钢结构连廊液压整体提升施工技术

上海金虹桥国际中心工程主体结构为"凯旋门"式结构,南北塔楼通过8层钢结构连廊连接而成。根据连廊结构形式及施工场地情况,钢结构连廊采用计算机控制液压整体提升技术进行施工。介绍整体提升技术的施工方案选择、提升工艺原理、施工工艺流程等情况。同时对提升吊点进行验算,对结构变形进行监测。结果表明,吊点强度及结构变形均满足要求。

CONSTRUCTION TECHNOLOGY OF LIFTING THE OVERALL STEEL CORRIDOR BY HYDRAULIC TECHNIQUE

Shanghai Jinhongqiao International Center has a similar main structure with "triumph gate",and tower bridges of south and north are connected by 8-layer steel corridor.Taking account of the corridor structure and construction sites,this paper proposed a construction technology of lifting the overall steel corridor by hydraulic pressure controlled by computers.Construction plan,process principles and construction process were discussed in detail. At the same time,the locations of lifting point were calculated and possible changes in steel structure were detected.The results showed that both of the strength of lifting point and structural deformation could meet the requirements.