【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.更多还原

【Abstract】 In order to investigate the aseismic 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 twostoried 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 eight-degree rare earthquake was evaluated.It is concluded that the aseismic performance of the frame structure with dense grid of concrete columns is considerably good.更多还原