Device for synchronous construction of continuous girder bridge cantilever side span cast-in-situ section and folding section

The utility model belongs to the technical field of bridge construction and particularly relates to a device for synchronous construction of a continuous girder bridge cantilever side span cast-in-situ section and a folding section. The device solves the problems that substep folding construction is long in construction period and complex in construction process when a short side span cast-in-situ section or a valley bridge in construction of a continuous girder bridge cantilever is poured. The device comprises a supporting mechanism for providing support for the side span cast-in-situ section and the folding section. A sliding mechanism enabling beam bottoms of the side span cast-in-situ section and the folding section to slide relative to the supporting mechanism is arranged on top of the supporting mechanism, and a module system of the side span cast-in-situ section and the folding section is arranged on the sliding mechanism. The device has the advantages of achieving synchronous construction of the bridge cast-in-situ section and the side span folding section, changing a conventional method of substep construction, simplifying construction process, improving working efficiency, shortening construction period, reducing construction cost and obtaining good economic benefit.