POSITION ADJUSTMENT METHOD AND DEVICE FOR CONNECTION OF BRIDGE GIRDER

PROBLEM TO BE SOLVED: To provide a method and device capable of easily and accurately performing, even if a bridge girder has a weight of several tens of tons, position adjustment in a state with a load of a fraction of the weight. SOLUTION: The position adjustment method for connection of a connecting bridge girder to an existing bridge girder comprises steps of transferring a setting beam with the connecting bridge girder placed thereon over the existing bridge girder; rockably connecting the connecting bridge girder to the setting beam by a second hinge part; connecting the setting beam to the existing bridge girder at a position different from the second hinge part by a first hinge part; pushing the connecting bridge girder together with the setting beam with the first hinge part as a fulcrum; lowering the connecting bridge girder with the first hinge part as the fulcrum in a manner of maintaining a balance by a wire rope while leaving the setting beam; and giving slight rotation to the setting beam with the first hinge part as the fulcrum to adjust the height of the connecting bridge girder. COPYRIGHT: (C)2008,JPO&INPIT