海门文化中心剧院大跨度连体结构弱连接支座选型分析  

Analysis on weakly-connected bearings type selection on large-span connected structure of Haimen Cultural Center Theater

作　　者：李亮 LI Liang(Architects&Engineers Co.,Ltd.of Southeast University,Nanjing 210096,China)

机构地区：[1]东南大学建筑设计研究院有限公司,南京210096

出　　处：《建筑结构》2023年第2期50-54,共5页Building Structure

基　　金：东南大学建筑设计研究院有限公司科研项目(2020-14)。

摘　　要：海门文化中心剧院由三栋塔楼连接而成,塔楼之间通过弱连接体连接,连接体最大跨度达80m。通过动力微分方程的定性推导明确连体结构分析的重点为弱连接连体结构支座的水平刚度。对整体结构进行了多遇地震作用下的弹性时程分析和罕遇地震作用下的弹塑性时程分析,对比不同弱连接支座对结构的变形、内力以及塔楼动力特性的影响,得出铅芯橡胶支座最为合理。分析结果表明,连体结构通过铅芯橡胶支座连接时能够发挥弱连接作用,减小连接体对塔楼的不利影响,同时能满足支座的变形要求。Haimen Cultural Center Theater consists of three towers connected by weak connection with a maximum span of 80m.Through the qualitative derivation of the dynamic differential equation,it is clear that the key point of the analysis of the connected structure is the horizontal stiffness of the weakly-connected structure bearings.The elastic time-history analysis of the whole structure under frequent earthquakes and elasto-plastic time-history analysis under rare earthquakes were carried out,and the influence of different weakly-connected bearings on the deformation,internal force and dynamic characteristics of the tower was compared.It is concluded that the lead rubber bearing is the most reasonable.The analysis results show that the connected structure with the lead rubber bearing can play a weakly-connected role,reduce the adverse impact of the connection on the tower,and meet the deformation requirements of the bearing.

关 键 词：海门文化中心剧院 弱连接 橡胶支座 弹性钢支座 隔震设计 支座水平刚度 

分 类 号：TU318[建筑科学—结构工程]