（中南建筑设计院股份有限公司， 武汉 430071）

［摘要］针对呼和浩特汽车客运东站建筑造型特点，提出了组合拱的结构形式，实现了建筑与结构完美统一。采用SAP2000软件对结构进行了静力、动力和稳定性分析。分析结果表明，恒载和温度作用对结构起控制作用；风荷载和地震作用影响较小；拱单元间的折板（梁）结构对整体结构影响较大，纵向H型钢梁、折板（梁）结构与钢管混凝土拱圈的连接方式对结构整体刚度和稳定性影响很大，进而提出了实现节点刚接的方法。最后介绍了拱形屋盖的滑移施工方案和钢管混凝土拱内混凝土浇筑的关键问题及解决方案。

［关键词］组合拱结构； 稳定分析； 节点设计； 滑移施工

中图分类号：TU398+.9文献标识码：A文章编号：1002-848X(2018)17-0001-07

Design and analysis of composite arch structure of Hohhot East Passenger Station

 Ji Han,  Li Ting, Sun Zhaomin,  Hu Zidong

(Central-South Architectutal Design Institute Co.,  Ltd.,  Wuhan 430071, China)

Abstract:According to the architectural characteristics  of Hohhot East Passenger Station, the structural form of the composite arch was proposed to realize the perfect unification of architecture and structure. The static, dynamic and stability analyses of the structure were performed by SAP2000 software. The analysis results show that the dead load and thermal action control the structure properties; the effects of wind load and seismic action are minor; the folded plate (beam) structure between the arch elements has a great influence on the overall structure, and the connection between the longitudinal H-shaped steel beam, the folded plate (beam) structure and the concrete-filled steel tubular arch ring have great influence on the overall stiffness and stability of the structure. The method of implementing the node rigid connection was proposed. Finally, the sliding construction scheme of the arched roof, and the key problems and solutions for concrete pouring in the concrete-filled steel tubular arch were introduced.

Keywords:composite arch structure; stability analysis; node design; sliding construction

作者简介：纪晗，博士，高级工程师，Email：csadi_jih@zonaland.cn。