北京当代MOMA隔震连体结构的整体分析  

Analysis of the seismic-isolated connected structures for MOMA

作　　者：徐自国[1] 肖从真[1] 廖宇飚[1] 张莉若[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《土木工程学报》2008年第3期53-57,共5页China Civil Engineering Journal

摘　　要：近年来我国出现了许多复杂的连体结构。拟建的北京当代MOMA工程中,采用8个设有隔震支座的空中连廊将9幢主体塔楼依次相连,从而形成环形超大规模复杂连体结构。本文针对上述连体结构,进行了考虑隔震支座非线性性质的地震响应分析,将有连体与无连体结构的动力响应进行对比。结果表明,设计中选用的隔震支座可以满足要求;由于采用隔震支座,减弱了连体结构对主体结构的影响,从而使主体结构的设计难度大为降低,保证了结构的安全性。最后,针对本工程连体结构的其他相关问题进行讨论,并给出结构设计方法。Recently more and more complicated connected structures have appeared in China.Eight towers are serially connected by seven aerial bridges for the project of MOMA（The North Part）so as to conform a grand-scale connected loop structure.In order to investigate the influences between aerial bridges and towers and to examine the maximum deformation of the design selected isolators,nonlinear dynamic analyses under earthquake were performed with consideration of the nonlinear properties.The dynamic responses of the connected and independent structures were also compared.The results reveal that the selected isolators can meet the seismic deformation requirements and that the effects of the bridges on the towers are decreased greatly.The feasibility and the safety of the structures are improved as well.

关 键 词：隔震 连体结构 动力分析 

分 类 号：TU352.12[建筑科学—结构工程] TU973.19