超高層建筑施工模擬分析的非荷載效應(yīng)應(yīng)用研究*
李 燁，王 建，周建龍
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李 燁，王 建，周建龍（華東建筑設(shè)計研究院有限公司，上海 200002）［摘要］在整個施工過程中結(jié)構(gòu)是一個時變體系，結(jié)構(gòu)的材料參數(shù)、幾何參數(shù)、荷載邊界條件都隨施工進程而改變，結(jié)構(gòu)竣工狀態(tài)的內(nèi)力和變形也是各施工步效應(yīng)的累積結(jié)果，與施工過程和時間效應(yīng)密切相關(guān)。施工過程分析是超高層建筑結(jié)構(gòu)設(shè)計的重要內(nèi)容。通過對非荷載效應(yīng)在施工模擬中的應(yīng)用研究，比較了不同收縮徐變模型的模擬差異、不同分析軟件的應(yīng)用特性，并通過對超高層建筑的施工模擬分析了收縮徐變對剪力墻和巨柱變形、結(jié)構(gòu)豎向差異等因素的影響。［關(guān)鍵詞］非荷載效應(yīng)；施工模擬；收縮徐變；超高層建筑中圖分類號：TU974文獻標識碼：A文章編號：1002-848X(2012)05-0159-05Applying research on construction simulation analysis of non-load effect of high-rise buildingLi Ye, Wang Jian, Zhou Jianlong(East China Architectural Design & Research Institute Co., Ltd., Shanghai 200002, China)Abstract: Considering the time-vary structure under construction sequence, material parameters, geometrical parameters, loading and boundary condition change with the construction process, and the internal force and deformation of structure completion status are the cumulative results of the effect of each construction step, which are closely related with the construction process and the time effect. Construction sequence analysis is important for the structural design of highrise building. Construction analysis of a tall building, comparison of the different shrinkage and creep models and application characteristics of the different analysis softwares were studied, and the influence of shrinkage and creep on reinforced shear wall and vertical displacement difference were also discussed.Keywords: non-load effect; construction process simulation; shrinkage and creep; high-rise building參考文獻［1］劉學(xué)武，郭彥林，張慶林，等. CCTV 新臺址主樓施工過程結(jié)構(gòu)內(nèi)力和變形分析［J］. 工業(yè)建筑, 2007, 37(9):22-29［2］ACI Committee 209. Prediction of creep, shrinkage and temperature effect in concrete structure［S］. American Concrete Institute, 1992: 15-21.［3］The Euro-International Concrete Committee and the International Federation for Prestressing(CEB-FIP). Model Code for Concrete Structure［S］. Thomas Telford Services Ltd., 1990:51-58.［4］BAZANT Z P, PAULAR L. Practical prediction of timedependent deformation of concrete［J］. Materials and Structures, Research and Tesing, 1978, 65 (11): 1114-1126.［5］沈蒲生,方輝,夏心紅. 混凝土收縮徐變對高層混合結(jié)構(gòu)的影響及對策［J］ .湖南大學(xué)學(xué)報:自然科學(xué)版,2008, 35(1) :1-5.［6］郭彥林,江磊鑫，劉學(xué)武. 廣州珠江新城西塔施工過程內(nèi)外筒豎向變形差值研究［J］. 施工技術(shù)，2008, 37(5): 5-8.
