冷弯薄壁复杂卷边槽钢轴压固支构件稳定性能分析

王春刚; 宋代军; 张壮南

doi:10.13204/j.gyjz201202027

冷弯薄壁复杂卷边槽钢轴压固支构件稳定性能分析

doi: 10.13204/j.gyjz201202027

1.
沈阳建筑大学土木工程学院,沈阳 110168

基金项目:

国家自然科学基金资助项目(51008200);中国博士后科学基金资助项目(20080440132);沈阳建筑大学省级重点实验室开放基金项目(JG-200915)

详细信息

作者简介:
王春刚，男，1978年出生，博士，副教授。E－mail:wangcgln@163.com

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- 被引次数: 0
出版历程
- 收稿日期: 2011-10-20
- 刊出日期: 2012-02-20

STABILITY BEHAVIOR OF COLD-FORMED THIN-WALLED STEEL FIXED-ENDED CHANNELS WITH COMPLEX EDGE STIFFENERS UNDER AXIAL COMPRESSIVE LOAD

1.
Civil Engineering College,Shenyang Jianzhu University,Shenyang 110168,China

摘要

摘要: 为研究复杂卷边槽钢轴压固支构件的稳定性能,选取不同的翼缘宽厚比、截面形式、构件长度、卷边长度等几何参数,对共计292个构件进行非线性有限元分析,研究上述参数对复杂卷边槽钢固支构件稳定性能的影响。结果表明:固支构件较易发生畸变屈曲,翼缘宽厚比较大时,构件的整体失稳模式多为弯扭屈曲。构件的极限承载力随着翼缘宽厚比、构件长细比的增大而减小,卷边对构件承载效率的影响随翼缘宽厚比的不同而呈现两种不同的规律。
- 复杂卷边槽钢 /
- 轴压固支构件 /
- 稳定性能 /
- 屈曲模式 /
- 有限元分析
Abstract: In order to investigate the stability behavior of channels with complex edge stiffeners under axial load between fixed-ends,a total of 292 members with different parameters such as width-to-thickness ratio of flanges,section shapes,length of column,stiffener length were selected to be studied by nonlinear finite element analysis.The influence of the above parameters on stability behavior of channels with complex edge stiffeners were studied.It is shown that fixed-ended columns are more prone to distortional buckling.When width-to-thickness ratio of flanges is big,the overall instability mode tends to perform the flexural-torsional buckling.The ultimate load-carrying capacity of members decreases with the increase in the flange width-to-thickness ratio and slenderness ratio.With differences of width-to-thickness ratio of flanges,two different rules were shown about the influence of edge stiffeners on the load-carrying efficiency of members.
- steel channels with complex edge stiffeners /
- fixed-ended members under axial load /
- stability behavior /
- buckling mode /
- finite element analysis

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参考文献(11)

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