PREVENTING GIRDER METHOD FROM ITS BUCKLING IN REPLACING COMPOSITE GIRDER DECK WITH PRECAST CONCRETE DECK

摘要

[purpose];When replacing the composite girder top plate with the precast top plate, remove the already installed composite girder top plate and prevent the collapse of the main girder before combining the girder and the precast top plate when constructing the precast top plate. It aims at eliminating the fault in countermeasures.;[Configuration];Place the box removing part formed on the precast upper plate on the upper flange of the main girder, and set the distance between the box removing parts in the direction of the main girder as a fixed point distance, and temporarily fix the precast upper plate and the main girder at the box removing part, and precast upper plate After the completion of the hypothesis of releasing the fixing is characterized in that the concrete is poured into the minus the box.