平安金融大廈超限高層結(jié)構(gòu)抗震性能優(yōu)化分析
王朝波 羅永峰 沈祖炎 陳春暉
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（1 同濟大學土木工程學院 上海 200092；2 華東建筑設(shè)計研究院 上海 200002）［提要］ 中國平安金融大廈為超限高層結(jié)構(gòu)，采用由鋼管混凝土柱、鋼梁及鋼支撐構(gòu)成的中央框架-支撐體系，以及鋼骨混凝土柱和鋼骨混凝土梁組成的外框架。介紹結(jié)構(gòu)主體的優(yōu)化設(shè)計和抗震性能控制分析。結(jié)構(gòu)的工程方案設(shè)計與優(yōu)化，采用現(xiàn)行國家規(guī)范并參考國外標準的先進部分，制訂全面的優(yōu)化設(shè)計原則。針對突破國內(nèi)規(guī)范限制內(nèi)容，采取相應的措施調(diào)整結(jié)構(gòu)抗側(cè)剛度，并增強結(jié)構(gòu)的延性。經(jīng)過結(jié)構(gòu)優(yōu)化設(shè)計特別是抗震性能改進分析，既保證了結(jié)構(gòu)的安全性、使用性，同時提高了結(jié)構(gòu)的經(jīng)濟性。［關(guān)鍵詞］ 超限高層 設(shè)計原則 優(yōu)化 靜力彈塑性推覆分析 延性Optimal Analysis of Seismic Performance for the Ping′an Finance Out-of-code High-rise Building/Authors:Wang Zhaobo 1, Luo Yongfeng 1, Shen Zuyan 1, Chen Chunhui 2(1 College of Civil Engineering, Tongji University, Shanghai 200092, China; 2 East China Institute of Architecture Design and Research, Shanghai 200002, China)Abstract:Ping′an finance building is an out-of-code high-rise building. The center part of the structure is a frame brace system composed of concrete filled tube columns, steel beams and steel braces. The surrounding frame is composed of steel reinforced concrete columns and beams. The optimal design and the seismic behavior controlling analysis are presented. According to the national specifications and other advanced foreign standards, the strategy and principle for optimal design of the building are proposed. For the out-of-code items, the corresponding measures are adopted to adjust the lateral stiffness and enhance the ductility of the structure. After the optimal design including the seismic behavior improving analysis, the building structure is suitable and reliable for safe use. The steel consumption of the building is reduced.Keywords:out-of-code high-rise building; design principle; optimization; nonlinear static analysis; ductility*受中國平安金融大廈結(jié)構(gòu)優(yōu)化設(shè)計(050308)項目資助。
