THE SETTING BRIDGE UPPER PART STRUCTURE INSTALLATION STRUCTURE AND THIS CONSTRUCTION TECHNIQUE

摘要

PURPOSE: A temporary bridge and a construction method thereof are provided to minimize the damage of a cover plate and to reduce the direct load transmission about a girder by installing a cover plate after installing plural continued crossbeam assemblies on a girder. CONSTITUTION: A temporary bridge is composed of a temporary vent(10), a girder(20), a reinforcing member, a crossbeam assembly, and a cover plate(70). The girder is longitudinally installed on the top of the temporary vent. The girder is composed of an upper flange(22), a lower flange(24) and a web(26). The reinforcing member comprises a vertical unit and a horizontal unit. The vertical unit is vertically welded on the wed of the girder. The horizontal unit is welded to the inside of the upper and lower flanges. The crossbeam assembly has a crossbeam and a reinforcing plate. The reinforcing plate is connected to the upper flange of the girder at right angle. The web of the crossbeam is contacted to the reinforcing member. The cover plate is fixed to the top of the crossbeam at right angle.