GIRDER BRIDGE CONSTRUCTION MAKE USE OF A PART EXISTING GIRDER AND THAT EXECUTION METHOD

摘要

The present invention is to install and improve the rigidity by utilizing the existing girder to ensure the safety of the bridge by the aging and change of design standards of the railway bridge made of steel bridge,;More specifically, it is manufactured in a box-shaped lightweight structure using steel of the existing girder to minimize the reinforcement of bridges, and induces the plate-shaped bridge using the existing girder of economical structure that is not affected by the fatigue life of concrete-embedded girders. It relates to the phase structure and construction method.;The present invention comprises a conventional girder to form a perforated hole in the upper side of the I-beam to install transverse reinforcement and sheath pipe and to form a plurality of through holes in the entire surface of the I-beam to reinforce the reinforcement; A bottom reinforcing plate for reinforcing a lower portion of the existing girder by applying a bridge bearing and an adhesive;;A lower slab and an upper slab formed with a groove on an interface of the protruding girder and integrally formed;;Removing the existing girder is characterized in that the gravel and sleepers and rails are installed on the upper slab.;Railway plate bridge, reinforced concrete, slab, PC steel wire, PC composite bridge, plate bridge bridge