部分包覆组合剪力墙结构弹塑性时程分析  

Elastoplastic time history analysis of partially encased composite shear wall structure

作　　者：邱森 吴荣兴[1] 李晓东[1] 黄丽莉[1] 杨宇焜 蒋路 张莉莉 Qiu Sen;Wu Rong-xing;Li Xiao-dong;Huang Li-li;Yang Yu-kun;Jiang Lu;Zhang Li-li(Institute of Applied Mechanics,Ningbo Polytechnic,Ningbo 315800,China;Zhejiang Green Building System Technology Co.Ltd,Shanghai 201199,China)

机构地区：[1]宁波职业技术学院应用力学研究所,浙江宁波315800 [2]浙江绿筑集成科技有限公司,上海201199

出　　处：《工程抗震与加固改造》2021年第4期37-43,共7页Earthquake Resistant Engineering and Retrofitting

基　　金：浙江省教育厅一般科研项目(Y201941153)。

摘　　要：为研究部分包覆组合剪力墙(PEC剪力墙)结构的抗震性能,设计了一幢18层装配式PEC剪力墙高层住宅模型,编写Python程序实现弹性模型到弹塑性模型的自动转化,并利用ABAQUS软件进行地震作用下动力弹塑性时程分析。结果表明:罕遇地震作用下,纵向楼层的连梁逐渐进入屈服状态,塑性得到充分发展,横向楼层的连梁和框架梁基本未出现屈服;底部加强区采用提高钢板厚度等措施,保证了连梁先于墙肢出现屈服,少量墙肢混凝土出现受压损伤现象,累积损伤符合预期;墙肢内配置的型钢在整个时程作用中并未屈服。结构X向最大弹塑性层间位移角为1/112,发生在第14层;Y向最大层间弹塑性位移角为1/156,发生在第10层,两个方向位移角均小于1/70,满足结构对弹塑性层间位移角的限值要求,具有良好的抗震性能。In order to study the seismic performance of partially encased composite shear wall(PEC shear wall)structure,an 18 story assembled PEC shear wall high-rise residential model is designed.A Python program is written to transform the elastic model into the elastic-plastic model,and ABQUS software is used to analyze the dynamic elastoplastic time history under earthquake.The results show that:under the rare earthquake,the coupling beams of the longitudinal floors gradually enter the yield state,the plasticity fully developed,and the coupling beams and frame beams of the transverse floors basically do not yield;the bottom reinforcement area adopts measures such as raising the steel plate to ensure that the coupling beams yield before the wall limb,a small amount of wall limb concrete appears compression damage,and the cumulative damage meets the expectation;the wall limb internal configuration in the whole time course,the section steel of steel has not yielded.The maximum elastic-plastic displacement angle of the structure in X direction is 1/112,which occurs in the 14 th floor;the maximum elastic-plastic displacement angle in Y direction is 1/156,which occurs in the 10 th floor,which is less than 1/70,which meets the limit value requirements of the structure for the elastic-plastic displacement angle,and has good seismic performance.

关 键 词：包覆组合剪力墙 罕遇地震 骨架曲线 弹塑性时程分析 抗震性能 

分 类 号：TU398.7[建筑科学—结构工程]