Numerical investigation and design of thin-walled complex section steel columns

作     者：Su-qing HUANG Ju CHEN Wei-liang JIN 

作者机构：Department of Civil Engineering Zhejiang College of Construction Hangzhou 311200 China Department of Civil Engineering Zhejiang University Hangzhou 310058 China 

基　　金：Project supported by the Department of Education of Zhejiang Province (No.Y200804537) the Zhejiang University Zijin Project,and the Zhejiang College of Construction (No.200914), China 

出 版 物：《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 (浙江大学学报（英文版）A辑（应用物理与工程）)

年 卷 期：2011年第12卷第2期

页      码：131-138页

摘      要：A numerical investigation of thin-walled complex section steel columns with intermediate stiffeners was performed using finite element analysis. An accurate and reliable finite element model was developed and verified against test results. Veri-fication indicates that the model could predict the ultimate strengths and failure modes of the tested columns with reasonable accuracy. Therefore,the developed model was used for the parametric study. In addition,the effect of geometric imperfection on column ultimate strength and the effect of boundary conditions on the elastic distortional buckling of complex section columns were investigated. An equation for the elastic distortional buckling load of fixed-ended columns having different column lengths was proposed. The elastic distortional buckling load obtained from the proposed equation was used in the direct strength method to calculate the column ultimate strength. Generally,it is shown that the proposed design equation conservatively predicted the ultimate strengths of complex section columns with different column lengths.

主 题 词：Complex section column Distortional buckling Finite element method (FEM) Intermediate stiffener 

学科分类：08[工学] 081402[081402] 081304[081304] 0813[工学-化工与制药类] 0814[工学-地质类] 

核心收录：

D　O　I：10.1631/jzus.A1000185

馆 藏 号：203441628...