T形截面短肢剪力墙曲率延性分析  

Analysis of curvature ductility of short shear walls with T-shaped cross section

作　　者：张敏[1] 侯志成[1] 

机构地区：[1]广西科技大学土木建筑工程学院,广西柳州545006

出　　处：《广西工学院学报》2013年第2期59-62,73,共5页Journal of Guangxi University of Technology

基　　金：广西自然科学基金项目(2011GXNSFA0 18024)资助

摘　　要：研究采用matlab软件,计算出构件在轴压比n=N/fcA和受压与受拉纵筋面积比As’/As不同时几种弯矩与曲率,分析了T形截面短肢剪力墙曲率延性的影响,并绘制M-ψ曲线.结果表明,随轴压比n增大,延性降低;随纵筋面积比As’/As增大,延性提高,所以合理控制轴压比n,及适当提高受压与受拉纵筋面积比是改善其抗震性能的有效措施.Different ratio of axial compressive force n=N/fc A and the rebar ratio As＇/As of short shear walls with T-shaped cross section are analyzed in the paper with the results of bending moment-curvatures calculated in Matlab software, and M-ψ curves is produced after that. The results indicate that with the increase of ratio of axial compressive force n=N/fc A, the ductility decreases. And with the increase of rebar ratio As＇/As , the ductility improved. Therefore, the effeetive measures to improve the seismic performance of the shear walls could be a reasonable control of axial compression ratio n=N/fc A, and the decreasing of As or increasing of As＇/As.

关 键 词：T型截面 短肢剪力墙 matlab软件 轴压比 配筋率 

分 类 号：TU352.1[建筑科学—结构工程]