施工技术 2011年9月下 42 CONSTRUCTION TECHNOLOCY 第40卷第349期 武汉火车站大跨度异形空间曲面钢结构变形控制技术 胡小勇1，周发榜2，段其磊2，苏君岩2，任勇2 (1.武汉铁路局，湖北武汉430071；2.中建钢构有限公司，广东深圳518040) [摘要]武汉火车站钢结构包括中央站房结构、楼面结构、雨篷结构和附属结构.中央站房和雨篷结构均为大跨度 空间双曲双拱结构，其中中央站房主拱支撑最大跨度达116m 在安装过程中桁架自身柔性较大，变形控制难度很 大.武汉火车站大跨度异形空间曲面钢结构通过施工前模拟计算，施工过程中确定合理的施工和卸载顺序并进行 合理预起拱，把结构变形控制在允许范围，取得较好效果. [关键词]铁路工程；车站；钢结构；装配；变形；卸载 [中图分类号]TU745.2 【文献标识码]A [文章编号]1002-8498(2011)18-0042-03 Deformation Control of the Large-span Special-shaped Curved Surface Steel Structure in Wuhan Railway Station Hu Xiaoyong' Zhou Fabang? Duan Qilei2 Su Junyan2 Ren Yong2 (1.Wuhan Railsoay Bureau Wuhan Hubei 430071 China: 2.China Construction Steel Structure Co.Lad.Shenzhen Guangdong 518040 China) Abstract:The steel structure of Wuhan Railway Station includes center workstation floor canopy and the appurtenant structure.The structure form of the center workstation and canopy is large-span spacial hyperbolical double-arch structure and the maximum span of main arch support of the center workstation is 116 meters.Thus the truss is flexible during assembling.The deformation control of steel structure in Wuhan Railway Station is introduced such as simulation before construction rational construction and unloading process as well as pre-setted arch value.The mentioned control measures can control the deformation in allowable ranges and good effect is gained. Key words:railway engineering;stations;steel structures;assembly;deformation;unloading 1工程概况 2变形控制思路 武汉火车站中央站房由5个主拱作为支撑，截 变形控制一直是大跨...
武汉火车站大跨度异形空间曲面钢结构变形控制技术.pdf
