非对称平面转体桥梁称重、配重施工技术研究

Research on Weighing and Counterweight Construction Technology of Asymmetric Planar Swivel Bridge

平面转体桥梁广泛应用于上跨公路、铁路工程中,转体结构位于桥梁曲线段时由于结构的不对称产生不平衡力矩。调整结构施工顺序利用结构自身作为部分配重,再用配重块平衡,通过称重确定结构实际不平衡力矩进行二次配重消除不平衡力矩的施工技术为类似转体桥梁施工积累经验。

Planar swivel bridges are widely used in upper-span highway and railway projects.When the swivel structure is located in the curved section of the bridge,unbalanced moments are generated due to the asymmetry of the structure.The technology adjusts the construction sequence of the structure uses the structure itself as a partial weight,and then balances with a weight,and determines the actual unbalanced moment of the structure by weighing and carry out secondary counterweight to eliminate the unbalanced moment.The construction technology accumulates experience for the construction of similar swivel bridges.