成都新世纪环球中心东二区钢结构连廊工程,由于施工高度、跨度及构件质量较大,常规起重设备吊装非常困难,施工难度大,高空原位散拼及其他方法都不理想。通过多方案比选,采用了依次从屋面连廊桁架、16～18层钢框架、13～14层桁架在1层楼面拼装,液压同步整体提升的施工方案。此方法打破了常规从下至上的安装流程,实际的施工结果与方案的方法、验算吻合,效果显著。 Due to the high construction height, span and large components, conventional hoisting equipment is very difficult to hoisting, construction is difficult, high-altitude in-situ scattered spelling and other methods are not ideal. Through the comparison and selection of multiple schemes, the construction scheme that the truss of roof corridor, the 16 ~ 18-story steel frame, the 13 ~ 14-storey trusses are assembled on the first floor and the overall hydraulic synchronization is adopted has been adopted. This method to break the conventional bottom-up installation process, the actual construction results and program methods, checking consistent, the effect is significant.