熊天齐，  顾  辉，  包  佐，  陈绩明
    （上海建筑设计研究院有限公司，上海 200041）

[摘要] 通过对曹妃甸市民服务中心四塔连体的工程实例分析，介绍连体结构的计算分析和设计准则。研究地震作用与温度作用以及混凝土刚度退化对连体结构的影响、楼板在设计中不同情况的考虑、连体部分楼板舒适度等，为此类结构设计提供参考。
[关键词] 连体结构；大跨度钢桁架；包络设计；振动舒适度；刚度退化
中图分类号：TU318    文献标识码：A  文章编号：1002-848X(2012) Sl-0328-04

Structure design of the citizen service center of Caofeidian
Xiong Tianqi, Gu Hui, Bao Zuo, Chen Jiming
( Shanghai Institute of Architectural Design ＆Research Co., Ltd., Shanghai 200041, China)

Abstract: The citizen senuce center of Caofeidian is a conjoined structure with four towers. Computational analysis and design principle of the special structure were introduced. The design load and effect, the consideration of concrete slab in the steel structure design, the vibration comfort of the floor, the stiffness degradation of concrete structure were discussed, which can be reference for similar projects.
Keywords: conjoined structure; large-span steel truss; envelop design; vibration comfort; stiffness degradation