- 摘 要
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（1 廣州容柏生建筑結(jié)構(gòu)設(shè)計事務(wù)所，廣州 510170； 2 廣州數(shù)力工程顧問有限公司，廣州 510170）
［摘要］某辦公樓平面兩端為豎向交通和輔助用房的剪力墻筒體，中間為四榀單跨框架。針對該超高層建筑的特殊性，設(shè)計中采用了較新穎的結(jié)構(gòu)布置方法。運用ABAQUS+BEPTA程序，將梁、柱和剪力墻的彈塑性在材料的應(yīng)力應(yīng)變層次上精確模擬，同時考慮結(jié)構(gòu)的幾何非線性，采用顯式積分的方法，對該結(jié)構(gòu)進(jìn)行了罕遇地震作用下的彈塑性時程分析，以檢驗其結(jié)構(gòu)布置的合理性和結(jié)構(gòu)的抗震性能。結(jié)果表明，調(diào)整后的結(jié)構(gòu)形式具有較高的抗震承載力和延性，基于塑性區(qū)模型的彈塑性時程分析是保證結(jié)構(gòu)大震不倒的比較有效和可靠的方法。
［關(guān)鍵詞］超高層建筑；單跨框架；彈塑性時程分析；ABAQUS；BEPTA
中圖分類號：TU973文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2011)03-0040-05
Elastic-plastic time-history analysis of a super high-rise building under rare earthquakes
Huang Zhonghai1,2, Liao Yun1,2, Wang Yuanli1,2, Z.lee1,2
(1 RBS Architecture Engineer Design Associate, Guangzhou 510170, China;
2 Guangzhou Scientific Computing Consultants Co., Ltd., Guangzhou 510170, China)
Abstract:Two shear wall cores are arrayed on both end of the building layout and four singlespan frames are placed in the middle for an super high-rise building. An original structure arrangement was used. Without simplification, nonlinearities of the beam, column and shear wall element were modelled in stress-strain relation level. The explicit method was implemented to integrate the dynamic equations. ABAQUS and BEPTA were used to perform the elastic-plastic time-history analysis under the rare earthquake load. The validity of the structure arrangement and the seismic performance of the structure were studied. The results show that the structure has sufficient seismic capacity and ductility. The goal of collapse prevention under expected rare earthquake is achieved, and the proposed analysis is reliable and promising.
Keywords:super high-rise building; single-span frame; elastic-plastic time-history analysis; ABAQUS; BEPTA
作者簡介：黃忠海，碩士，工程師，Email: huangzhonghai19@163.com。
參考文獻(xiàn)
［1］CECS230:2008 高層建筑鋼-混凝土混合結(jié)構(gòu)設(shè)計規(guī)程［S］. 北京：中國計劃出版社，2008.
［2］黃忠海，廖耘. 某復(fù)雜超高層結(jié)構(gòu)方案的選擇與優(yōu)化設(shè)計［J］.建筑結(jié)構(gòu)，2010，40（3）：33-35.
［3］李志山，容柏生. 高層建筑結(jié)構(gòu)在罕遇地震影響下的彈塑性時程分析研究［J］. 建筑結(jié)構(gòu)，2006，36（S1）:（2-142）-（2-149）.
［4］鐘善桐. 鋼管混凝土結(jié)構(gòu)［M］. 北京：清華大學(xué)出版社，2003.
［5］黃忠海，廖耘，李志山，等. 珠江新城J2-5地塊框架-核心筒超高層結(jié)構(gòu)的罕遇地震彈塑性時程分析［J］. 結(jié)構(gòu)工程師，2009，25（2）：91-97.
［6］JGJ3—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.
