弯角半径不同对冷弯矩形钢管柱轴心受压极限强度的影响  

The Performance of Cold-formed Square Steel Columns Ultimate Axial Compressive Stress under Different Ratio of Radius to Thickness

作　　者：马蘅[1] 黄宝平[2] 郭猛[3] 

机构地区：[1]中国城市建设研究院,北京100029 [2]中国建筑设计研究院,北京100044 [3]北京交通大学土木建筑工程学院,北京100044

出　　处：《工程建设与设计》2009年第3期39-42,共4页Construction & Design for Engineering

摘　　要：对不同弯角半径:R/t:2、2.5、3、3.5、4的冷弯方钢管柱进行有限元分析,考察了它们在轴压作用下的反应、应力应变的分布情况,得出其全截面极限强度随弯角的相对弯曲半径的增大而增大的结论。Different ratio of radius to thickness of cold-formed square steel columns are researched by FEM analysis, the stress and strain distribution and deformation are obtained and compared with each other, the stress and strain distribution and deformation are obtained and compared with each other.The conclusion is that the ultimate axial compressive stress increases along with ratio of radius to thickness of cold-formed square steel columns increases.

关 键 词：冷弯型钢 弯角半径 轴心受压 

分 类 号：TU392.3[建筑科学—结构工程] TU311.1