某超高層塔樓結(jié)構(gòu)設計及抗震性能分析
辛力1，王敏1，曾凡生1，李永明2，趙宏安1，王馨驊1
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（1 中國建筑西北設計研究院有限公司，西安 710018； 2 北京嘉工國際建筑顧問有限公司， 北京 100015）［摘要］某超高層塔樓采用鋼管混凝土柱鋼框架-鋼筋混凝土核心筒-伸臂桁架混合結(jié)構(gòu)體系，結(jié)構(gòu)東側(cè)中庭部位兩個框架柱在底部兩層不連續(xù)，采用鋼桁架托柱轉(zhuǎn)換，中庭幕墻結(jié)構(gòu)外凸并依附于塔樓。主要介紹該結(jié)構(gòu)的設計特點及抗震性能目標，完成了結(jié)構(gòu)整體受力性能分析、結(jié)構(gòu)構(gòu)件不同性能目標要求的承載力驗算、幕墻結(jié)構(gòu)水平鋼板梁屈曲分析、拉索式門式剛架穩(wěn)定分析和整體結(jié)構(gòu)大震彈塑性時程分析，計算結(jié)果表明，結(jié)構(gòu)整體及結(jié)構(gòu)構(gòu)件的剛度、承載力和穩(wěn)定性滿足抗震性能目標的要求。［關鍵詞］超高層結(jié)構(gòu); 鋼管混凝土柱; 鋼筋混凝土核心筒; 伸臂桁架; 桁架轉(zhuǎn)換; 拉索式門式剛架; 性能目標中圖分類號：TU973 文獻標識碼：A 文章編號：1002-848X(2014)22-0007-05Structural design and seismic performance analysis of a super-tall buildingXin Li1, Wang Min1, Zeng Fansheng1, Li Yongming2, Zhao Hong′an1, Wang Xinhua1（1 China Northwest Building Design & Research Institute Co., Ltd., Xi′an 710018, China; 2 H & J International, PC, Beijing 100015, China)Abstract: A super-tall building adopts the structural system of concrete-filled steel tubular column frame and reinforced concrete core wall with outriggers. Two frame columns in the atrium part of the east side of the structure are discontinuous in the two bottom floors and lift by the steel truss. The convex curtain wall structure in the atrium part attaches on the tower. The structural design characteristics were introduced as well as performance-based seismic design objectives. The structural design was completed including overall mechanical analysis, bearing capacity check of structural components with different performance objectives, buckling analysis of horizontal steel beam of the curtain wall structure, stability analysis of the cable-strut portal frame and the elastic-plastic time-history analysis of the whole structure under the rare earthquake. The results show that the stiffness, bearing capicity and stability of the whole structure and structural components meet the seismic performance objective.Keywords:super-tall structure; concrete-filled steel tubular column; reinforced concrete core wall; outrigger; truss transfer; cable-strut portal frame; performance objective作者簡介：辛力，博士，高級工程師，一級注冊結(jié)構(gòu)工程師，Email:xinli1129@sina.com。參考文獻［1］JGJ 3—2010高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］.北京：中國建筑工業(yè)出版社，2011.［2］韓玉棟,王立偉,龍輝元,等.中鐵·西安中心超高層結(jié)構(gòu)設計［J］.建筑結(jié)構(gòu)，2013,43(23):42-46.［3］陜西大地地震工程勘察中心.延長石油科研中心工程場地地震安全性評價報告［R］.2012.［4］GB 50011—2010建筑抗震設計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2010.［5］JGJ 102—2003玻璃幕墻工程技術(shù)規(guī)范［S］.北京：中國建筑工業(yè)出版社，2003.［6］中國建筑科學研究院建研科技股份有限公司.延長石油科研中心大樓風洞測壓試驗報告［R］.2013.［7］中國建筑科學研究院建研科技股份有限公司.延長石油科研中心結(jié)構(gòu)動力彈塑性分析報告［R］.2013.
