高强冷弯薄壁型钢骨架带交叉支撑墙体抗剪性能研究  

STUDY ON SHEAR PERFORMANCE OF HIGH STRENGTH COLD-FORMED STEEL FRAMING WALLS WITH CROSS-BRACING

作　　者：陈卫海[1] 郭鹏[2,3] 凌利改[4] 何保康[5] 

机构地区：[1]中国京冶工程技术有限公司,北京100088 [2]中国航空规划建设发展有限公司,北京100120 [3]清华大学土木工程系,北京100084 [4]河南城建学院,河南平顶山467036 [5]西安建筑科技大学土木工程学院,西安710055

出　　处：《钢结构》2010年第8期22-26,共5页Steel Construction

摘　　要：对无竖向力水平单调加载和有竖向力低周反复加载两种加载方式下的2榀高强冷弯型钢骨架带交叉支撑墙体抗剪性能进行足尺试件试验研究。在单调加载墙体模型得到试验充分验证的基础上,对影响墙体抗剪性能的5个因素进行有限元参数分析。分析结果表明:立柱间距、交叉支撑截面对墙体抗剪承载力影响较小;随立柱截面尺寸的增大,墙体抗剪承载力增加;随竖向荷载值的增加,墙体抗剪承载力降低;单面设置交叉支撑墙体比双面设置交叉支撑墙体的承载力降低幅度较大。An experimental research is conducted on the shear performance of two full-size high strength cold-formed thin-walled steel framing walls with cross-bracing,under monotonic loading without vertical compression loading and cyclic loading with vertical compression loading.A parameter analysis of five influencing factors of the shear performance of the framing walls is also carried out after the finite element analysis model of the wall under monotonic loading without vertical compression loading has been validated by test data.The analysis results show that the wall stud spacing and the cross section of the cross-brace have little influence on the shear resistance of the wall;the shear resistance of the wall increases with the increase of the cross section of the wall stud;the shear resistance of the wall decreases as the applied vertical load increases;the shear resistance of the wall with flat steel cross-brace on one side is much lower than that of the wall with flat steel cross-brace on both sides.

关 键 词：高强冷弯型钢骨架带交叉支撑墙体 抗剪性能 试验研究 有限元参数分析 

分 类 号：TU392.1[建筑科学—结构工程]