Anti-seismic bridge plate type rubber support

Abstract

The invention discloses an anti-seismic bridge plate-type rubber support, and relates to the field of bridge supports. The anti-seismic bridge plate-type rubber support comprises a bottom embedded part, wherein a plurality of groups of fixing cylinders are arranged at the inner upper end of the bottom embedded part; a rubber support bottom plate is arranged at the top of the bottom embedded part; a limiting main shaft is arranged at the top of the rubber support bottom plate; and the outer side of the limiting main shaft is movably sleeved with a limiting shaft sleeve. According to the invention, bottom installation preparation work is carried out by pre-burying the bottom embedded part, a self-locking column is placed in a fixing cylinder, and connecting petals are pressed between the fixing cylinder and the self-locking column by utilizing the self weight of a bridge span and a load increasing method; deformation of the connecting petals is limited through the self-locking column and the fixing cylinder together, so the connecting petals are opened in a horn shape; and a pushing face is pushed along with downward pressing of the connecting petals, self-locking teeth are further pushed through a rotating bridge to be embedded into a locking groove, and therefore, fixing is completed, overall fixing can be completed through one-time downward pressing, complex operation of bottom connection of a traditional plate type rubber support is avoided, and a construction period is greatly shortened.

Description

technical field [0001] The invention relates to the field of bridge bearings, in particular to an anti-seismic bridge plate rubber bearing. Background technique [0002] The bridge bearing is an important structural component connecting the upper structure and the lower structure of the bridge. It is located between the bridge and the pad stone. It can reliably buffer the displacement and rotation angle caused by the load and deformation of the upper structure of the bridge. It is an important force transmission device for the bridge to be transmitted to the lower structure of the bridge. There are two common types of fixed bearings and movable bearings. [0003] Among the fixed bearings, the plate rubber bearing is widely used. The plate rubber bearing is a bridge bearing product made of multi-layer natural rubber and at least two layers of thin steel plates of the same thickness, bonded, and vulcanized. The inlaid multi-layer thin steel plate improves its load-bearing cap...

AI Technical Summary

Problems solved by technology

[0005] Based on this, the purpose of the present invention is to provide an anti-seismic bridge plate rubber bearing to solve the technical problems that the existing plate rubber bearing cannot cope with earthquakes and the installation at the bottom is time-consuming and laborious

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