朱洁静，  杨必峰，  张  坚
    (现代设计集团上海建筑设计研究院有限公司，上海200041)

[摘要] 介绍了天安阳光半岛这一大底盘多塔楼结构的抗震超限情况，采取针对性的计算分析措施和抗震构造措施。对结构的弹性时程分析、静力弹塑性分析及大底盘楼层楼板的复杂应力分析过程做了详细的描述，指出设计中应引起重视的问题，可作为同类结构设计的有益参考。
[关键词]  多塔楼结构；大底盘；静力弹塑性分析；抗震设计方法

Seismic Design of Tian' an Peninsula Project
Zhu Jiejing, Yang Bifeng, Zhang Jian
( Xian Dai Architectural Design Group, Shanghai Institute of Architectural Design & Research Co. , Ltd.,  Shanghai 200041,  China)

Abstract: The Tian' an peninsula project was a multi-tower structure based on a whole podium, which was out of the range of Chinese aseismic code. The analysis method and earthquake resistant constructional measure was introduced.  Some analysis processes were described in detail, including elastic time-history analysis, pushover analysis and the enlarged base floor slab stress analysis. The experience in this project could be an useful reference for similar structure.
Keywords: multi-tower structure; enlarged base; static elasto-plastic analysis; aseismic design methods