2014年1月下 施工技术 第43卷第2期 CONSTRUCTION TECHNOLOGY 35 D0I:10.7672/sgjs2014020035 大跨度采光棚钢屋架凌空50m安装技术* 苏建华，王家通2，张磊2 (1.广州建筑股份有限公司，广东广州510030；2.中建钢构有限公司，广东深圳518040) [摘要]广州市电视台新址工程采光棚钢屋架距离楼面近50m 钢屋架的安装过程没有搭设满堂脚手架或立柱式 胎架，其安装完全是在塔楼楼顶通过分段吊装的方法凌空作业完成.提出了采用梁式胎架支撑和三角斜撑等提高 钢结构安装精度的施工措施，介绍了钢桁架的分段吊装方法，给出了钢屋架在高空临边作业时的安全技术措施，并 且对施工过程钢桁架的变形进行了监测.实践证明，该施工技术能够节省措施费用和工期. [关键词]钢结构；屋面；采光棚；梁式胎架；三角斜撑；监测 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2014)02-0035-03 Installation Technology of the Large-span and 50 Meters Suspended Steel Roof Su Jianhua' Wang Jiatong2 Zhang Lei2 (1.Guangzhou Construction Engineering Co.Ltd.Guangzhou Guangdong 510030 China; 2.China Construction Steel Structure Co.Ltd.Shenzhen Guangdong 518040 China) Abstract:The steel roof in new Guangzhou TV Station is 50 meters high from the floor.During the roof construction neither scaffolding nor column brace is used.It just assembles suspended by lifting segments.Then construction measures such as beam's strut and triangle's strut are put forward to increase the steel structure's assemble accuracy.And lifting methods of the heavy trusses are introduced. And technical safety measure during the roof's construction towards border and the monitoring of the truss's position are also introduced.It proves that the technology can save fee and time. Key words:steel structures;roofs;skylight;beam-style jig;triangle support;monitoring 1工程概况 体系，施工精度不易控制.如图1所示. 广州市电视台新址工程总建筑面积约30万2施工部暑 m2 包括1栋22层东塔楼，1栋22层西塔楼，2层裙 总体施工流程为：先将50m高的幕墙钢柱分成 楼和2层地下室，建筑总高度为97.75...
大跨度采光棚钢屋架凌空50m安装技术.pdf
