异形柱框架-剪力墙结构的地震响应分析  

The Analysis of Responses of RC Frame-shear Wall Structure with Specially Shaped Columns Under Earthquake

作　　者：秦力[1,2] 贾小刚[2] 杨延波[2] 

机构地区：[1]同济大学土木工程学院,上海200092 [2]东北电力大学建筑工程学院,吉林吉林132012

出　　处：《郑州大学学报（工学版）》2008年第4期101-105,111,共6页Journal of Zhengzhou University（Engineering Science）

基　　金：吉林省教育厅科技计划项目(200630);吉林市科技发展计划项目(200702)

摘　　要：由于剪力墙平面布置不当,在役异型柱-框架剪力墙结构在地震作用下发生严重扭转变形甚至倒塌的例子屡见不鲜.笔者通过调整某异形柱框架-剪力墙结构实际工程中的剪力墙布置方案,进行改进后模型的模态分析和弹性时程分析,研究剪力墙和异形柱不同的平面布置对地震响应的影响.分析发现,改进后模型的抗震性能显著提高,底部剪力变化不大,最大楼层位移和结构自振周期得到明显改善,最大楼层位移值减小14.4%,自振周期减小4.34%.Pieces of news that RC frame - shear wall structure with specially shaped columns in service were severely torsional deformed and even collapsed are always reported, which were largely caused by the disadyantage layout of shear - walls. The layout of shear - walls of an actual structure of this type had been adjusted in this paper, and then methods of modal analysis and time - history analysis were used to study the seismic responses of two different layouts of RC frame - shear walls with specially shaped columns. It is found that the seismic behavior of the adjusted model has improved obviously when having slightly variations of shear value at the bonom of structure. The maximum story displacement and natural period are reduced most apparently by 14.4% and 4.34%.

关 键 词：异形柱框架-剪力墙 模态分析 弹性时程分析 楼间位移 

分 类 号：TU317.6[建筑科学—结构工程]