Rolling type basin rubber bearing

Abstract

The invention discloses a rolling type basin rubber support. The rolling type basin rubber support comprises a lower support plate provided with a basin-shaped groove, a pressure-bearing rubber plate arranged in the basin-shaped groove, a middle lining plate which is arranged on the pressure-bearing rubber plate in an overlapped mode and partly exposed out of the basin-shaped groove and an upper support plate which is arranged on the middle lining plate through a friction structure; the friction structure is characterized in that vertically and horizontally arrayed upper rolling paths are arranged on the surface, opposite to the middle lining plate, of the upper support plate, lower rolling paths which have the same array as the upper rolling paths are arranged on the surface, opposite to the upper support plate, of the middle lining plate, and rolling balls are arranged between the opposite upper rolling paths and lower rolling paths. By means of the rolling type basin rubber support, the moving capacity of the basin rubber support can be improved, and the friction environment can be improved.

Description

technical field [0001] The invention relates to a bridge bearing, in particular to a basin rubber bearing. Background technique [0002] There are many types of bridge bearings, such as spherical bearings, plate rubber bearings, pot rubber bearings, etc. There are two main functions of bridge bearings. One is to effectively load the bridge load (dynamic load and static load) The second is to overcome the beam body bias caused by the displacement of the beam body due to braking force, ambient temperature, concrete shrinkage or creep, and load action. For example, in the lateral direction of the bridge body, if the side length of the beam body is long due to changes in the ambient temperature, while the distance between the pier columns remains unchanged, if the beam body and the pier columns are rigidly connected, the rigidly connected part may be It is sheared or the beam body generates a large shear force on the connecting part. The bridge supports make the beam body pres...

AI Technical Summary

Problems solved by technology

However, since there is only one roller, and the direction in which the friction force is reduced is determined, that is, the horizontal direction perpendicular to the axis of the roller, and since there is only one roller, the sliding plate acts as an auxiliary support, during the sliding process Among them, the stopper located on the front side of the sliding direction will be subjected to relatively complex and relatively large shear force (parallel to the friction force on the upper surface of the lower support plate, the sliding plate will touch the plate with an edge due to pushing forward, and will produce overturning moment), prone to failure

Images