摘要
运用有限元方法 ,考虑初始缺陷及扭转惯性矩It 的影响 ,计算国产轧制H型钢梁的稳定承载力 ,并与《钢结构设计规范》(GBJ1 7- 88) (以下简称“规范”)计算焊接工字梁的方法进行对比。通过计算发现当轧制H型钢梁的截面高度较大时 ,用“规范”中焊接工字梁的计算方法来计算轧制H型钢梁的稳定承载力是不安全的 。
Using the finite element method as well as taking account of the initial defect and the real torsional moment of inertia,the load bearing capacity of the rolled H\|section beam is calculated. It is indicated by the comparison between the computed results of the finite element method and those of the method in the code (GBJ 17-88) that using the method for calculating the welded steel I\|beam in the code to compute the load bearing capacity of the rolled H\|section beam is not safe. In this paper,a modified design formula is also given.
出处
《工业建筑》
CSCD
北大核心
2000年第8期56-58,80,共4页
Industrial Construction
基金
云南省应用基金
关键词
轧制
H型钢梁
焊接工字梁
稳定系数
rolled H\|section beam welded steel I\|beam stabilization coefficient
