The invention doctrine plate girder railway bridges for railway bridges and placing equipment for improved method for improving the plate doctrine relates to, and more particularly, to the girder by installing a placing equipment and the girder reinforcement for installing prefabricated girder reinforcement to reinforce the bridge girder to the plate-shaped widely adopted in conventional railway bridge girders for the conventional girders relates to a method for improving or reinforcing. ; Improved for placing equipment for plate girder railway bridges doctrine, according to one aspect of the present invention overwritten for the plate girder railway bridges doctrine, for reinforcing the strength supporting each of the reinforcement girders and trusses for hypothesis for hanging on a lower surface, opposite ends of the truss for the hypothesis, and is characterized in that it comprises a balance of a pair of driving a railway rail above. ; This Improved equipment for plate girders hypothesis doctrine for railway bridges according to the invention can be produced and maintained reformer structure is simple and low cost. In addition, it is possible to directly access the work site using the existing laid railway rail, making the pre-girder reinforcement can be installed to move to the scene may shorten the time which the railway is blocked.
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