2016年4月下 施工技术 第45卷第8期 CONSTRUCTION TECHNOLOGY 39 D0I:10.7672/8js2016080039 重庆国金中心塔楼伸臂桁架施工技术 徐凯，袁渊，方道伟，毛进，宋利鹏 (中建三局集团有限公司成都分公司，四川成都610041) [摘要]重庆国金中心项目T塔楼为带有加强层的框架-核心筒结构，核心筒剪力墙采用顶模体系施工.为减小 结构侧移、提高外框架抗倾覆能力，在加强层设置了伸臂桁架腰桁架结构.由于伸臂桁架层结构复杂、构件体型 庞大，节点复杂、核心筒内外存在沉降差且穿插有顶模体系、土建施工，因此对吊装、节点处理、矫正、焊接、终固均 提出较高要求，施工难度大、危险性较高、施工质量难以控制.主要介绍了复杂条件下超高层建筑伸臂桁架结构的 施工方法. [关键词]高层建筑；框架核心筒结构；顶模体系；伸臂桁架；施工技术 [中图分类号]TU758.1 [文献标识码]A [文章编号]1002-8498(2016)08-0039-04 Construction of Tower Building Suspended Truss Structure in Chongqing IFC Xu Kai Yuan Yuan Fang Daowei Mao Jin Song Lipeng Chengdu Branch of China Construction Third Engineering Bureau Co.Lad.Chengdu Sichuan 610041 China) Abstract:Chongqing IFC TI tower is frame-core tube structure with strengthened story.The jacking formwork system is used for the construction of the shear wall in the core tube.In order to reduce lateral displacement and improve the overturning moment capacity of outside framework suspended truss-waist truss structure is installed in strengthened story.Due to the plexity of suspended truss structure the large size and plex joint of ponents the differential settlement in and out of the core tube and the interspersion with jacking formwork system and civil engineering construction it puts forward high requirements for hoisting joint treatment correct welding and final fixation.The construction of suspended truss structure in plex environment is introduced in detail. Key words:tall buildings;frame-core tube structure;jac...
重庆国金中心塔楼伸臂桁架施工技术.pdf
