- 摘 要
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（1天津大學(xué)建筑設(shè)計(jì)研究院，天津300073；2河北工業(yè)大學(xué)土木工程學(xué)院，天津 300401）
[摘要]為研究不同形式現(xiàn)澆板式樓梯對框架結(jié)構(gòu)抗震特性的影響，采用三種不同構(gòu)造形式的樓梯，通過建立計(jì)入和不計(jì)入樓梯的四種不同框架結(jié)構(gòu)模型并用GSSAP軟件計(jì)算分析，得到了框架結(jié)構(gòu)整體動力特性和樓梯及相關(guān)構(gòu)件特性。計(jì)算結(jié)果表明，不同形式樓梯對框架結(jié)構(gòu)各方面影響程度不同，樓梯自身力學(xué)性能也有較大差別，整體與結(jié)構(gòu)相連的樓梯比一端與結(jié)構(gòu)分離的樓梯在對結(jié)構(gòu)整體地震反應(yīng)及樓梯間構(gòu)件內(nèi)力方面影響較大，建議在設(shè)計(jì)中采用與框架結(jié)構(gòu)分離的樓梯方案。
[關(guān)鍵詞] 樓梯；框架結(jié)構(gòu)；地震作用；整體影響
中圖分類號:TU375.4 文獻(xiàn)標(biāo)識碼:A 文章編號：1002-848X(2013)S1-1138-04
Comparison analysis of the earthquake-resistance performance of frames with different staircases
Li Jinjun1,Yu Ningning2,Ruan Yimeng1,Dou Yubin1
(1 Architectural Design Research Institute of Tianjin University ,Tianjin 300073, China;2 School of Civil Engineering, Hebei University of Technology, Tianjin 300401, China)
Abstract: In order to study the seismic performance of frame structure based on different stairs,three staircases of different configurations,four different frame structure models, with and without staircases, are established and analyzed by GSSAP.The paper obtains the frame structures’ whole dynamic property and the property of staircase as well as periphery elements.The results show that the effects of frame structures with different staircases on the influence are also different, the mechanical properties of staircases are great differences. Staircase connected to the structure has a greater impact on seismic performance and internal force of members when compared with isolated staircases.The paper proposes that the staircase isolated from frame structure should be use in the structural design.
Keywords:staircase;frame structure; seismic action;whole impact
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