韩小娟，  梁金桐，  朱立刚，  刘  钢
  （奥雅纳工程咨询（上海）有限公司，上海 200031）

[摘要] 介绍了上海某带有薄弱层的超高层项目基于性能化的抗震设计。项目包括两栋超过200m的塔楼和4层裙房及4层地下室，塔楼采用框架一核心筒结构。重点介绍了其中一座超高塔楼的超限情况和基于性能的抗震设计目标及实现，整体结构采用通过弹性分析进行设计，并通过动力弹塑性时程分析进行复核设计。结果表明结构体系是安全可行的，为此类结构的设计和应用提供参考。
[关键词] 超高层；抗震性能目标；抗震分析；薄弱层；弹塑性时程分析
中图分类号：TU318    文献标识码：A  文章编号：1002-848X(2012) Sl-0079-05

Performance-based seismic design and discussion of aultra-high building in Shanghai
Han Xiaojuan, Andrew Luong, Zhu Ligang, Liu Gang
( Arup Intemational Consultants( Shanghai)  Ltd., Shanghai 200031, China)

Abstract: The seismic design for a ultra-high building with soft storey was introduced. The project is composed of two towers lugher than 200m, podium with 4 storeys and basement with 4 storeys.  Frame-core structure system is used in the towers. The seismic performance-based design of one out-of-codes tower was concentrated on. The global structure was designed as elastic in conventional earthquake and checked through time-history plastic and elastic analysis in rare occurrence earthquake. All the analysis results show the structure is safe, and can be taken as reference for similar structure design.
Keywords: uha-lugh building; seismic performance target; seismic analysis; soft storey; elastic-plastic time-history analysis