Steel box girder splicing and positioning device for bridge construction

The invention relates to a steel box girder splicing and positioning device for bridge construction, and belongs to the technical field of bridge construction. The steel box girder splicing and positioning device for bridge construction comprises a fixing support, an electric sliding rail and a bearing support, the electric sliding rail is installed between the fixing support and the bearing support, and a positioning mechanism is installed on the surface of the bearing support; a worker can sequentially calibrate the verticality and the levelness of the steel box girder through the positioning mechanism, and in the process that the steel box girder is hoisted and placed on the top of a bridge buttress, the vertical positioning strips can prevent the steel box girder from shaking by limiting the two sides of the steel box girder, so that it can be ensured that the steel box girder is vertically placed on the top of the bridge buttress, and the safety of the steel box girder is guaranteed. And the design of th