湖南大学学报（自然科学版）2016，Vol.43Issue(3)：55-65,11.
不锈钢工字形截面构件轴心受压整体稳定计算方法
Calculation Method of the Overall Stability for I-shaped Stainless Steel Member under Axial Compression Load
摘要
Abstract
In order to investigate the overall stability of I-shaped stainless steel member under axial compression load,the nonlinear finite element analysis of the stainless steel members subjected to axial compression load was performed by ANSYS software.By comparing the numerical results with the experi-mental results,the accuracy of the finite element model was verified.The effects of initial geometric im-perfections,section residual stress,material mechanical properties,and section width-thickness ratio and slenderness ratio on the overall stability of the members were parametrically analyzed by means of the vali-dated finite element analysis.According to the comparison,it can be seen that the material mechanical properties and slenderness ratio of the members are the key influential factors.Based on the parameter analysis,a new three-segment formula for calculating the overall stability coefficient was proposed by data fitting .The proposed three-segment formula can accurately predict the overall stability bearing capacity for I-shaped stainless steel member under axial compression load.关键词
不锈钢/有限元法/整体稳定性/参数分析/计算方法Key words
stainless steel/FEA(Finite Element Analysis)/overall stability/parametric analysis/cal-culation method分类
建筑与水利引用本文复制引用
杨璐,尚帆,赵梦晗,徐东辰,张勇..不锈钢工字形截面构件轴心受压整体稳定计算方法[J].湖南大学学报（自然科学版）,2016,43(3):55-65,11.基金项目
国家自然科学基金资助项目（51108007），National Natural Science Foundation of China （）
