Bridge quakeproof buffer device and quakeproof bridge

Abstract

The invention relates to the technical field of bridge earthquake resistance, and particularly relates to a bridge quakeproof buffer device and a quakeproof bridge, wherein the bridge quakeproof buffer device comprises a shock-absorbing buffer cushion block, a stop block is arranged on one side of the shock-absorbing buffer cushion block, and the stop block is fixedly connected with the shock-absorbing buffer cushion block. The quakeproof bridge comprises a plurality of bridge piers and a bridge abutment, wherein a main beam is arranged above the bridge piers and the bridge abutment, the bridge abutment is fixedly connected with at least two bridge quakeproof buffer devices, the bridge quakeproof buffer devices are arranged on the two sides of the main beam in the transverse direction respectively, and the side, which is provided with the shock-absorbing buffer cushion block, of the bridge quakeproof buffer device faces the main beam. According to the bridge quakeproof buffer device, the stop blocks are fixed to the bridge abutment, the buffering and anti-collision effects of the shock-absorbing buffer cushion blocks are utilized, the transverse impact effect of the main beam is reduced, the transverse earthquake resistant performance of a bridge is improved, the safety of a bridge structure is improved, construction is facilitated when the bridge quakeproof buffer device is arranged on the bridge abutment, and the invested engineering cost is low.

Description

technical field [0001] The invention relates to the field of bridge anti-seismic technology, in particular to a bridge anti-seismic buffer device and an anti-seismic bridge. Background technique [0002] For bridges built in high-intensity earthquake areas, under the action of earthquake force, the longitudinal and transverse seismic responses of the main girder of the bridge will have a large seismic response, which will have a very adverse effect on the safety of the bridge structure. The longitudinal direction and the transverse direction refer to the direction along the bridge and the direction across the bridge respectively. [0003] Therefore, the bridge structure needs to have high seismic performance. The traditional seismic method relies on the elastic-plastic deformation of components to absorb seismic energy. In order to meet the seismic requirements of bridge structures, methods of enlarging component sections or strengthening structural rigidity are often used....

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem in the prior art that for long-span bridges, under the action of earthquake force, the longitudinal and lateral directions of the main girder will produce a relatively large seismic response, which will have a very adverse impact on the safety of the bridge structure. , providing a bridge anti-seismic buffer device and an anti-seismic bridge

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