Методика розрахунку залізобетонних елементів підсилених збільшенням перерізу деформаційним методом

Abstract

The current state of the art in the field of methods of calculation of reinforcement of reinforced concrete structures by increasing the cross section is analyzed, and different approaches to the description of material deformation diagrams are considered. The stress-strain state of normal cross sections of reinforced concrete beam structures, enhanced by the cross section increase based on the application of the basic provisions of the deformation method, is considered. At the same time the dependences for calculating the efforts in concrete and the coordinates of their application for different cases of sections (sections) of reinforced concrete elements are proposed. A technique and algorithm for calculating the stress-strain state of the normal cross sections of reinforced concrete beam structures, enhanced by the cross section increase with the deformation method implemented on the computer, is developed. Based on the numerical experiment, the most rational area of application of the developed methodology was determined and its efficiency during the application for the calculation of reinforcement of arched structures of the bridge across the Southern Bug River on the street. V. Chornovil in Vinnitsa. The technical part consists of four divisions: - architectural and construction solutions; - structural solutions for strengthening bridge structures; - decisions on the organization and management of construction; - decisions on occupational safety and health. - economic section with determination of efficiency of the developed method of calculation of reinforced concrete elements reinforced by the increase of cross section by deformation method.