广交会大厦钢结构高效加工技术.pdf

2010年7月 施工技术 第39卷第7期 CONSTRUCTION TECHNOLOGY 51 广交会大厦钢结构高效加工技术 陈建航，李剑洺，张春辉 (广东省建筑工程集团有限公司，广东广州510635) [摘要]广交会大厦采用钢框架-钢筋混凝土筒体结构，其钢结构基本采用板厚大于36mm的高层建筑结构用钢组 焊而成，焊接时拘束度大，节点构造复杂，焊接残余应力大；焊接精度要求高，工期紧张.采用优化、整合工艺路线 和设备资源，对内节点式矩形钢管柱形成了高效、高精度流水线生产加工技术；通过优化坡口形式、振动时效 (VSR)消除残余应力等有效措施，实现了钢结构高效、高精度、高质量加工. [关键词]广交会大厦；钢板；加工；优化坡口；残余应力 [中图分类号]TU758.16 [文献标识码]A [文章编号]1002-8498(2010)07-0051-02 High-precision Prefabrication Technology of Steel Structure in the CIEF Building Chen Jianhang Li Jianming Zhang Chunhui Guangdong Construction Engineering Group Co. Lad.Guangzhou Guangdong 510635 China) Abstract:The CIEF building uses steel-framework and reinforced concrete cube structure.The steel structure is bound strongly by welding with steel plate of more than 36mm thickness.The node is very plex and the remaining welding stress is big.The steel structure has high welding precision and tight construction period.This project forms a highly efficient and high-precision production line for the nodes- in type rectangular steel tube column by the optimization of process route and equipment resources.The steel structure is prefabricated with high efficient high precision and high quality by optimizing bevel forms and eliminating remaining stress by VSR. Key words:the CIEF building;steel plate;prefabrication;optimizing bevel form;remaining stress 1工程概况 1)节点和外框柱采用板厚>36mm的高层建筑结 中国对外贸易中心投资兴建的琶州广交会大厦工构用钢组焊而成，本身厚板焊接时拘束度大；节点构造 程，总建筑面积87553m㎡，地下2层，塔楼41层，建筑复杂，内部隔板、劲板及牛腿对箱体的共同作用使拘束 总高度177.30m 钢框架-钢筋混凝土筒体结构.本工度更大，...