康力電梯測試塔動力彈塑性時程分析
路江龍,楊律磊,朱尋焱,龔敏鋒,王迅飛,談麗華
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路江龍,楊律磊,朱尋焱,龔敏鋒,王迅飛,談麗華(蘇州工業(yè)園區(qū)設(shè)計研究院股份有限公司, 蘇州 215021)[摘要]康力電梯測試塔地上36層,高度268m,結(jié)構(gòu)高寬比達(dá)11.4,采用筒中筒結(jié)構(gòu)體系,屬超限高層結(jié)構(gòu)。選用ABAQUS和PERFORM-3D軟件,基于不同的積分求解方式和分析假定,對結(jié)構(gòu)進行了罕遇地震下的彈塑性時程分析。結(jié)果表明,兩者在結(jié)構(gòu)整體抗震性能、破壞情況等方面的計算結(jié)果基本一致。考慮一組人工波(X向和Y向)、兩組天然波(X向和Y向)共6個工況,對比分析結(jié)構(gòu)在地震作用下的變形、內(nèi)力和損傷情況,并為優(yōu)化結(jié)構(gòu)設(shè)計和加強薄弱部位提供參考依據(jù)。結(jié)果表明,結(jié)構(gòu)在罕遇地震下最大彈塑性層間位移角滿足規(guī)范和性能目標(biāo)要求;連梁作為第一道防線,出現(xiàn)不同程度的損傷,達(dá)到耗能設(shè)計目的;結(jié)構(gòu)整體震害較輕,滿足“大震不倒”的設(shè)防要求。[關(guān)鍵詞]超限高層; 動力彈塑性; 基于性能; 罕遇地震中圖分類號:TU352文獻(xiàn)標(biāo)識碼:A文章編號:1002-848X(2013)14-0034-06Dynamic elastic-plastic time-history analysis of Canny Elevator test towerLu Jianglong, Yang Lülei, Zhu Xunyan, Gong Minfeng, Wang Xunfei, Tan Lihua(Suzhou Industrial Park Design & Research Institute Co., Ltd., Suzhou 215021, China)Abstract: The 36-story super high-rise Canny Elevator test tower with tube-in-tube structural system, is 268m in height and 11.4 in height-width ratio. The time-history response under rare seismic earthquake was studied by ABAQUS and PERFORM-3D with different integral solving methods and analysis assumptions. Modal analysis shows that results from both models are very similar in overall seismic performance and failure mode. Two natural waves and one generated wave were used to define six different seismic cases. In order to optimize the structural design and strengthen weak parts of structure, the structural displacements, member forces and damage of structure under these six seismic cases were captured. The results show that: the maximum inelastic story drift under rare seismic earthquake is within the limit of norm and meet the purpose of seismic design; different damages are found in coupling beam which is the first resist part of structure and can meet the energy dissipation purpose; the seismic damage of structure is acceptable and can meet the requirements of no collapse under rare earthquake.Keywords: super high-rise building; dynamic elastic-plastic; performance-based; rare earthquake作者簡介:路江龍,高級工程師,一級注冊結(jié)構(gòu)工程師,英聯(lián)邦特許結(jié)構(gòu)工程師(MIStructE,CEng),Email:lujianglong@sipdri.com。參考文獻(xiàn)[1]JGJ 3—2010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,2011.[2]GB 50011—2010建筑抗震設(shè)計規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2010.[3]GB 50010—2010混凝土結(jié)構(gòu)設(shè)計規(guī)范[S]. 北京:中國建筑工業(yè)出版社,2011.[4]PANG RUI, LIANG SHUTING, ZHU XIAOJUN, et al. Nonlinear timehistory analysis of a complex highrise building with diagonal gird structure [C]// Proceedings of the Seventh International Conference on Steel Structures, 2012: 1128-1135.[5]談麗華,路江龍,楊律磊,等.某雙塔連體超高層公寓樓彈塑性時程分析[J].建筑結(jié)構(gòu),2012,42(S2):90-95.[6]張瑾,談麗華,路江龍,等.蘇州現(xiàn)代傳媒廣場辦公樓彈塑性時程分析[J].建筑結(jié)構(gòu),2012,42(S2):72-77.