中國尊大廈施工圖設(shè)計(jì)中的彈塑性時(shí)程分析
李華峰，齊五輝，徐金蓓，甘明，苗啟松，楊蔚彪，常為華，宮貞超
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(北京市建筑設(shè)計(jì)研究院有限公司， 北京 100045)
［摘要］北京CBD核心區(qū)Z15地塊中國尊大廈是一棟地上108層、地下7層、建筑總高度528m、高寬比約7.2的復(fù)雜超高層建筑，是目前世界上8度抗震設(shè)防烈度區(qū)在建的最高建筑。結(jié)構(gòu)設(shè)計(jì)采用了巨型鋼混凝土筒中筒結(jié)構(gòu)體系。在施工圖設(shè)計(jì)階段，根據(jù)結(jié)構(gòu)體系的最新調(diào)整情況對結(jié)構(gòu)進(jìn)行罕遇地震下的彈塑性時(shí)程分析，檢驗(yàn)結(jié)構(gòu)在大震下的抗震性能。彈塑性時(shí)程分析時(shí)采用ABAQUS軟件和自主開發(fā)的S2A程序?qū)⒘?、柱、剪力墻、支撐及樓板等?gòu)件的彈塑性在應(yīng)力應(yīng)變層次上進(jìn)行精確模擬，分析過程中考慮幾何非線性，并采用顯式積分算法。結(jié)果表明，結(jié)構(gòu)整體及絕大部分構(gòu)件的抗震性能滿足規(guī)范和性能目標(biāo)的要求?；谒苄詤^(qū)模型的彈塑性時(shí)程分析對本工程結(jié)構(gòu)體系的優(yōu)化起到了重要的作用。［關(guān)鍵詞］中國尊大廈; 超限高層; 彈塑性時(shí)程分析; 抗震設(shè)計(jì); ABAQUS中圖分類號：TU973 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)23-0009-06
Elastic-plastic time-history analysis in the construction drawing design phase of China Zun TowerLi Huafeng, Qi Wuhui, Xu Jinbei, Gan Ming, Miao Qisong, Yang Weibiao, Chang Weihua, Gong Zhenchao(Beijing Insitute of Architectural Design, Beijing 100045, China)Abstract: China Zun Tower in Z15 plot of Beijing CBD core area is a 528m (architectural height) complex super high-rise building with aspect ratio of 7.2 and 108 layers above ground as well as 7 layers underground. It′s the tallest building under construction in the area with seismic precautionary intensity of 8 in the world. The mega steel-concrete tube-in-tube structural system is adopted in the structural design. In the construction drawing design phase, according to the latest adjustments of the structural system, the elastic-plastic time-history analysis under rare earthquake was performed on the structure to check the seismic performance of the structure under rare earthquake. In the elastic-plastic time-history analysis, ABAQUS software and autonomously developed S2A program were used to accurately simulate the elasticity and plasticity of the structural members of beams, columns, shear walls, braces and slabs in stress-strain level. Geometric nonlinearity was considered in analysis process, and the explicit integration computing method was implemented. The result shows that the seismic performances of the whole structure and most of the structural members can meet the requirements of codes and performance goals. The plasticity region based elastic-plastic time-history analysis method plays an important role in the optimization of the structural system of this project.Keywords:China Zun Tower; out-of-code high-rise building; elastic-plastic time-history analysis; seismic design; ABAQUS
作者簡介：李華峰，碩士，工程師，Email：lihuafeng2050@163.com。
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