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(1 中國航空規(guī)劃設(shè)計研究總院有限公司, 北京 100120;2 內(nèi)蒙古自治區(qū)本級政府投資非經(jīng)營性項目代建管理局, 呼和浩特 010010)
[摘要]內(nèi)蒙古美術(shù)館是一棟有多個不規(guī)則項、使用功能要求高的復雜超限高層建筑。采用PMSAP和MIDAS Gen軟件進行結(jié)構(gòu)在多遇地震作用下的反應(yīng)譜整體分析,并采用彈性時程分析法對其進行補充;針對穿層柱,分別建立含夾層的模型和不含夾層的模型來考察夾層對穿層柱地震剪力的影響;對結(jié)構(gòu)主要構(gòu)件進行了中震、大震等效彈性分析,同時對連梁、框架柱、核心筒剪力墻進行了罕遇地震下動力彈塑性時程分析,并在復雜連接區(qū)域采取在框架柱、核心筒內(nèi)增設(shè)鋼骨、提高核心筒底部加強區(qū)配筋率等措施來提高構(gòu)件延性。結(jié)果表明,本工程結(jié)構(gòu)具有足夠的抗震能力和抗倒塌能力,能夠滿足抗震設(shè)防要求。
[關(guān)鍵詞]美術(shù)館; 超限高層結(jié)構(gòu); 抗震設(shè)計; 性能化設(shè)計
中圖分類號:TU318文獻標識碼:A文章編號:1002-848X(2018)05-0066-05
Structural seismic design of Inner Mongolia Art Museum
Xu Rui1, Du Bojun2, Jin Laijian1, Fan Qinxin1, Xu Zhijian1
(1 China Aviation Planning and Design Institute Co., Ltd., Beijing 100120, China; 2 The Inner Mongolia Autonomous Region Investment Non-operating Project Construction Administration of the Government at the Corresponding Level, Hohhot 010010, China)
Abstract:Inner Mongolia Art Museum is a complicated out-of-code high-rise structure with many irregularities and high function requirements. The PMSAP and MIDAS Gen software were used to conduct the response spectrum holistic analysis of the structure subjected to frequent earthquakes and elastic time-history analysis was conducted to supplement. For the stratified column, models with and without interlayers were established respectively to study the influence of interlayer on seismic shear force of stratified columns. Equivalent elastic analysis of the main components of the structure was carried out under fortification and rare earthquakes. The dynamic elasto-plastic time-history analysis was conducted on the coupled beams, frame columns and corewall shear walls under rare earthquakes. Measures were taken to improve component ductility in the complex connection area by setting steel components in frame column and corewall, and increasing reinforcement rate in bottom reinforcement area of corewall. The results show that the structure of this project has enough seismic capacity and anti-collapse ability, which can meet the seismic fortification requirements.
Keywords:art museum; out-of-code high-rise structure; seismic design; performance-based design
作者簡介:徐瑞,碩士,研究員級高級工程師,一級注冊結(jié)構(gòu)工程師,Email:912315863@qq.com。