上海中心大厦桩-土-结构Miranda模型的地震反应分析
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摘要
采用ANSYS软件分别就刚性地基假定下上海中心大厦Miranda模型、考虑桩-土-结构相互作用的上海中心大厦Miranda模型进行了动力时程分析,并对两者进行了比较,得出一些有益的结论。本文还提取了相互作用模型基底处的加速度耦合项,与原地震波叠加,形成修正地震波,将修正地震波输入到以刚性地基为假定的上部结构中以考虑相互作用带来的影响,为减小结构抗震计算规模提供了支撑。
In this paper,time-history analysis of the Shanghai Tower Miranda model under the assumption of the rigid foundation and the Shanghai Tower Miranda model consider the pile-soil-structure interaction is carried out,these two engineerings are compared,and some useful conclusions are concluded.The coupling term of the acceleration at the basis of the model considering the pile-soil-structure interaction is also extracted and superimposed with the former seismic wave,and the modified seismic wave is obtained.Input this wave to the upper structure,in order to consider the impact of interaction,it can provide a support in reduceing the scale of calculation.
In this paper,time-history analysis of the Shanghai Tower Miranda model under the assumption of the rigid foundation and the Shanghai Tower Miranda model consider the pile-soil-structure interaction is carried out,these two engineerings are compared,and some useful conclusions are concluded.The coupling term of the acceleration at the basis of the model considering the pile-soil-structure interaction is also extracted and superimposed with the former seismic wave,and the modified seismic wave is obtained.Input this wave to the upper structure,in order to consider the impact of interaction,it can provide a support in reduceing the scale of calculation.
引文
[1]丁洁民.上海中心大厦之建筑与结构[J].建筑技术,2012,(5):94～99Ding J M.Architectural and Structural Design ofShanghai Tower[J].Architecture Technique,2012,(5):94～99(in Chinese)
[2]卢啸,陆新征,叶列平.超高层建筑地震动强度指标探讨[J].土木工程学报,2012,45:292～296Lu X,Lu X Z,Ye L P.Discussion on the GroundMotion Intensity Measures for Super High-rise Buildings[J].China Civil Engineering Journal,2012,45:292～296(in Chinese)
[3]卢啸,陆新征,张万开,叶列平.特大地震下超高层建筑的倒塌模拟[J].中国科学(技术科学),2011,41(11):1405～1416Lu X,Lu X Z,Zhang W K,Ye L P.CollapseSimulation of a Super High-rise Building Subjected toExtremely Strong Earthquakes[J].Sci China:Tech Sci,2011,41(11):1405～1416(in Chinese)
[4]Miranda E,Akkar S D.Generalized Interstory DriftSpectrum[J].Journal of Structural Engineering,2006,132(6):840～852
[5]陈素文,严士超.高层建筑-地下室-桩-土系统的相互作用[J].建筑结构,1999,12:11～14Chen S W,Yan S C.Interaction of Tall Building-basement-pile-soil System[J].Building Structure,1999,12:11～14(in Chinese)
[6]宋贞霞,丁海平.粘弹性人工边界在大型程序中的应用[J].防灾减灾工程学报,2007,27(1):43～46Song Z X,Ding H P.The Application of ViscoelasticArtificial Boundary in Large Scale Program[J].Journalof Disaster Prevention and Mitigation Engineering,2007,27(1):43～46(in Chinese)
[7]王菲.地基土-高层建筑相互作用的动态子结构法[D].天津:天津大学,2010Wang F.Dynamic Substructure Method for Soil-Multistory Buildings Interaction System[D].Tianjin,Tianjin University,2010(in Chinese)
[2]卢啸,陆新征,叶列平.超高层建筑地震动强度指标探讨[J].土木工程学报,2012,45:292～296Lu X,Lu X Z,Ye L P.Discussion on the GroundMotion Intensity Measures for Super High-rise Buildings[J].China Civil Engineering Journal,2012,45:292～296(in Chinese)
[3]卢啸,陆新征,张万开,叶列平.特大地震下超高层建筑的倒塌模拟[J].中国科学(技术科学),2011,41(11):1405～1416Lu X,Lu X Z,Zhang W K,Ye L P.CollapseSimulation of a Super High-rise Building Subjected toExtremely Strong Earthquakes[J].Sci China:Tech Sci,2011,41(11):1405～1416(in Chinese)
[4]Miranda E,Akkar S D.Generalized Interstory DriftSpectrum[J].Journal of Structural Engineering,2006,132(6):840～852
[5]陈素文,严士超.高层建筑-地下室-桩-土系统的相互作用[J].建筑结构,1999,12:11～14Chen S W,Yan S C.Interaction of Tall Building-basement-pile-soil System[J].Building Structure,1999,12:11～14(in Chinese)
[6]宋贞霞,丁海平.粘弹性人工边界在大型程序中的应用[J].防灾减灾工程学报,2007,27(1):43～46Song Z X,Ding H P.The Application of ViscoelasticArtificial Boundary in Large Scale Program[J].Journalof Disaster Prevention and Mitigation Engineering,2007,27(1):43～46(in Chinese)
[7]王菲.地基土-高层建筑相互作用的动态子结构法[D].天津:天津大学,2010Wang F.Dynamic Substructure Method for Soil-Multistory Buildings Interaction System[D].Tianjin,Tianjin University,2010(in Chinese)
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