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人民日报社报刊综合业务楼屋顶大跨度双曲面拱形钢桁架安装技术 被引量:2

Installation of Large-span Hyperboloid Steel Arch Truss for the People's Daily Project
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摘要 结合人民日报社报刊综合业务楼屋顶塔冠大跨度双曲面拱形钢桁架散件运输、现场组拼分段吊装合龙过程,介绍了分段钢桁架的地面组拼胎架制作、三维坐标控制卧式组拼过程。钢桁架安装采用钢支撑代替承重脚手架,介绍了钢支撑的设计以及分段钢桁架的就位姿态调整、吊装合龙、卸载等技术要点,并对钢支撑形式和卸载后的变形进行验算,解决了架空层难以搭设承重脚手架的难题,保证了桁架的安装质量,取得了很好的效果。 Large-span hyperboloid tower crown of the main building of People's Daily project is made of arched truss parts. Detailed description of steel support designing, adjustment of pose placement of steel truss segments, lifting, closure, unloading and other points is made by using procedure of segments transportation, in-site assembling, segments lifting, closure process. Furthermore, a specialized software is used to check the form of steel structure support and deflections after unloading. This carries out a solution to ensure that overhead layer supports the scaffold. It also ensures installation quality of trusses, therefore, achieves good results.
出处 《施工技术》 CAS 北大核心 2014年第6期33-35,共3页 Construction Technology
基金 中国新兴建设开发总公司2011科技立项:双曲面弧形超高层复杂钢结构安装(企业2011-3)
关键词 钢结构 安装 钢桁架 组拼胎架 卸载 steel structures installation steel truss assembly jig unloading
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