北京当代MOMA结构基于性能的抗震设计及静力弹塑性分析
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摘要
为了保证结构的抗震性能,近年来在复杂工程的结构设计中逐渐采用了基于性能的结构抗震设计方法。本文结合北京当代MOMA结构,描述了基于性能的抗震设计方法在结构设计中的具体应用及实施措施,同时采用静力弹塑性方法对结构进行不同方向、不同水准地震作用下的弹塑性反应分析。计算分析结果显示,结构在中震作用下所有柱及剪力墙未发生屈服、悬挑部分钢结构及其支撑柱保持弹性,实现了性能设计提出的性能目标,说明基于性能的抗震设计提高了结构的抗震性能,保证了"大震不倒"的设防目标。
In order to provide better aseismic capacity,performance-based design methodology is adopted for more and more complex structures.This paper describes the performance-based aseismic design methodology and specific measures about one complex building structure named as Beijing MOMA.Nonlinear static analysis was also performed with different load directions and earthquake levels.The results show that the structure meets performance requirements of design,columns and shear-walls,steel members of cantilever and supporting columns below the cantilever are all elastic,which proves that the structure's seismic performance is improved with the use of performance-based design methodology and the fortification objective of no-collapse under rare earthquake is guaranteed as well.
In order to provide better aseismic capacity,performance-based design methodology is adopted for more and more complex structures.This paper describes the performance-based aseismic design methodology and specific measures about one complex building structure named as Beijing MOMA.Nonlinear static analysis was also performed with different load directions and earthquake levels.The results show that the structure meets performance requirements of design,columns and shear-walls,steel members of cantilever and supporting columns below the cantilever are all elastic,which proves that the structure's seismic performance is improved with the use of performance-based design methodology and the fortification objective of no-collapse under rare earthquake is guaranteed as well.
引文
[1]GB 50011—2001建筑抗震设计规范[S]GB 50011—2001Code for seismic design of buildings[S](in Chinese))
[2]ATC-40 Seismic evaluation and retrofit of concrete buildings[S].USA:Applied Technology Council,1996
[3]FEMA-356 NEHRP guidelines for the seismic rehabilitationofbuilding[s S].USA:FederalEmergencyManagementAgency,2000
[4]熊向阳,戚震华.侧向荷载分布方式对静力弹塑性分析结果的影响[J].建筑科学,2001(5):8-13(Xiong Xiangyang,Qi Zhenhua.The influence of lateral load patterns on theresults of static pushover analysis[J].Building Science,2001(5):8-13(in Chinese))
[5]崔烨.静力弹塑性Pushover分析方法的研究和改进[D].西安:西安建筑科技大学,2004(Cui Ye.Theory study andimprovement of static elastic-plastic Dushaver analysismethod[D].Xi’an:Xi’an University of Architecture andTechndogy,2004(in Chinese))
[6]黄嘉,柯长华,束伟农.北京电视中心主楼非线性地震反应分析与结构抗震性能评价[C]//第十八届全国高层建筑结构学术交流会论文集(上).北京:中国建筑科学研究院,2004:60-67
[7]肖从真,徐培福,王翠坤,等.体型收进对高层建筑结构抗震性能的影响[J].建筑结构,2003(9):12-15(XiaoCongzhen,Xu Peifu,et al.Effects on the aseismic behaviorof tall buildings with step-back[J].Building Structure,2003(9):12-15(in Chinese))
[8]徐培福,傅学怡,王翠坤,等.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005
[9]滕智明.钢筋混凝土基本构件[M].北京:清华大学出版社,1987
[2]ATC-40 Seismic evaluation and retrofit of concrete buildings[S].USA:Applied Technology Council,1996
[3]FEMA-356 NEHRP guidelines for the seismic rehabilitationofbuilding[s S].USA:FederalEmergencyManagementAgency,2000
[4]熊向阳,戚震华.侧向荷载分布方式对静力弹塑性分析结果的影响[J].建筑科学,2001(5):8-13(Xiong Xiangyang,Qi Zhenhua.The influence of lateral load patterns on theresults of static pushover analysis[J].Building Science,2001(5):8-13(in Chinese))
[5]崔烨.静力弹塑性Pushover分析方法的研究和改进[D].西安:西安建筑科技大学,2004(Cui Ye.Theory study andimprovement of static elastic-plastic Dushaver analysismethod[D].Xi’an:Xi’an University of Architecture andTechndogy,2004(in Chinese))
[6]黄嘉,柯长华,束伟农.北京电视中心主楼非线性地震反应分析与结构抗震性能评价[C]//第十八届全国高层建筑结构学术交流会论文集(上).北京:中国建筑科学研究院,2004:60-67
[7]肖从真,徐培福,王翠坤,等.体型收进对高层建筑结构抗震性能的影响[J].建筑结构,2003(9):12-15(XiaoCongzhen,Xu Peifu,et al.Effects on the aseismic behaviorof tall buildings with step-back[J].Building Structure,2003(9):12-15(in Chinese))
[8]徐培福,傅学怡,王翠坤,等.复杂高层建筑结构设计[M].北京:中国建筑工业出版社,2005
[9]滕智明.钢筋混凝土基本构件[M].北京:清华大学出版社,1987
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