BRIDGE GIRDER REINFORCING STRUCTURE FOR GIRDER BRIDGE

摘要

PROBLEM TO BE SOLVED: To provide a bridge girder reinforcing structure for a girder bridge, which is effective as a strength restoring measure for repairing an existing girder bridge or a reinforcing measure for a newly constructed girder bridge.;SOLUTION: According to the bridge girder reinforcing structure, short reinforcing steels 5 are arranged between the plurality of bridge girders 3 which are arranged side by side in a bridge width direction, so as to extend to a length equal to a partial length of the bridge girder, and the reinforcing steels 5 and bridge girder portions 3' in parallel with the reinforcing steels 5 are embedded in a connecting concrete board 7. Then connection wires 10 extending in a bridge width direction are inserted into the reinforcing steels 5 and the bridge girder portions 3' in parallel with the same. Further the connection wires 10 are loosely penetrated into respective pipe members which are then embedded in the connection concrete board 7, followed by straining the connection wires 10 in the respective pipe members, to thereby apply prestressing to the connection concrete board 7.;COPYRIGHT: (C)2007,JPO&INPIT