Novel seismic mitigation and absorption support and changing method thereof

Abstract

The invention relates to a novel seismic mitigation and absorption support comprising a support body, an upper connection steel plate and a lower connection steel plate, wherein the upper connection steel plate and the lower connection steel plate are arranged at the upper/lower part of the support body, the support body is connected with the upper/lower connection steel plate through a sliding mechanism or a rolling mechanism in a sliding manner, the upper/lower side surface of the upper/lower connection steel plate is provided with a sleeve and an anchoring bolt, and the lower/upper side surface of the upper/lower connection steel plate is provided with a limiting stop block for limiting the horizontal sliding of the support body; and a connecting mechanism for mounting a pull rod is arranged on the circumferences of an upper steel plate and a lower steel plate of the support body. According to the novel seismic mitigation and absorption support disclosed by the invention, the friction coefficient of the support body and the upper/lower connection steel plate is small so that the removal and the change are easy; due to the limitation of the limiting stop block, the support body does not generate the horizontal sliding during regular use and does not interfere the shearing deformation of rubber in the support as well; and a change method of the support is simple, convenient and safe in operation, is not limited by the site condition, does not need to use large-scale jacking devices, has a short change periodand high efficiency and is low in cost.

Description

technical field [0001] The invention relates to a shock absorbing and isolating device used in bridges and construction projects and a replacement method thereof, in particular to a novel shock absorbing and isolating support and a replacing method thereof. Background technique [0002] The shock-absorbing and isolation bearings used in bridges and construction projects are composed of rubber, stiffened steel plates, connecting steel plates, anchor bolts, upper steel plates, basins, spherical caps, lower steel plates, etc., in which the flexibility of the rubber provides good horizontal deformation ability, and the stiffening The steel plate can enhance the vertical stiffness of the bearing. Therefore, the shock-absorbing rubber bearing not only has a good vertical bearing capacity, bears the weight of the structure, but also has an excellent deformation capacity, so that the bridge or building structure can withstand changes in ambient temperature or Displacement occurs du...

AI Technical Summary

Problems solved by technology

[0004] 1. Replacing is troublesome, labor-intensive and time-consuming

When it needs to be replaced, the upper structure must be jacked up, the anchor nuts or steel plates must be removed to take out the entire support, and then the new support will be moved in for re-anchoring or welding. Or buildings, due to the difficulty of jacking up, large-scale equipment needs to be used, which not only has a large amount of work and high cost, but also has a long replacement cycle, which affects the safe use of bridges or buildings;

[0005] 2. Some building structures are impossible or not allowed to be jacked up, or the site does not allow the installation of large-scale equipment. At this time, it is very difficult or impossible to replace the support. For safety, more complicated remedial measures can only be taken, resulting in add more investment

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