Structure for preventing bridge from collapse by flood and external shock vibration

摘要

The present invention is a reinforcing the structure by the vertical load, the bridge and the conventional load bridge of the railway bridge is down washed by overflow of the river only pier remained it relates to a collapse preventing bridge construction structure according to the shock vibration caused by flooding, and the outer in the alternate construction alternating bridge structure to design the alternating alternating PC beam that connects the pier to pier and to the bridge construction,; Lie where fish (PC) end and fish (PC), but the end of the beam to be butted against each other fixed to each other expansion and contraction of the fish (PC) beams to correct a displacement due to temperature change buffer of the beam on the bearing upper part is installed at the top surface of the piers device unit and the connecting device, by the construction and constitutes a withdrawal prevention means, including parts, when building bridges construction mountain overpass minimizes collapse of the shock-proof reinforcement and fish (PC) beam, fish (PC) can buffer the contraction and expansion of the beam there is road construction industrial excellent effects that can be constructed so that.