SEISMIC REINFORCING METHOD OF BRIDGE

摘要

The present invention relates to a seismic reinforcement method of an existing bridge to prevent a bridge slab from falling in an earthquake by restricting the movement of an existing bridge without a bridge seat in a longitudinal direction and in a direction perpendicular to the longitudinal direction. The movement of a bridge slab in a longitudinal direction and a direction perpendicular to the longitudinal direction depending on an earthquake load can be prevented by arranging a seismic reinforcement bracket for an existing bridge, which has been manufactured to reinforce the seismic performance of the existing bridge, between the girders of the bridge slab. Damage to and an impact load on the bridge slab and the seismic reinforcement bracket for an existing bridge can be reduced by forming a buffering material between the seismic reinforcement bracket for an existing bridge and the bridge slab. Damage to the buffering material can be prevented by forming a reinforcing plate inside the buffering material.