Multi-directional buffer limiting energy dissipation resettable bridge anti-seismic check block structure

Abstract

The invention discloses a multi-directional buffering limiting energy dissipation resettable type bridge anti-seismic check block structure. The structure comprises a steel corbel and a stop block structure, the steel corbel is fixed above the side wall of the pier through a steel corbel bolt; the stop block structure comprises a steel top plate fixed to the bottom of the main beam through a steeltop plate bolt and a square stop block fixed to the top of the steel corbel. A concave stop block of an inverted-U-shaped structure is fixed to the bottom of the steel top plate. A rough friction face is formed on the upper surface of the square check block and makes close contact with the top of the groove in the bottom of the concave check block, and a plurality of check block compression springs are arranged between the upper portion of the side wall of the square check block and the side wall of the groove in the bottom of the concave check block. The multi-directional limiting energy dissipation device can achieve multi-directional limiting energy dissipation, and is low in material price, simple in structure and convenient to construct.

Description

Technical field [0001] The invention belongs to the technical field of bridge earthquake resistance, and specifically relates to a multi-directional buffer limit energy consumption resettable bridge earthquake resistance block structure. Background technique [0002] With the development of my country's economic strength, more and more investment in transportation construction. The construction of large-scale transportation infrastructure has promoted the development of urban and regional economy. In order to save land resources, my country's transportation construction advocates the use of bridges instead of roads, which also brings opportunities for the rapid development of bridge engineering in my country. Now more and more high-speed railways, viaducts, and long-span bridges are being built. There are more than one million bridges built and under construction in my country. [0003] my country is located between multiple seismic zones and is a country prone to earthquakes. The...

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Problems solved by technology

[0006] 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

[0007] 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 limiting the displacement of the upper girder in the direction of the bridge and vertically

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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