摘要
填充墙和框架协同工作,两者之间相互作用,会使结构的抗震性能有很大的改变.为了研究有无填充墙、填充墙的布置方式对RCS组合框架结构抗震性能的影响,文中基于一组RCS组合框架拟动力试验,采用有限元分析软件SAP2000,通过LINK单元建立了5个填充墙等效弹簧斜撑模型,进行模态分析、pushover分析,分析了塑性铰发展的过程,研究表明,RCS纯框架模型塑性铰发展情况与试验结果基本一致,RCS组合结构的周期折减系数在0.3~0.6左右,当RCS结构考虑填充墙时,RCS组合结构底部薄弱层的出现使得“强柱弱梁”失效机制无法实现;中部薄弱层和顶部薄弱层不影响“强柱弱梁”失效机制实现.
Due to the synergy between the infilled walls and frames,the seismic performance of structures will change greatly.To investigate the influence of the layout of the infilled wall on the seismic performance of the RCS composite frames,the finite element analysis software SAP2000 was used to establish a numerical analysis model.The model was based on a set of pseudo-dynamic test of RCS composite frames.Five infilled wall equivalent spring strut models were established by using LINK elements to perform model analysis,pushover analysis and the analysis of the plastic hinge development process.The results show that the development process of the plastic hinge of the selected RCS pure frame model is basically consistent with the experimental results.The period reduction factor of the RCS composite frames is 0.3~0.6;when the RCS structure considers the infilled walls,the bottom weak layer the RCS composite frames makes the failure mode of“strong beam and weak column”fail to appear.The central weak layer and top weak layer will not affect the failure mode of“strong beam and weak column”.
作者
倪伟杰
潘志宏
NI Weijie;PAN Zhihong(School of Civil Engineering and Architecture,Jiangsu University of Science and Technology,Zhenjiang 212003,China)
出处
《江苏科技大学学报（自然科学版）》
CAS
2020年第1期111-118,共8页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
关键词
RCS组合框架
等效弹簧斜撑
塑性铰
填充墙
RCS composite structure
equivalent spring diagonal bracing
plastic hinge
infilled wall
