To ensure sufficient strength, stability of buildings and structures, the possibility of their further normal operation, as well as during reconstruction, when it is necessary to increase the loads on existing structures, it is necessary to strengthen the damaged structures. Ways of strengthening and repairing damaged structures of buildings and structures can to a great extent differ both in technical and economic indicators and in the convenience of implementation, so that their proper choice in each particular case is extremely important. The article considers options for strengthening load-bearing building structures and verified computations for load-carrying capacity taking into account additional loads. The technical and economic comparison of the amplification variants in terms of the following parameters is made: the mass of the amplification elements; the cost of the basic materials needed to strengthen; labor intensity and cost of production; labor intensity and cost of performance of works on strengthening. Analysis of options for strengthening load-bearing building structures can help in choosing the method of reinforcing the load-bearing capacity of reinforced concrete bending elements.
Keywords: bearing capacity, reinforced concrete structures, reinforcement, constant load, strength, operational reliability, deformation