STRENGTHENING AND CALCULATION ANALYSIS OF BENDING REINFORCED CONCRETE ELEVENTS

Abstract

During the operation of constructions, buildings and structures, as a result of the influence of various factors, indicators of the technical condition, which causes the need for reinforcement, is reduced. It may also occur due to the end of the project term of its operation, changes in the calculation scheme of an element, due to damage and operation in a disabling or emergency condition, errors in designing, erection, use of substandard materials, and poor performance of works, negative effects of the environment, etc.

During the experiment to increase the bearing capacity of the test beams, it is possible to argue about the effectiveness of this simultaneous enhancement of compressed and stretched zones.

The analysis of methods of strengthening reinforced concrete structures showed, that strengthen structures that work for bending can be both a way of increasing the cross-section, and a way to change the calculation scheme of the work of structure. To date, the effect of low-cycle loads of high levels on the work of strengthened bending reinforced concrete elements is not fully investigated. Research in this area is relevant and necessary for modern construction. The use of modern carbon-plastic materials and steel-fiber reinforced concrete is an effective way to strengthen bending reinforced concrete elements.

The development of such a method to enhance and improve the algorithm of calculation is very relevant, whereas comparing theoretical research with the results of the experiment will prove the reliability of the theoretical conclusions and prerequisites that were laid down in their basis, as well as talk about their application in practice.