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(啟迪設(shè)計(jì)集團(tuán)股份有限公司, 蘇州 215021)

摘要: 服役期常用裝配整體式框架結(jié)構(gòu)連接節(jié)點(diǎn)的抗震性能隨著服役時(shí)間的增長不斷減弱,將對整體結(jié)構(gòu)產(chǎn)生影響. 利用 SAP2000 軟件建立常用裝配整體式框架結(jié)構(gòu)計(jì)算模型,模型中定義了服役期常用裝配整體式框架結(jié)構(gòu)連接節(jié)點(diǎn)剛度. 結(jié)合增量動(dòng)力分析法與層間位移角限值修正后的結(jié)構(gòu)極限狀態(tài)劃分方法,對常用裝配整體式框架結(jié)構(gòu)服役期抗震性能進(jìn)行了研究. 研究結(jié)果顯示,該類結(jié)構(gòu)抗震性能在服役期內(nèi)不斷衰減,在服役時(shí)間超過 10 年之后,該種現(xiàn)象更加明顯. 此外,層間位移角限值未修正的結(jié)構(gòu)極限狀態(tài)劃分方法將高估常用裝配整體式框架結(jié)構(gòu)的抗震性能.

關(guān)鍵詞: 服役期; 常用裝配整體式框架結(jié)構(gòu); 抗震性能; 層間位移角限值; 增量動(dòng)力分析

中圖分類號:TU375 文獻(xiàn)標(biāo)志碼:A 文章編號: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:仲啟迪,碩士,助理工程師,主要從事建筑結(jié)構(gòu)設(shè)計(jì)工作,Email:2580317147@ qq.com.

[引用本文] 仲啟迪,宋鴻譽(yù),沈銀良. 常用裝配整體式框架結(jié)構(gòu)服役期抗震性能研究[ J]. 建筑結(jié)構(gòu),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.