A three-dimensional shock-isolation bearing

Abstract

The invention provides a three-dimensional shock-isolation support, which includes an upper seat plate, a lower seat plate, and a plurality of support bodies located between the upper seat plate and the lower seat plate. A circular cavity is provided in the middle of the lower seat plate. A disc is arranged concentrically, a circular hole is provided in the middle of the upper side wall of the cavity, and a fixed column is arranged in the circular hole, and the fixed column is fixed in the middle of the disc; the support body includes an upper fixed plate, The first friction plate, the second friction plate, the rubber bearing and the lower fixing plate, the lower side of the first friction plate is concave spherical, and the upper side of the second friction plate is a convex spherical surface matching the lower side of the first friction plate The lower side of the upper fixing plate is also fixed with a limit ring and a limit tube, and the lower end of the limit tube is lower than the upper end of the lower fixed plate; elastic steel plates are arranged between the fixed column and each limit tube. Due to the adoption of the above technical proposal, the present invention has good shock isolation effect, good reset ability, and the rubber bearing is not easy to be damaged.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, in particular to a three-dimensional shock-isolation bearing. Background technique [0002] Earthquake action is a common load in structural engineering, which is the main factor leading to structural damage and structural collapse. Adopting effective protective measures for structures to avoid damage to structures under the action of earthquakes is not only related to the seismic performance of the structure itself, but also directly affects the lives of the people and the safety of the national economy and property. It has broad development prospects and economic benefits. [0003] The traditional vibration-isolation bearing is a rubber vibration-isolation bearing, which includes a rubber bearing fixed between the upper seat plate and the lower seat plate. Although the rubber bearing in the traditional seismic isolation bearing has strong compressive performance, its tensile p...

AI Technical Summary

Problems solved by technology

Although the rubber bearing in the traditional seismic isolation bearing has strong compressive performance, its tensile performance and torsion resistance are poor, and it is easy to be damaged when an earthquake occurs; and the traditional seismic isolation bearing completely relies on the rubber bearing Its own deformation is used to buffer the earthquake force, the isolation effect needs to be improved, and the reset ability is poor

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