框架核心筒结构抗震性能分析研究

摘要

In this paper some analysis is practiced on a real-world project,that is,the frame-core-tube structures, we establish the calculation model of the frame-core-tube structures using the finite ele-ment analysis software NOSACAD. The elasto-plastic time history analysis is carried out under the fre-quent and rare intensity of 7 degree earthquake. The seismic behavior , failure mechanism and cracking pattern are estimated basing on the experimental results, including natural frequencies, acceleration and displacement responses of the model under earthquakes of different intensity, used to appraise seismic performance and the rationality of the design.%文以某框架核心筒结构为工程背景,用有限元分析软件NOSACAD建立结构分析模型,对结构进行7度多遇和7度罕遇烈度下的弹塑性时程分析.研究框架剪力墙结构的动力特性及在不同烈度地震作用下的加速度反应、位移反应、及层间位移反应等.根据模型结构破坏情况分析结构的薄弱部位和破坏机理,评价结构抗震性能和设计合理性.