二层足尺细密柱框架结构体系抗震性能  

Aseismic performance of a full-scale model of a two-storied frame structure with dense grid of slender columns

作　　者：邓新穗[1] 张扬[2,3] 张举兵[2] 刘军进 牟在根[2] 

机构地区：[1]广州市市政工程设计研究院,广州510060 [2]北京科技大学土木与环境工程学院,北京100083 [3]中国建筑科学研究院,北京100013

出　　处：《北京科技大学学报》2009年第6期674-678,共5页Journal of University of Science and Technology Beijing

基　　金：国家自然科学基金资助项目(No.50878022);北京市自然科学基金资助项目(No.8082017)

摘　　要：为研究细密柱框架结构体系的抗震性能,对一个两层密细柱框架结构的足尺模型进行了拟静力往复荷载实验,给出了实验结果;利用有限元计算软件ABAQUS、SAP2000和PKPM对模型进行了推覆分析,并与实验结果进行了对比,发现软件分析所得的裂缝模式和塑性铰位置均与实验结果吻合;最后得出了该实验模型的性能曲线,并对其在罕遇地震作用下的性能进行了评价.实验结果表明,作为框架结构的一种,密细柱框架体系可以发挥良好的抗震性能.In order to investigate the aseismie performance of a kind of newly developed frame structure with dense grid of slender concrete columns in walls, a quasi-static test under reciprocating lateral loads was conducted for a full-scale two-storied modal frame and the experimental results were introduced. As a comparative study, ＇the static elastoplastic push-over analyses were performed using different softwares of ABAQUS, SAP2000 and PKPM. Compared with the experimental results, the analyzed FEM models exhibited the same crack propagation patterns in walls, and the plastic hinge points also coincided with the experimental results. Finally, a capacity spectrum was obtained to evaluate the aseismic performance of the experimental model; its aseismic performance under eightdegree rare earthquake was evaluated. It is concluded that the aseismic performance of the frame structure with dense grid of concrete columns is considerably good.

关 键 词：框架结构 拟静力 往复荷载 抗震性能评估 

分 类 号：TU317.1[建筑科学—结构工程]