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(北京三茂建筑工程檢測鑒定有限公司, 北京 100088)
[摘要]介紹并分析了采用多遇地震作用下的結(jié)構(gòu)抗震驗算、設(shè)防烈度地震作用下的抗側(cè)力構(gòu)件屈服狀況驗算和罕遇地震作用下的彈塑性變形驗算等來綜合評價既有單跨鋼筋混凝土框架結(jié)構(gòu)的抗震性能。分析結(jié)果表明,當滿足所在地區(qū)設(shè)防烈度地震作用下抗側(cè)力構(gòu)件不屈服和罕遇地震作用下的彈塑性變形驗算要求時,可評定既有單跨框架結(jié)構(gòu)抗震性能夠滿足抗震設(shè)防的要求。
[關(guān)鍵詞]單跨鋼筋混凝土框架; 抗震性能; 既有建筑
中圖分類號:TU375文獻標識碼:A文章編號:1002-848X(2018)11-0097-04
Seismic performance evaluation of existing single-span reinforced concrete frame structure
Cai Zhi, Li Qingyang, Li Hui, Yu Lei, Gao Xiaowang
(Beijing Sanmao Test & Appraiser of Construction Engineering Co., Ltd., Beijing 100088, China)
Abstract:The seismic performance of the existing single-span reinforced concrete frame structure was comprehensively evaluated by introducing and analyzing the seismic checking calculation under the action of frequently earthquakes, the checking calculation of the yield condition of the lateral force members under the action of the fortification earthquakes and the elasto-plastic deformation checking under the action of the rare earthquakes. The analysis results show that the seismic resistance of the existing single-span frame structure can meet the requirements of seismic fortification when the anti-lateral force components are not yielded under fortification earthquakes and the elasto-plastic deformation checking requirements under the rare earthquake action.
Keywords:single-span reinforced concrete frame; seismic performance; existing building
作者簡介:蔡志,本科,工程師,Email:510205351@qq.com。