude of vibrations, turning the kinetic energy of the vibrations into thermal energy. 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: seismic resistance, high-rise building, earthquake, seismic isolation foundation, “levitating” house, damper, deformation, structural reaction, passive, active, semi-active control system

the paper presents the characteristics of the leading on the market types of structures and types of materials used in the construction of translucent roofs of glass-filled airports , based on the analysis of which the technology is promising. Also are described innovative developments applicable in the field of study.

Keywords: translucent roof, triplex, tempered glass, airport, single-chamber double-glazed window, long-span coating, roofing, coating, translucent construction, glass roofing, panoramic roofing, glass coating

The paper presents the characteristics of the leading types of media facade constructions on the market, on the basis of the analysis of which the prospects for the introduction of technology into the urban space were evaluated. The article also describes the main types structural and architectural solutions that determine the rationality of the use of a particular type of media facade.

Keywords: media facade, cluster media facade, framed media facade, frameless media facade, modular media facade, LED, architectural lighting, LED screen, media facade design, interactive facade

Light steel thin-walled structures are considered as elements of modern building erection technology. Domestic and foreign regulatory documents governing the use and design of structures made of thin-walled steel profiles are presented, and obvious advantages and operational disadvantages are indicated.

Keywords: construction, metal structures, light steel thin-walled structures, thin-walled beams, energy efficiency

An actual problem of the lack of green spaces in modern cities is considered. Some ways of applying gardening in the structure of the building are suggested, which can solve the indicated problem. The most detailed consideration is the reception of horizontal external landscaping, examples of domestic and foreign experience are given.

Keywords: Green architecture, green spaces, vertical landscaping, atrium landscaping, horizontal outdoor landscaping, house-garden decoration of building facades, roofs in operation

The article deals with the stages, causes of origin and actual problems of high-rise construction in Rostov-on-Don. Examples of successful development of high-rise buildings in Russia and abroad are given. The problematic aspects are analyzed, possible ways of solving on the basis of the experience of other cities in the construction of unique buildings are shown.

Keywords: high-rise construction, town-planning, skyscraper, design, architecture, number of storeys, Rostov-on-Don, development, zoning, world practice, normative and legal documentation

Considered the location of the bus station in the urban development, its location relative to the functional areas, the design and construction stage.

Keywords: bus stations, buses, cities "satellites", agglomeration "Bolsho Rostov", transport, infrastructure, master plan, roads

We consider eccentrically compressed rod elements of reinforced concrete structures. Problems are solved for the development of methods for calculating the strength of normal sections in the case of eccentric compression of reinforced concrete elements; calculation of the load-carrying capacity of reinforced concrete structures by the example of columns of varying flexibility for ultimate effort. Analytically, a calculation is made, which makes it possible to determine the strength of reinforced concrete structures.

Keywords: внецентренно сжатые стержни, железобетонные конструкции, прочность, нормальные сечения, колонны различной гибкости, несущая способность, предельные усилия

Discusses the construction of the supporting ring beams steel bins on separate supports. The problem for the development of algorithm and program of calculation of the reference ring beams, steel silos, the combined effect of bending and torsion. Analytically developed a calculation program that allows for the analysis work on the combined effect of bending and torsion when the geometric parameters of the cross section.

Keywords: basic ring beam for steel silos at certain poles, steel silos, bending, torsion, geometric parameters of the cross section, normal tension, torsion torque, bimoment

Physical education at the present stage of world development of society takes the form of a social phenomenon, is to strengthen the role of sport in the lives of everyone. Variety of sports meets a wide range of specially adapted facilities. The problem of technical modernization, stadium reconstruction and development as a multi-functional sports facilities (IVS). Profitability maintained and advanced facilities can be improved by putting into practice the principles of design of architectural form and structural theoretical model of the spatial organization of the IVS.

Keywords: reconstruction of the stadium, technical modernization, multi-purpose sports facility, the principles of formation of architectural, structural theoretical model