侧移刚度比对底框结构过渡层的影响  

The effect of lateral stiffness ratio on the transition layer of bottom frame structure

作　　者：刘艳辉[1] 赵世春[1] 黄云德[1] 牟朝志 孙玉林 

机构地区：[1]西南交通大学土木学院,四川成都610031 [2]汶川县建设局,四川汶川623000 [3]茂县建设局,四川茂县623200

出　　处：《四川建筑科学研究》2011年第5期91-94,98,共5页Sichuan Building Science

基　　金：国家科技支撑计划(2009BAJ28B01)

摘　　要："5·12"汶川特大地震震害调查表明,位于灾区的底框结构破坏状态不尽相同,其中,过渡层与其相邻的底框结构的侧移刚度比是重要的影响因素之一。通过对汶川和茂县的两个底框工程的计算分析,得到了过渡层与相邻底部框架—剪力墙层的侧移刚度比对过渡层层剪力、层位移的影响规律。在此基础上,提出了底框结构侧移刚度比控制范围的设计建议。The seismic damage investigation of ＂5· 12＂ Wenchuan Mega Earthquake indicate that the damage state of bottom frame structure in disaster area is not the same.By the calculation and analysis of two bottom frame structure in seismic area Wenchuan County and Mao County,the interpretation of the damage state of the two structure is given fully and reasonably,the influence law is obtained which reveals the lateral stiffness ratio of transition layer and adjacent layer of frame-shear wall to layer shear and layer displacement of transition layer.Based on above all,the design suggestion is put forward about the lateral stiffness ratio selection range of bottom frame structure.The research contents of this article is available to structural designer.

关 键 词：底框结构 过渡层 侧移刚度比 层剪力 层位移 

分 类 号：TU375.4[建筑科学—结构工程]