范  重，彭  翼，赵长军，李  丽，胡纯炀，谭成冬
(中国建筑设计研究院，北京100044)

[摘要] 大跨度菱形空间桁架是基于建筑造型产生的一种新的桁架形式。本文介绍了苏州火车站菱形交叉桁架屋盖结构体系的设计要点，包括结构体系的布置特点、荷载取值、动静力分析、施工模拟以及防连续倒塌分析等，分析方法和结果可供类似结构参考。
[关键词] 菱形空间桁架；有限元分析；施工模拟；防连续倒塌

    Design of the Large Span Roof Structure of Suzhou Railway Station
    Fan Zhong, Peng Yi, Zhao Changjun, Li Li, Hu Chunyang, Tan Chengdong
    ( China Architecture Design and Research Group, Beijing 100044, China)

Abstract: Based on the architectural scheme,a new type of the large-span thombic spatial truss is adopted in the Suzhou Railway Station. The key techniques are presented about the roof structure formed with thombic cross-coupling trusses, including the structural arrangement, load combinations, dynamic and statistic analysis, construction simulation and analysis of preventing sequential collapse, etc. The analytical methods and some conclusions are useful for the similar projects.
Keywords: rhombic spatial truss; construction simulation, preventing sequential collapse analysis