贾卫平¹，  李忠盛¹，  崔  青²，  吕晓静¹，  王又文¹，  张全辉¹，  张  慧¹
    （1 中国建筑设计研究院中旭公司，北京100037；2 中国建筑设计研究院结构院，北京100044）

[摘要] 鄂尔多斯机场新航站楼纵向长度约500m，下部主体结构采用钢筋混凝土框架结构，梁中采用了缓粘结预应力技术。上部的屋盖为典型的大跨度空间钢结构，建筑物中部108m跨的穹顶为采用由24榀径向桁架和桁架间的单层网壳组成的锥形钢屋盖，两侧登机廊屋顶均采用网架结构，上部钢结构和下部混凝土柱的连接节点采用关节轴承支座及“Y”形支撑形式。简要介绍了工程的结构设计，望能供同类设计参考。
[关键词] 缓粘结预应力框架；“Y”形支撑；关节轴承支座；大跨空间结构；穹顶；网架
中图分类号：TU318    文献标识码：A  文章编号：1002-848X(2011) Sl-0524-04

Structural design of Ordos New Airport Building
Jia Weiping¹, Li Zhongsheng¹, Cui Qing², Lv Xiaojing¹, Wang Youwen¹, Zhang Quanhui¹, Zhang Hui¹
(1 China Arclutecture Design & Research Group Zhongxu Corporation, Beijing 100037, China; 2 China Architecture Design & Research Group Structure Institute, Beijing 100044, China)

Abstract: Ordos new airport building is 500m long, reinforced concrete frame is adopted as low-part structure, retar-bonded post-tensioned prestressed technique is adopted for beams. The roof is a typicallarge-span spatial structure. The central 108m-span dome is built of 24 radial steel tube trusses, and the roof between the steel tube trusses are built of single layer shell. The roof of the boarding gallery on the both side are space grids structure, the roof and the low-part structure are linked by the joint bearing supports and the Y-type columns. This paper gives a brief introduction for the structural design, it can be referred in similar engineerings.
Keywords: retar-bonded post-tensioned prestressed frame structure; Y-type column; bearing support; large-span spatial structure; dome; space grids