| 摘要 |
The present invention relates to a repairing construction method for a railway bridge and a steel composite girder used for the same. According to the present invention, the repairing construction method for a railway bridge includes: a step of constructing a steel composite girder having a cross beam connection unit and a slab connection unit on a bridge pier to face each other; a step of removing an existing sleeper supporting a rail, installing a temporary cross beam, and connecting both ends of the temporary cross beam to a cross beam connection unit of the steel composite girder; a step of dismantling and removing an existing bridge girder placed on the bridge pier in the longitudinal direction; a step of constructing a steel composite slab on the bridge pier, connecting the both ends of the steel composite slab to the slab connection unit of the steel composite girder, and integrating the connection unit of the steel composite slab and the steel composite girder; a step of filling a space formed by the steel composite slab and the steel composite girder integrated, with gravels; and a step of removing the temporary cross beam and the installing the sleeper on the same place. |
