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  • Overview of modern technologies for recycling construction waste

    The article analyzes modern approaches and technologies for recycling and recycling of building materials. Such types of waste as reinforced concrete, brick, glass, wood, plastic, etc. are considered. Special attention is paid to innovative methods of processing to obtain secondary raw materials (recycling). It is shown that the most promising technologies are the crushing of concrete, brick and reinforced concrete for reuse in construction, the melting of scrap metal, glass and plastic, the processing of wood waste into slabs and fuel. There is an insufficient level of application of innovative solutions in Russia. A set of measures has been proposed to improve the efficiency of construction waste disposal: the introduction of advanced technologies, the construction of waste recycling plants, the adoption of a targeted state program, and the improvement of environmental culture.

    Keywords: waste, construction debris, Russia, secondary raw materials, reuse, environment, recycling, burial, recycling

  • Using a method of reinforcing reinforced concrete floor slabs by adding transverse reinforcement

    Girderless ceilings have become particularly popular in the construction of civil buildings. However, it is often necessary to reconstruct them, namely, to strengthen the joint of the plate with the column. Both domestic and foreign researchers deal with the issues of punching. This scientific article is devoted to the study of the method of strengthening reinforced concrete floor slabs by adding transverse reinforcement.

    Keywords: floor plate, punching, transverse reinforcement, reinforcement

  • Optimization of construction production due to modernization of structural solutions and methods of construction of buildings

    The article provides an overview of construction technologies for the construction of multi-storey residential buildings, taking into account the speed of construction and the quality of structures. A summary table of various types of construction is presented, advantages and disadvantages are identified.

    Keywords: construction production, optimization, constructive solution, method of construction of buildings, block, panel, large-block, monolithic frame, monolithic, modular, comparison, analysis, advantages, disadvantages

  • Risk analysis of construction production

    In modern construction, there are a large number of construction production risks that have a negative impact on the construction of buildings and structures. To reduce adverse impacts on the construction process, it is necessary to constantly monitor these risks. The reasons for the risks of construction production and the ways of their solution are presented in the article. The problem of construction production risks is very significant, given the high rate of construction of buildings and structures using new innovative processes and methods. At the same time, any risk can be avoided or minimized by a high-quality, responsible approach to the performance of their work, with the help of regular control, management and monitoring of all construction risks.

    Keywords: construction, risk, consequence, reason, decision, result, construction company, construction process, project, negative impact, building, structure

  • Logistics of construction production: problems and solutions

    This article discusses logistics systems, problems existing in logistics, presents ways to solve these problems. The field of logistics includes almost all areas of production of each enterprise, such as commercial activities, transport management, information support and others. Construction enterprises should be most interested in the efficiency and rationality of the work of logistics, since it is one of the largest subjects of final consumption of material resources. However, there are logistics problems in the construction industry, but to avoid them it is necessary to understand the ways to solve them, which are described in this article.

    Keywords: logistics, logistics system, construction industry, construction company, resource, integrated management, logistics problem

  • The energy method in the calculations of beams of rectangular cross-section with lateral buckling

    The problem of lateral buckling of a free-supported wooden strip with a constant narrow cross-section loaded with concentrated force in the middle of the span is considered. In the study of lateral buckling of the beam was used energy method. For the case of load application in the center of gravity, the problem is reduced to a generalized secular equation. The dependence between the value of the critical force and the position of the point of application of the load is obtained. A linear approximating function is chosen for this dependence. The results obtained by the authors are compared with the analytical solution using Bessel functions and the numerical iterative method.

    Keywords: thermal conductivity, finite element method, the steady-state temperature field, radiation-heat shield, thick-walled cylinders

  • Modern methods of dealing with filtration in irrigation systems

    The article presents data on the coefficient of performance (COP) of the existing irrigation systems, data on losses from irrigation channels and the distribution of their filtration. Examines the implications, fuss-tic at lower efficiency and as a result, filtration of water from irrigation canals-systems. A number of measures to reduce the loss of water through seepage from irrigation canals, including: maintenance, engineering and design activities.

    Keywords: Filtration, irrigation system, coefficient of performance, protivofiltratcionnye activities, covering, cladding, screens, geosynthetics

  • Abstracts

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