Experimental Study and Analysis on Shear Ultimate Bearing Capacity of Concrete Beams with Web Openings

Abstract

Based on the experimental study, a three-dimensional finite element numerical analysis model is established for the shear behavior of concrete beams with web openings. The unit and its material selection reasonable constitutive relation, the analysis results are in good agreement with the experimental results, this paper uses finite element analysis software in order to analyze the influence of web opening beam loading position of beam bearing capacity, get the most unfavorable loading point hole Chuhuan hoop shear strength; and the further opening were analyzed. At the stirrup ratio in the most unfavorable loading position under the condition of opening of I-beam shear performance influence, how to reasonable hole reinforcement related parameter analysis, put forward relevant measures to strengthen the structure, providing a basis for design.