（1 郑州财经学院土木工程学院， 郑州 450000； 2 广西建工集团第五建筑工程有限责任公司， 柳州 545001）

［摘要］通过自主研制钢结构拼装胎架并将其应用于机场、体育中心等装配式大型钢桁架结构工程，发现钢胎架为工程钢结构地面拼装焊接、正立整体拼装、一次吊装就位等施工工艺带来极大便利；通过严格控制火焰煨弯等施工工艺，可提高大跨度悬挑弧形桁架的加工、吊装和拼装精度，缩短工程施工工期，同时保证作业人员安全。

［关键词］胎架； 钢桁架结构； 火焰煨弯； 临时支撑

中图分类号：TU398-7文献标识码：A文章编号：1002-848X(2018)15-0066-05

Development of steel structure assembled bed-jig and its application in large-span steel truss

Ji Shuai1, Lu Jizhong2, Ling Yaqing2, Lin Jun2, Bai Jiejun2

(1 Department of Civil Engineering， Zhengzhou Institute of Finance and Economics, Zhengzhou 450000, China; 2 Guangxi Construction Engineering Group Fifth Construction Engineering Co.,  Ltd.,  Liuzhou 545001, China)

Abstract:A steel structure assembled bed-jig was developed and applied in assembled large-scale steel truss structure such as airports and sports centers. This application greatly facilitates construction technologies such as ground assembly and welding, upright entire assembly, and one-time installation. It can improve the  accuracy, the lifting and assembly of large-span cantilever trusses, shorten the construction period and ensure the safety of workers by controuing the construction technology of  the hot bending of belfast truss strictly.

Keywords:bed-jig; steel truss structure; hot bending; temporary support

作者简介：姬帅，硕士，讲师，Email：603604793@qq.com。