Study on control of cantilever construction of long-span continuous rigid frame bridges

In recent years,with the continuous progress of the construction technology of continuous rigid frame bridge,cantilever pouring are widely used in practical engineering as a continuous rigid frame bridge construction method. There is a process for bridge structure to change from static structure to hyperstatic structure in the process of the cantilever construction. Therefore,attention should be paid to the bridge linear,internal forces,camber and deflection factors during the construction in order to meet the requirements of the bridge structure.