杭州国际博览中心72m跨焊接球曲面网架施工技术  

CONSTRUCTION TECHNOLOGY OF THE 72m-SPAN CURVED SPACE TRUSS WITH WELDED JOINTS OF HANGZHOU INTERNATIONAL EXPO CENTER

作　　者：周克[1] 董继勇[1] 曹旺 陈红春[1] 裴世赟 

机构地区：[1]中国建筑第八工程局有限公司,上海200125

出　　处：《钢结构》2015年第1期73-75,共3页Steel Construction

摘　　要：杭州国际博览中心屋顶飘带结构为抽空四角锥曲面网架,横向跨度为72m,支承在钢管柱及矩形截面彩带形拱结构上。网架安装标高位于51.453-83.423m,且为曲线型,安装难度大。根据结构造型及现场条件,利用既有主体结构的承载力,在其上部设置2台固定式和2台行走式塔吊,采用＂分块吊装法＂施工。为保证分块单元的拼装精度,设计了一种可调式球托装置,取得了较好的效果。The rooftop ribbon structure of the Hangzhou International Expo Center was curved space trusses with welded hollow spherical joints.Its span was 72 meters.It was supported by steel pipe columns and arch structures with rectangular section.Due to its high elevation which was between 51.453 mand 83.423 mand curved shape,the installation was very difficult.Based on the structural shape and site conditions,two fixed cranes and two walking cranes were installed on uppering structure by utilizing a high bearing capacity of the main structure.The method of partitioning hoisting was used to install the space truss.In older to ensure the accuracy of the assembly,variable supports for the spherical joint were designed and the results were good.

关 键 词：曲面网架 焊接球 行走式塔吊 可调式球托 分块吊装 

分 类 号：TU758.11[建筑科学—建筑技术科学]