Tensile seismic mitigation and absorption support for bridge

Abstract

The invention belongs to the technical field of bridge construction, and relates to a bridge tensile seismic mitigation and absorption support, which is characterized in that a cavity is formed in a top shock absorption block of a base, a transverse plate is fixedly mounted on the inner wall of the bottom of the cavity, a shock absorption plate is fixedly mounted at the top of the transverse plate, and two energy consumption assemblies are arranged at the top of the shock absorption plate; the same sliding block is slidably mounted on the inner walls of the two sides of the cavity, actuating rods are rotatably mounted on the two sides of a stand column fixedly mounted in the center of the top of the sliding block, sliding plates are slidably mounted on the outer sides of two symmetrically-arranged transverse columns fixedly mounted on the inner wall of the top of the cavity, and damping springs are fixedly mounted on the sides, close to each other, of the two sliding plates. And one sides of the two acting rods are in transmission connection with damping assemblies correspondingly, the tops of the stand columns penetrate through the inner wall of the top of the cavity and extend topositions above damping blocks, and the tensile seismic mitigation and absorption support is good in shock absorption and isolation effect on a bridge.

Description

technical field [0001] The invention belongs to the technical field of bridge construction, and relates to a bridge anti-tension and shock-absorbing bearing. Background technique [0002] In recent years, shock absorption and isolation technology has been widely used in various buildings and bridge projects. However, in high-intensity earthquake areas, the vertical seismic action cannot be ignored. If there is no good connection between the bridge and the support, the main girder may break away from the support under the vertical earthquake action. Therefore, the anti-seismic bearings used for the main girder of bridges should also meet the requirements for vertical pull-out resistance, but the lack of tensile capacity of ordinary anti-seismic bearings makes it difficult to further promote the application of anti-seismic technology. The reason is that the most widely used rubber shock-absorbing and isolation bearings have poor vertical tensile strength, and their ultimate t...

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Problems solved by technology

[0004] In view of this, in order to solve the problem that the research of the existing bridge seismic isolation bearings mainly stays in the horizontal seismic isolation, and both the horizontal force and the vertical force of the earthquake need to be considered, the problem that this kind of bearing cannot be applied , providing a bridge anti-tension and shock-absorbing bearing

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