(启迪设计集团股份有限公司, 苏州 215021)

摘要: 服役期常用装配整体式框架结构连接节点的抗震性能随着服役时间的增长不断减弱,将对整体结构产生影响. 利用 SAP2000 软件建立常用装配整体式框架结构计算模型,模型中定义了服役期常用装配整体式框架结构连接节点刚度. 结合增量动力分析法与层间位移角限值修正后的结构极限状态划分方法,对常用装配整体式框架结构服役期抗震性能进行了研究. 研究结果显示,该类结构抗震性能在服役期内不断衰减,在服役时间超过 10 年之后,该种现象更加明显. 此外,层间位移角限值未修正的结构极限状态划分方法将高估常用装配整体式框架结构的抗震性能.

关键词: 服役期; 常用装配整体式框架结构; 抗震性能; 层间位移角限值; 增量动力分析

中图分类号:TU375 文献标志码:A 文章编号:1002⁃848X(2022)07⁃0131⁃05

DOI:10. 19701 / j.jzjg.SZY2114

Study on seismic behavior of commonly used prefabricated frame with cast⁃in⁃situ jointstructure during service period

ZHONG Qidi, SONG Hongyu, SHEN Yinliang

(Tus⁃Design Group Co., Ltd., Suzhou 215021, China)

Abstract:The seismic behavior of the connection joints for commonly used prefabricated frame with cast⁃in⁃situ jointstructure during the service period degrades continuously with the increase of the service time, which will have an impact onthe overall structure. The calculation model of commonly used prefabricated frame with cast⁃in⁃situ joint structure wereestablished based on SAP2000 software, where the stiffness of the connection joins was set for commonly used prefabricatedframe with cast⁃in⁃situ joint structure. Combining incremental dynamic analysis method and structural limit state divisionmethod with modified interstory displacement angle limit, the seismic behavior of commonly used prefabricated frame withcast⁃in⁃situ joint structure during the service period was studied. The results show that the seismic behavior of the structuredegrades continuously during the service period, and the phenomenon becomes more obvious after the service time exceeds10 years. In addition, the structural limit state division method with unmodified interstory displacement angle limit wouldoverestimate the seismic behavior of the commonly used prefabricated frame with cast⁃in⁃situ joint structure.

Keywords:service period; commonly used prefabricated frame with cast⁃in⁃situ joint structure; seismic behavior; interstorydisplacement angle limit; incremental dynamic analysis

第一作者:仲启迪,硕士,助理工程师,主要从事建筑结构设计工作,Email:2580317147@ qq.com.

[引用本文] 仲启迪,宋鸿誉,沈银良. 常用装配整体式框架结构服役期抗震性能研究[ J]. 建筑结构,2022,52(7):131⁃135. ZHONG Qidi,SONG Hongyu,SHEN Yinliang. Study on seismic behavior of commonly used prefabricatedframe with cast⁃in⁃situ joint structure during service period[J]. Building Structure,2022,52(7):131⁃135.