Resettable bridge abutment anti-seismic chock block

Abstract

The invention relates to a resettable bridge abutment anti-seismic chock block, and belongs to the technical field of bridge shock resistance. The resettable bridge abutment anti-seismic chock block consists of a bridge abutment dry wall, a concrete wedge-shaped chock block, a vertical steel bar, a horizontal steel bar, a polystyrene foam isolation block and an anti-adhesion thin layer; the concrete wedge-shaped chock block is positioned above the bridge abutment dry wall, the anti-adhesion thin layer is arranged between the concrete wedge-shaped chock block and the bridge abutment dry wall, and the concrete wedge-shaped chock block is connected with the bridge abutment dry wall through the vertical steel bar; the polystyrene foam isolation block is positioned at the inner lower part of the concrete wedge-shaped chock block and on the anti-adhesion thin layer; and the vertical steel bar passes through the anti-adhesion thin layer and the polystyrene foam isolation block thereon, and the horizontal steel bar is connected with the vertical steel bar at the upper end of the polystyrene foam isolation block. The resettable bridge abutment anti-seismic chock block has resettable property and easily repaired property, can effectively prevent the bridge abutment dry wall and a bridge abutment pile foundation from being damaged, can enhance the transverse shock resistance of a bridge, and can be widely applied to high seismic regions or bridges with high anti-seismic performance requirement.

Description

technical field [0001] The invention relates to an abutment stopper, in particular to a resettable abutment antiseismic stopper, which can be applied to the abutment antiseismic stopper of bridges with high requirements on seismic performance or seismic isolation bridges, and belongs to the field of bridge antiseismic technology. Background technique [0002] The main function of the abutment is to support the superstructure of the bridge and maintain the stability of the backfill of the embankment behind the abutment. It is the weak link of the bridge structure during earthquakes. The bridge damage in many major earthquakes shows that the abutment was seriously damaged in the earthquake. [0003] In real earthquake action, in addition to the vertical earthquake action, the bridge is also subjected to the simultaneous action of two components of the horizontal earthquake, but usually people pay more attention to the seismic performance and seismic response of the bridge under...

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the defects of the above-mentioned ordinary abutment anti-seismic block, the present invention provides a resettable abutment anti-seismic block, which solves the problem that the bridge superstructure and the abutment are prone to lateral beam drop under the action of strong earthquakes in engineering. , or the abutment drywall and abutment piles are damaged due to excessive lateral force

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