罕遇地震下上海中心超高层的性能化抗震设计
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摘要
参照CECS160(《建筑工程抗震性态设计通则》)和ASCE41(《American Society of Civil Engineers/SEI 41—06》),研究确定拟建的上海中心超高层建筑结构的性能化抗震设计目标,提出了直接用于该结构的基于材料本构关系的性能化抗震设计方法,以及基于位移的性能化抗震设计控制指标,选取合适的结构单元模型与合适的非线性动力分析技术相结合的方法,对上海中心超高层结构进行整体抗震性能评估.为该结构设计提供了有益的建议,并为基于位移的性能化抗震设计方法积累了资料.
Based on CECS160 and ASCE41,performance design levels and objects of Shanghai Tower are proposed.A computational strategy for dynamic analysis of seismic behavior of the building is put forward,in which the nonlinear stress-strain relationship of structural materials is directly adopted rather than concentrated plastic hinge.The corresponding performance-based seismic design objects of primary members are determined.The suitable finite elements and a reliable nonlinear dynamics analysis technique are selected to accomplish the performance evaluation of Shanghai Tower.Valuable suggestions about the performance seismic design are proposed for the structure.The results provide useful background materials for further study of the performance-based seismic design of similar buildings.
Based on CECS160 and ASCE41,performance design levels and objects of Shanghai Tower are proposed.A computational strategy for dynamic analysis of seismic behavior of the building is put forward,in which the nonlinear stress-strain relationship of structural materials is directly adopted rather than concentrated plastic hinge.The corresponding performance-based seismic design objects of primary members are determined.The suitable finite elements and a reliable nonlinear dynamics analysis technique are selected to accomplish the performance evaluation of Shanghai Tower.Valuable suggestions about the performance seismic design are proposed for the structure.The results provide useful background materials for further study of the performance-based seismic design of similar buildings.
引文
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[2]Federal Emergency Mangement Agency.Nehrp Guidelmes forthe Seismic Rehablitation of Buildings[S].Washington D C:Federal Emergency Management Agency,1997.
[3]American Society of Civil Engineers.Seismic rehabilitation ofexisting buildings[S].Reston:ASCE/SEI 41-06,2007.
[4]林同炎,S.D.斯多台斯伯利,高立人,等.结构概念和体系[M].北京:中国建筑工业出版社,1999.LIN Tongyan,Sidney D Stotesbury,GAO Liren,et al.Structural concepts and systems for archtects and engineers[M].Beijing:China Architecture&Building Press,1999.
[5]钱稼茹,罗文斌.静力弹塑性分析:基于性能/位移抗震设计的分析工具[J].建筑结构,2000.30(6):23.QIAN Jiaru,LUO Wenbin.Static pushover analysis—ananalytical tool for performance/displacement-based seismicdesign[J].Building Structure,2000,30(6):23.
[6]谢礼立,马玉宏,翟长海.基于性态的抗震设防与设计地震动[M].北京:科学出版社,2009.XIE Lili,MA Yuhong,ZHAI Changhai,Performance-basedseismic design and design ground motion[M].Beijing:SciencePress,2009.
[7]尹华伟,汪梦甫,周锡元.结构静力弹塑性分析方法与改进[J].工程力学,2003,20(4):45.YIN Huawei,WANG Mengfu,ZHOU Xiyuan.Studies andimprovements on structural static pushover analysis method[J].Engineering Mechnics,2003,20(4):45.
[8]杨溥,李英民,王亚勇,等.结构静力弹塑性分析方法与改进[J].建筑结构学报,2000,21(1):44.YANG Pu,LI Yingmin,WANG Yayong,et al.A study onimprovement of push-over analysis[J].Journal of BuildingStructures,2000,21(1):44.
[9]SEAOC Vision 2000.Performance-based seismic engineering ofbuildings[R].Sacramento:Association of California,1995.
[10]中国地震工程局力学研究所.CECS160—2004建筑工程抗震性态设计通则[S].北京:中国计划出版社,2004.Institute of Engineering Mechanics of China EarthpuakeAdminstratration.CECS160—2004 General rule forperformance-based seismic design of buildings[S].Beijing:China Planning Press,2004.
[11]吕西林.超限高层建筑工程抗震设计指南[M].上海:同济大学出版社,2009.LU Xilin.Seismic design guidelines for tall buildings beyondthe scope of design codes[M].Shanghai:Tongji UniversityPress,2009.
[12]JGJ 3—2002高层建筑混凝土结构技术规程[S].北京:中国建筑工业出版社,2002.JGJ 3—2002 Technical specification for concrete structuresof tall building[S].Beijing:China Architecture&BuildingPress,2002.
[13]同济大学建筑设计研究院.上海中心大厦项目结构超限审查会送审报告分册一:主篇[R].上海:同济大学建筑设计研究院,2009.Architectural Design&Research Insititute of TongjiUniversity.Inspection report(1):beyond the scope of designcodes of Shanghai Tower[R].Shanghai:Architectural Design&Research Insititute of Tongji University.
[14]同济大学建筑设计研究院.上海中心大厦项目结构超限审查会送审报告分册二:专题[R].上海:同济大学建筑设计研究院,2009.Architectural Design&Research Insititute of TongjiUniversity.Inspection report(2):beyond the scope of designcodes of Shanghai Tower[R].Shanghai:Architectural Design&Research Insititute of Tongji University.
[15]R.克拉夫,J.彭津.结构动力学[M].王光远,译.2版.北京:高等教育出版社,2006.Ray Clough,Joseph Penzien.Dynamics of structures[M].Translated by WHANG Guangyuan.2nd ed.Beijing:HigherEducation Press,2006.
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