腾讯（北京）总部大楼大悬挑钢结构向心关节轴承节点制作与安装技术.pdf

施工技术 2016年9月上 12 CONSTRUCTION TECHNOLOGY 第45卷第17期 D0I:10.7672/sgjs2016170012 腾讯（北京）总部大楼大悬挑钢结构向心关节轴承 节点制作与安装技术* 张宝燕，周进兵，张浩 (中建三局第一建设工程有限责任公司，湖北武汉430048) [摘要]腾讯（北京）总部大楼悬挑达81m 采用了向心关节轴承节点，轴向静力荷载设计值为42000kN 为国内最 大的建筑用向心关节轴承.为保证其使用功能的发挥，首先从节点构造和CAE技术角度对其进行设计研究，其次 从制作和施工角度对其高效施工进行研究.研究表明，CAE技术可很好地模拟分析节点受力，探索了节点承载力 失效的判断准则，有效节约试验成本；增加贴板，减小中耳板板厚，降低工厂焊接难度；延伸中耳板，断开盖板，能够 避免结构受力后盖板层状撕裂，同时避免焊接中耳板，保证中耳板传力路径连续；槽口快速对接技术能够提高安装 工效. [关键词]钢结构；大悬挑钢结构；自润滑向心关节轴承；有限元分析；安装 [中图分类号]TU391 [文献标识码]A [文章编号]1002-8498(2016)17-0012-05 Manufacture and Installation Technology of Radial Spherical Plain Bearing Joint for Large Cantilever Steel Structure of Tencent(Beijing)Headquarters Building Zhang Baoyan Zhou Jinbing Zhang Hao (China Construction Third Bureau First Engineering Co.Lad.Wuhan Hubei 430048 China) Abstract:Cantilever span of the building of Tencent(Beijing)Headquarters Building is 81m.The radial spherical plain bearings are used.The design value of a axial static load is 42 000kN.It is the biggest radial spherical plain bearing which is used in architecture.In order to ensure the application of the radial spherical plain bearing firstly the study of the design is carried out from the joint structure and CAE technology points.Secondly the study of the efficient construction is carried out from manufacture and construction points.The results show that the application of CAE technology can save the experimental cost.The failure criteria of bearing capacity of the joint are acceptable.In order to reduce...