高烈度區(qū)型鋼混凝土超高層建筑結(jié)構(gòu)設(shè)計研究
金振奮，沈金，干鋼，丁磊，陳剛
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金振奮，沈金，干鋼，丁磊，陳剛（浙江大學建筑設(shè)計研究院， 杭州 310028）［摘要］某綜合辦公樓地下2層，主樓地上46層，高度188m，主樓采用型鋼混凝土筒中筒結(jié)構(gòu)體系，內(nèi)、外筒抗震等級均為特一級。南側(cè)入口門廳4層通高，南側(cè)外筒柱中部6跨層1～8為呈約11.8°角的外斜柱，并在層1～4抽除一根外筒中柱，在層5形成局部高位轉(zhuǎn)換。主體結(jié)構(gòu)抗震設(shè)計采用抗震性能化方法進行設(shè)計。采用SATWE，PMSAP，ETABS，MIDAS等多個計算軟件對該結(jié)構(gòu)體系進行整體及局部的計算和分析，包括多遇地震抗震分析及彈性時程分析、中震抗震分析、罕遇地震彈塑性靜力推覆分析及彈塑性時程分析，各項計算結(jié)果能夠滿足規(guī)范的相應(yīng)要求。整棟樓模擬地震振動臺模型試驗與底部斜柱及斜撐轉(zhuǎn)換構(gòu)件靜力試驗結(jié)果表明,設(shè)計能夠達到預(yù)設(shè)的抗震設(shè)計性能目標，說明結(jié)構(gòu)體系可行，結(jié)構(gòu)構(gòu)件選用合理。［關(guān)鍵詞］高烈度； 超高層建筑； 斜撐轉(zhuǎn)換； 型鋼混凝土結(jié)構(gòu)； 抗震試驗； 抗震性能化設(shè)計中圖分類號：TU973.1+4；TU398+.7 文獻標識碼：A 文章編號：1002-848X(2013)15-0001-08Seismic analysis and design for a SRC tube-in-tube structure in LanzhouJin Zhenfen, Shen Jin, Gan Gang, Ding Lei, Chen Gang(Architectural Design and Research Institute of Zhejiang University, Hangzhou 310028, China)Abstract: The super high-rise SRC structural building in Lanzhou city is comprised by two levels of basement and 46 stories above grade with 188 meters hight. The main building is a SRC tube-in-tube structure. The classes of seismic measure of core tube is high-level grade. The south entrance hall is four layers high. The middle part of the south outer core tube is formed with batter posts same as 11.8° in the 1st-8th storeies. And one center column of outer core tube is removed in the 1st-4th storeies, and the part high-order transition exists in the fifth storey. The performance based seismic design of the main building was taken. SATWE, PMSAP, ETABS, MIDAS etc. analysis programs were taken use to calculation and analysis for the structure, including frequently occurred earthquake, precautionary earthquake, rare earthquake etc., whose results are suitable for the limits of the code. The test results of the seismic experiment and test of bottom batter post indicate that the performance based seismic design can be gotten, which show the structural system is workable and the select of the structural member is rational.Keywords: high seismic intensity; super high-rise building; high-order transition; SRC structure; seismic experiment design; performance based seismic design參考文獻［1］GB 50223—2008建筑工程抗震設(shè)防分類標準［S］. 北京：中國建筑工業(yè)出版社, 2008.［2］GB 50011—2001建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社, 2001.［3］JGJ 3—2002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, 2002.［4］CECS 230:2008高層建筑鋼混凝土混合結(jié)構(gòu)設(shè)計規(guī)程［S］.北京：中國建筑工業(yè)出版社, 2008.［5］建設(shè)部建質(zhì)［2006］220號，超限高層建筑工程抗震設(shè)防專項審查技術(shù)要點［S］.2006.［6］CECS 160:2004建筑工程抗震性態(tài)設(shè)計通則（試用）［S］.中國工程建設(shè)標準化協(xié)會，2004.
