Design of Cold-Formed Thin-Walled Steel Fixed-Ended Channels with Complex Edge Stiffeners under Axial Compressive Load by Direct Strength Method
The stability bearing capacity of axially compressive loaded fixed-ended channels with complex edge stiffeners were analyzed by direct strength method in this paper.A total of 292 examples with different parameters were selected to be studied by nonlinear finite element analysis.As the members with fix-ends, the failure modes include local and flexural-torsional interactive buckling, distortional and flexural-torsional interactive buckling.The revised direct strength method was put forward.After revise, the formula is in good agreement with experimental results.It is shown that direct strength method is valid for predicting the stability capacity of axially loaded fixed-ended channel columns with complex edge stiffeners.We suggest using the DSM3 to calculate the cold-formed thin-walled steel fixed-ended channels with complex edge stiffeners under axial compressive load.
Elastic buckling stress Direct strength method Stability bearing capacity Channels with complex edge stiffeners
Chun Gang Wang Ping Ma Dai Jun Song Xin Yong Yu
College of Civil Engineering,Shenyang Jianzhu University,Shenyang,China,110168
国际会议
上海
英文
1232-1235
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）