A hydraulic shock absorber and method of use thereof

Abstract

The invention discloses an oil pressure shock-absorbing and isolating support and a method for using the same. The upper plate groove is arranged above the lower plate groove, the lower part of the upper plate groove and the upper part of the lower plate groove are provided with grooves, and the upper plate groove The upper part and the lower part of the lower plate groove are equipped with pre-embedded steel bars; the shape of the steel pad is cuboid and set on the upper surface of the shock-absorbing layer, and the shock-absorbing layer is set in the groove on the upper part of the lower plate groove. It extends into the groove of the upper plate groove and contacts the bottom surface of the groove; the groove of the upper plate groove is provided with baffles on the side of the steel pad body, and each baffle and the inner wall of the groove of the upper plate groove are provided with a For shock-absorbing hydraulic cylinders, each baffle is connected to the groove of the upper plate through a position adjustment mechanism. The position adjustment mechanism can make the baffle contact with the side of the steel pad body or make the gap between the baffle plate and the side of the steel pad body Leave a preset distance. The invention can control the hysteresis characteristic of the support, prolong the natural vibration period of the structure, and improve the anti-seismic performance of the structure; and can be used as a fixed, one-way or two-way support.

Description

technical field [0001] The invention relates to the field of bridge engineering, in particular to an oil pressure shock-absorbing and isolating support and a using method thereof. Background technique [0002] Bridge bearings are important structural components connecting the bridge superstructure and substructure. It can reliably transmit the reaction force and deformation (displacement and rotation angle) of the bridge superstructure to the bridge substructure, so that the actual stress of the structure is consistent with the calculated theoretical diagram. According to the possibility of its displacement, it is divided into fixed support and movable support: ①The fixed support transmits vertical force and horizontal force, allowing the upper structure to rotate freely at the support but cannot move horizontally; ②The movable support only Transmits vertical forces, allowing the superstructure to rotate freely and move horizontally at the supports. The movable support can...

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Problems solved by technology

[0004] In the prior art, for a certain bridge, the form of the bridge support has been determined once it is installed, and it is difficult to replace or change the direction of movement. At the same time, the hysteretic characteristics of the shock-absorbing and isolating support cannot be adjusted, and the structure cannot be improved as required. seismic performance

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