Shock-absorbing large-turning-angle spherical steel support

Abstract

The invention discloses a shock-absorbing large-turning-angle spherical steel support. The shock-absorbing large-turning-angle spherical steel support comprises a box body, a base, a ball core and anupper seat plate. The base is arranged in the box body and capable of sliding in the box body, and the ball core is of a double-spherical-crown-surface structure, wherein the upper surface is an upperconvex spherical crown surface and the lower surface is a lower convex spherical crown surface. The bottom of the ball core is connected with the base in a sliding fit mode and a spherical crown surface mode, and the top of the ball core is connected with the upper seat plate in a sliding fit mode and a spherical crown surface mode. According to the shock-absorbing large-turning-angle spherical steel support, the base and the upper seat plate achieve the purpose of mutual sliding through the ball core of which the upper and lower surfaces are spherical crown surfaces, and the needs of use ofa large turning angle can be met; the circumference of the ball core is further connected to the base through tension springs to achieve the effect of preventing jumping and slipping of the ball corein the rotation process; the base is capable of sliding in the box body, and cushioning springs can achieve the buffering effect, so that the impact force of the base on the box body under the force condition is reduced, and the usage requirements of moving in various directions of the spherical steel support are satisfied; and the upper seat plate is further provided with shock absorbing springsto achieve the shock absorption effect.

Description

【Technical field】 [0001] The invention relates to the technical field of bridge supports, in particular to a shock-absorbing large-rotation-angle spherical steel support. 【Background technique】 [0002] The bridge support is an important structural component connecting the upper structure and the lower structure of the bridge. It is a device erected on the pier and supports the upper structure of the bridge on the top surface. Its function is to fix the superstructure to the abutment, withstand various forces acting on the superstructure, and transmit it reliably to the abutment; under the action of load, temperature, concrete shrinkage and creep, the support can adapt to the superstructure The rotation angle and displacement allow the upper structure to deform freely without generating additional additional internal force. [0003] The spherical bearing refers to a new type of bridge bearing developed on the basis of the basin rubber bearing, which has consistent rotation ...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the above-mentioned prior art and provide a shock-absorbing large-rotation-angle spherical steel bearing, which aims to solve the problem of low shock resistance of the spherical bearing in the prior art and the use of a hemispherical core to cause the rotation angle. The technical problem that the angle cannot meet the use requirements of larger corners

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