A three-dimensional seismic isolation bearing with sliding surface

Abstract

The invention discloses an arc surface sliding three-dimensional seismic isolation bearing, which comprises a top plate, an upper slider, a connecting rod, a lower slider, an arc slide rail, a spring, a connecting plate, a rubber bearing and a bottom plate; The slide rail has a bottom and a top surface, the top surface is provided with a slide rail, and one end of the slide rail is arc-shaped downward from the other end; the upper and lower ends of the connecting rod are fixedly connected with the upper slider and the lower slider respectively, and the top of the upper slider can be Slidingly supported in the directional slide of the bottom surface of the top plate, the lower end of the lower slider is slidably supported on the top surface slide rail of the arc-shaped slide rail, and the contact surface is made of friction material; the upper end of the spring is fixedly connected to the lower The upper and lower ends of the slider are fixedly connected to the connecting plate; the bottom of the curved slide rail is fixedly connected to the top surface of the connecting plate, the bottom surface of the connecting plate is fixedly connected to the top of the rubber bearing, and the bottom plate is fixedly connected to the bottom of the rubber bearing. The invention can solve the problem of gravity bearing in vertical shock-isolation design, has simple structure, clear force, and is favorable for large-scale production and use.

Description

technical field [0001] The invention relates to the technical fields of environmental vibration, anti-seismic and shock absorption, in particular to an arc sliding three-dimensional shock-isolation bearing, which can be used for shock / vibration reduction in ordinary buildings, special structures, bridges, and mechanical equipment. Background technique [0002] Remarkable research results have been achieved in building structure base isolation technology, but most of the research at home and abroad is about horizontal isolation, and there are still great challenges in vertical isolation. [0003] At present, many scholars at home and abroad have tried to develop many three-dimensional seismic isolation devices to simultaneously isolate horizontal and vertical earthquakes. Most of them use air springs and hydraulic oil for vertical isolation and convert vertical deformation into horizontal displacement of supports. combined shock absorbers. The biggest difficulty in vertical ...

AI Technical Summary

Problems solved by technology

Many three-dimensional seismic isolation devices cannot solve this problem well. When the weight of the superstructure is large, the impact on the seismic isolation layer caused by the self-weight of the structure makes the performance of the seismic isolation device unable to fully exert and become unstable, which limits its Possibility of mass production and use

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