波折腹板梁抗剪性能研究

Study on Shearing Resistance of Beams with Trapezoidally Corrugated Webs

本文基于非线性有限元结构分析方法 ,对波折腹板梁在剪力作用下的破坏机理及基本性质进行了理论分析 ,分析中考虑了大变形与几何初始缺陷。分析结果表明波折腹板梁的抗剪极限承载力明显优于普通工字钢梁。

In this paper,the ultimate strength of beams with trapezoidally corrugated webs under shear loading has been studied using a nonlinear finite element method.Large deflection of plate elements and elastic perfectly plastic model of materials are involved in the analysis,and the effect of initial imperfection of webs is considered.The comparison of behavior between I beams with trapezoidally corrugated webs and flat webs has been carried out.It is found that the shear carrying capacity of the beam with corrugated web is much higher than that of the beam with common flat web.