楔形梁在腹板高厚比不同时整体稳定性的有限元分析

Finite element analysis of integral stability of tapered beam in different web plate height-thickness ratio

借助大型有限元分析软件,分析钢结构中腹板高度线性变化的简支双轴对称工字型楔形梁的腹板高厚比、跨度及两端不等端弯矩比值变化对其整体稳定性能的影响,得到楔形梁整体失稳临界荷载的变化规律及相关结论。

With the help of the large scale finite element analysis software,the influences of the web plate height-thickness ratio,span and bending moment ratio at two different ends on the integral stability of the simple-support double-shaft Ⅰ-shaped symmetrical tapered beam with web plate linear variation in steel structure were analyzed,and the variation rules of critical load for the integral stability loss of the tapered beam and its related conclusions were given.