2017年7月下 施工技术 第46卷第14期 CONSTRUCTION TECHNOLOGY 83 D0I:10.7672/5js2017140083 某展览馆异形复杂管桁架钢结构施工关键技术 温纯厚 (甘肃省建设投资（控股）集团总公司，甘肃兰州730030) [摘要]某展览馆为大型异形管桁架结构.为达到屋面波浪建筑效果，屋面钢结构形式多样，起伏高差较大.采用 的满堂脚手架高空散拼焊接的安装施工为本工程的难点，尤其是相贯线切割面在高空散拼中易产生误差，需要现 场进行二次调整.通过强化管理，满足了业主及设计对异形管桁架钢结构的质量及工艺要求. [关键词]钢结构；桁架；变形：拼装；焊接；施工技术 [中图分类号]TU758 [文献标识码]A [文章编号]1002-8498(2017)14-0083-04 Key Technology of Steel Structure Construction of Special-shaped Complex Pipe Truss in an Exhibition Hall WEN Chunhou Gansu Construction Investment holding)Group General Corporation Lanzhou Gansu 730030 China) Abstract:An exhibition hall is a large special-shaped pipe truss structure.In order to achieve the effect of roofing wave construction the roof steel structure is varied and the fluctuation height difference is great. It is difficult to install and construct the full scale scaffold with high strength and loose welding especially the intersecting line cutting surface is prone to error in high altitude spelling the second adjustments are required on site.By strengthening the management the quality and process requirements of the steel structure of the special-shaped pipe truss are satisfied for the owner and the design. Key words:steel structures;trusses;deformation;assembly;welding;construction 1工程概况 2工程难点及特点 甘肃省庆阳市城市规划，科技展览馆位于世纪 2.1无法采用整体顶升和多点支撑高空拼装技术 大道西侧，民俗博物馆东侧，占地1.33hm2.工程整 本工程属于大跨度异形管桁架屋盖钢结构工 体设计为流线形长方体，由多条不同弧度不同高度 程，工程8条主轴线为8道主桁架，每道主桁架造型 的流线形长方体组成，寓意庆阳未来发展一浪高过 都不一致，形体变形幅度较大，空间形体复杂，各支 一浪，整体形状看似舞动的绸缎，层次丰富，新颖别 点标高不一致，故...
某展览馆异形复杂管桁架钢结构施工关键技术.pdf
