大型树状结构双枝不等重斜向原位柔性提升施工关键技术  

Key Construction of Large Tree-type Structure with Unequal Weight of Both Branches Using Oblique in Situ Flexible Lifting

作　　者：孙晓阳[1] 陈勇 陈海洲[1] 李赟[1] 张帅[1] 

机构地区：[1]中国建筑第八工程局有限公司总承包公司,上海200135 [2]南京牛首山文化旅游集团有限公司,江苏南京211100

出　　处：《施工技术》2017年第15期25-30,共6页Construction Technology

基　　金：2014年住房和城乡建设部科学技术计划(2014-K3-007)

摘　　要：南京牛首山佛顶宫上部采用大穹顶覆盖,由2个大型树状钢结构柱、铝合金大穹顶屋盖共同组成受力体系。利用有限元施工模拟分析,计算机三维模拟放样、安装,复杂构件数控加工、双枝不等重斜向原位全柔性提升工艺、旋转式提升横梁结构、钢丝绳张紧装置等,解决了矿坑空间狭窄及既有混凝土平台荷载受限情况下,超大、超重、超高树状结构安装及快速卸载的难题;加快了现场安装精度,减少了材料消耗,降低了施工成本,保证了施工安全及工程质量;推动了大型树状钢结构安装技术的进步。The upper of Foding Temple cave, Niushoushan in Nanjing, was covered with large dome, which is composite of two large tree-type steel columns and aluminum alloy roofs. By using the finite element analysis of construction simulation, three-dimensional computer simulation lofting and installation, complex parts of CNC machining, double branches unequal oblique in situ flexible lifting technology, rotary lifting beam structure, wire rope tensioning device, and so on, it solves the difficulty of oversized, overweight tree-type structure installation and unloading in narrow mine space and under the limit condition of existing concrete platform loads. This technology accelerates the installation accuracy, reduces the material consumption and reduces the construction cost and ensures construction safety and engineering quality.

关 键 词：钢结构 树状柱 穹顶 屋盖 柔性提升 施工技术 

分 类 号：TU758[建筑科学—建筑技术科学]