Steel spring reinforced multidirectional buffering limiting energy consumption type bridge anti-seismic check block

Abstract

The invention relates to the technical field of bridge seismic resistance, in particular to a steel spring reinforced multidirectional buffering limiting energy consumption type bridge anti-seismic check block which comprises a steel corbel and a check block structure, the steel corbel is fixed to the upper portion of the side wall of a bridge pier, and the check block structure comprises an upper concave check block and a lower square check block; also comprises steel springs, wherein the steel springs are fixed below the two sides of the concave check block. and comprises a buffer device, wherein the buffer device comprises a movable steel plate, a compression spring and a triangular stop block. Overlarge displacement between the upper main beam and the lower pier is limited in the transverse bridge direction and the longitudinal bridge direction of the bridge, and beam falling earthquake damage of a beam body in the transverse bridge direction and the longitudinal bridge direction is prevented; collision between adjacent beams at the expansion joint is transferred to a plurality of bridge anti-seismic stop blocks, and expansion impact damage at the expansion joint and local damage of a collision area between adjacent beams are reduced; the check block has a certain reset capability; material price is low, structure is simple, and construction is convenient.

Description

technical field [0001] The invention relates to the field of anti-seismic technology of bridges, in particular to a steel spring-reinforced multi-directional buffer-limiting energy-dissipating bridge anti-seismic stopper. Background technique [0002] When the earthquake comes, first of all, the safety of people's lives and property is threatened. On the other hand, the earthquake has caused serious damage to the bridge engineering in the earthquake area, cutting off the external traffic of the earthquake-stricken area, causing an island effect, and causing serious damage to the people after the earthquake. The disaster relief work caused great difficulties, which led to subsequent secondary disasters and indirectly made the economic losses more serious. In addition, the construction cost of the bridge is high and the construction quantity is large. The bridge is an important node and hub of the traffic lifeline, but due to its structural characteristics, the bridge is also ...

AI Technical Summary

Problems solved by technology

[0004] The collapse of bridges in earthquakes will bring many hazards, and there are still many bridges designed according to the original design standards in my country, or bridges that have been damaged to a certain extent. They cannot meet the social needs of today's large number of vehicles and heavy transportation weight. Renovating these bridges requires a lot of manpower and material resources

[0005] In order to limit the large displacement of the upper girder of the bridge in the transverse bridge direction, reinforced concrete stoppers are often installed on both sides of the top of the pier cap girder, and there are relatively few preventive measures for restricting the displacement of the upper girder along the bridge and vertical direction

However, beams falling along the direction of the bridge often occur after the bridge is subjected to earthquakes, and the collision between the ordinary reinforced concrete block and the beam body is a rigid collision, which is easy to cause local damage. The damage of the repair cannot well limit the displacement of the beam body

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