［摘要］杭州国际博览中心长约432m，宽约264m，规模大、功能多，结构体系较复杂。工程主体部分采用钢管混凝土柱与大跨钢桁架组成的框架结构，屋顶花园钢结构采用曲面钢网壳和单层球壳，附属办公楼采用现浇混凝土框架\|剪力墙结构。介绍了初步设计中的一些关键性问题及相应的技术措施，包括荷载取值、结构分析与选型、超限情况及抗震性能化设计、结构超长论证分析等，该工程目前已经通过超限审查。
［关键词］钢管混凝土柱；大跨钢桁架；框架\|剪力墙；单层球壳；屋顶花园；超长结构；超限审查
中图分类号：TU318.82文献标识码：A文章编号：1002-848X(2011)09-0022-06
Preliminary structural design of Hangzhou International Expo Center
Ma Hongbu, Shen Li, Zhang Yanping, Qi Wuhui, Zhu Zhongyi, Xu Bin, Li Guoqiang, Liu Yingqiu, Zhang Lin, Yang Yuchen(Beijing Institute of Architectural Design, Beijing 100045, China)
Abstract:Hangzhou International Expo Center,which is about 432m long and 264m wide, is a large-scale, multifunctional and complicated structure. The main body of the project adopts the frame structure combined by concrete-filled steel tubular column and long-span steel truss. Meanwhile, the roof garden is composed of the curved steel structure and single-layer spherical lattice shell, in addition the subsidiary office building is made of the frame-shear wall structure. The key problems and relevant technical measures in the preliminary design are introduced, including loads calculation,structural analysis and forms, the out-of-code problems, the performance-based seismic design and analysis of the super-length structure etc. Up to now, the project has already passed the out-of-code evaluation.
Keywords:concrete-filled steel tubular column; long-span steel truss; frame-shear wall; single-layer spherical lattice shell; roof garden; super-long structure; out-of-code evaluation
作者简介：马洪步,硕士,工程师,Email:mahongbu@163.com。
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