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天津西站中央站房屋盖结构首次为空间弯扭箱形截面构件交叉形成的大跨度联方网格筒壳结构,结构跨度大,质量大,施工控制难度大。结合工程实际情况,选用重型吊装设备分区分段吊装施工方案。通过选用圆管组成三角形支撑塔架,有效缩短工期。采用主动控制提升技术,完成高空合龙口高精度合龙,并引入施工力学监测系统,确保施工全过程安全、可控。
For the first time, the roof structure of the central station of Tianjin West Railway Station is a large-span joint grid shell structure formed by the cross-section of curved box-shaped box girder. The span of the structure is large, of great quality and construction control is difficult. Combination of the actual project, the selection of heavy lifting equipment sub-regional lifting construction program. Triangular support tower through the selection of tubes to effectively shorten the construction period. The use of active control to enhance the technology to complete high-altitude Closure of high-precision closure, and the introduction of construction mechanics monitoring system to ensure that the whole process of construction safety and control.