All-Russian Research Institute of Civil Defense

The purpose of the work is to form approaches to forecasting measures to ensure environmental safety of transport and utility complexes of technosphere territories by optimizing the system of regional waste management operators. To achieve this goal, the following scientific and applied tasks were solved in the work: the developments of scientists and specialists in the subject area under study were systematized; a system analysis of the current model of a regional operator for solid municipal waste management was carried out with justification of its low efficiency; based on the theory of dynamic analysis of stochastic systems with uncertain parameters, a model of a multifunctional operator for handling the resource component was developed generated waste of life support of technosphere territories; using the theories of analysis of multi-contour technological systems, the theory of fuzzy sets and fuzzy (soft) calculations, the modeling of states, parameters of a multi-contour system of technological transformation of material and raw materials resources aimed at achieving environmental safety of transport and utility facilities was carried out. The results of the research of this work are used in the process of forming a new waste processing infrastructure within the framework of the industry documents adopted at the federal level of strategic planning of industrial and technological development of the Russian Federation for the period up to 2030.

The development of reinforcement technology for existing reinforced concrete structures requires more accurate and careful consideration of various reinforcement parameters. Refinement of the calculation theory, coefficients, and the introduction of additional criteria make possible to strength structures with greater efficiency. One of the ways to increase the effectiveness of external reinforcement accounting, in fact, increasing the calculated value of the load-bearing capacity of the reinforced section, is consideration the anchoring of the reinforcement element. Currently used methods for calculating the strength of bent elements take into account the coupling of external reinforcement with the surface of the reinforced element by limiting deformations. At the same time, if it is possible to take into account the anchoring of the external reinforcement, both the calculated and the actual bearing capacity of the reinforced element is increase. There’s an analyzes the factors that determine the anchoring of the external reinforcement, which affect the load-bearing capacity of the reinforced normal section of the reinforced concrete element. The analysis is based on previous experimental studies, as well as numerical modeling of the distribution of shear forces. The simulation was performed on a single-span reinforced concrete beam with a hinged support. The numerical simulation took into account the nonlinear nature of the deformation of reinforced concrete (reinforced element), as well as the binding external reinforcement. The work of the outermost reinforcement (carbon fibers) was considered linear, since the graph of deformation of the carbon fiber is almost a straight line before destruction.