高空悬臂钢连廊提升后微顶推施工技术

Micro-jacking Construction Technology After Lifting of Cantilever SteelCorridor in High Altitude

在安踏海悦中心项目中,高空悬臂钢连廊采用地面错位拼装、错位整体提升、高空多维微顶推施工工艺进行吊装安装,但悬臂钢连廊提升受办公楼连廊牛腿支座及公寓楼幕墙龙骨影响大。为保证钢连廊施工质量和安全,结合工程实例,依托BIM模型进行虚拟建造,采用SAP2000进行非线性施工模拟,对提升、顶推、卸载工艺进行分析,实现同步控制,解决超高层建筑空中钢连廊施工问题,取得良好的社会与经济效益。

In the ANTA Haiyue Center project,the cantilever steel corridor in high-altitude adopts the construction technology of dislocated assembly on the ground,dislocated integral lifting and high-altitude multi-dimensional micro-jacking.But the cantilever steel corridor lifting is greatly affected by the corbel support of the office corridor,the curtain wall keel of the apartment building curtain wall.In order to ensure the quality and safety,combined with engineering examples,BIM model is used for virtual construction,and the process of lifting,jacking and unloading is simulated by using SAP2000,which was used for nonlinear construction simulation,the construction problem of steel corridor in high-altitude is solved,good social and economic effects is achieved.