This article systematizes reinforcement methods based on their operating principle and the materials used, identifying key trends: the dominance of technologies based on composite external reinforcement materials and the active development of hybrid systems. A classification scheme has been developed that allows for the informed selection of reinforcement methods based on the technical condition of the structure and the desired result.
The article demonstrates the high effectiveness of composite materials in increasing strength and seismic resistance with a minimal increase in cross-sectional weight. It is determined that traditional methods (reinforced concrete casings, shotcrete) remain relevant when a significant increase in rigidity is required. Promising areas for implementation are identified: the adaptation of international standards, the development of domestic equivalents of high-performance composites, and the creation of digital reinforcement models.of investments in interests of the organization and development of new production on available floor spaces. The most important organizational economic targets of a diversification of management are presented by innovative activity of the industrial enterprise.

Keywords: structural reinforcement, operational load, columns, composite materials, carbon fiber, seismic resistance, shotcrete, steel casings, fiber-reinforced concrete, hybrid reinforcement

This paper provides an overview of modern stochastic and analytical models describing the effect of reinforcement corrosion on the system reliability and residual load-bearing capacity of reinforced concrete beams. Special attention is given to pitting corrosion as the dominant mechanism of strength degradation. Methods for estimating initiation time and progression of corrosion are summarized; criteria for the transition from ductile to brittle failure mechanisms and the assessment of moment redistribution losses are analyzed. Practical recommendations are provided for adjusting safety factors during the design and operation of such structures under high variability conditions.

Keywords: reinforced concrete, rebar, corrosion, pitting, system reliability, degradation, Gumbel distribution, reliability index, moment redistribution

The article presents the results of the second stage of a study to assess the load-bearing capacity of a running meter of a centrally loaded wall of various thicknesses, heights and strengths made of masonry. The second stage includes the study of masonry walls with elastic characteristics α = 200, 350, 500, 750 and is a logical continuation of the first stage, in which masonry with elastic characteristics α = 1000, 1200, 1500 was studied.The results of the study make it possible to minimize the use of a software package for preliminary determination of the bearing capacity of a centrally loaded stone structure and can become part of a practical guide for engineers involved in the technical inspection and design of masonry structures.

Keywords: bearing capacity, wall, stone structure, elastic characteristic of masonry, centrally loaded element, stone, brick, block, masonry mortar, coefficient of longitudinal bending, flexibility

The article presents the results of a study aimed at forming tables for a preliminary assessment of the load-bearing capacity of a running meter of a centrally loaded wall of various thicknesses, heights and strengths made of masonry with elastic characteristics α = 1000, 1200, 1500.The results of calculating 540 different variations of a centrally loaded stone element with different types of stone and mortar material are analyzed. The results of the study make it possible to exclude the use of a software package for preliminary determination of the bearing capacity of a centrally loaded stone structure and can become part of a practical guide for engineers involved in the technical inspection and design of masonry structures.

Keywords: bearing capacity, wall, stone structure, elastic characteristic of masonry, centrally loaded element, stone, brick, block, masonry mortar, coefficient of longitudinal bending, flexibility