冷弯薄壁加劲Z型钢双向受弯构件畸变性能分析  

Analysis on Distortion Performance of Bidirectional Flexural Members Made of Thin-wall Cold-formed Stiffening Z-section Steel

作　　者：李清扬[1] 刘丽娟[1] 王刚[2] 李红[3] 

机构地区：[1]河北工程大学土木工程学院,河北邯郸056038 [2]河北工程大学建筑设计研究院,河北邯郸056038 [3]河北工程大学财务处,河北邯郸056038

出　　处：《施工技术》2015年第8期85-87,108,共4页Construction Technology

基　　金：河北省自然科学基金资助项目(E2010001012)

摘　　要：利用ANSYS有限元软件,对冷弯薄壁加劲Z型钢双向受弯构件进行模拟。研究了构件在不同加劲高度、加劲宽度下的畸变屈曲性能。研究表明:在用钢量增大不明显的情况下,加劲肋的存在对其畸变屈曲临界弯矩的影响显著。对比不同加劲宽度下,5种加劲高度构件的临界弯矩与经济系数的变化,得到较有效的加劲宽度与加劲高度范围。By using the finite element software ANSYS, this paper simulated the biaxial bending of cold- formed thin-wall Z-section steel, and studied the distortional performance of the component under different stiffener height and width. The research shows that when the increasing of steel consumption is not obvious, the existence of the stiffener significantly influences the distortional bucking critical moment. By contrasting the changing of component critical moment and economic coefficient of five kinds of stiffener height under different stiffener widths, the effective range of the stiffener width and height is gotten.

关 键 词：加劲Z型钢 双向受弯构件 畸变屈曲 弯矩 性能 

分 类 号：TU391[建筑科学—结构工程]