A three-dimensional shock-isolation bearing

Abstract

The invention discloses a three-dimensional shock-isolation bearing, which relates to the field of building and bridge shock-isolation technology. The three-dimensional shock-isolation bearing includes: a support assembly, a vertical shock-isolation assembly and a horizontal shock-isolation assembly. The upper connection plate, the middle connection plate and the lower connection plate, the vertical vibration isolation assembly is arranged between the upper connection plate and the middle connection plate, the horizontal vibration isolation assembly is arranged between the middle connection plate and the lower connection plate, and the horizontal vibration isolation assembly It is independent from the vertical vibration isolation components, so that both the horizontal vibration isolation components and the vertical vibration isolation components have good stability and give full play to their respective vibration isolation capabilities. At the same time, the rubber seat of the horizontal shock-isolation component is arranged inside the horizontal shock-isolation component, and is isolated from the outside world. The durability of the rubber seat is greatly improved and the durability is good.

Description

technical field [0001] The invention relates to the technical field of building and bridge shock isolation, in particular to a three-dimensional shock isolation bearing. Background technique [0002] The seismic isolation bearing is the most widely used seismic isolation device, which can prolong the natural vibration period of the structure, thereby avoiding the excellent period of the earthquake site and reducing the earthquake damage of the engineering structure. Its effectiveness has been tested in actual engineering. At present, most seismic isolation bearings can only achieve horizontal isolation. However, the magnitude of the vertical seismic action in some near-site ground motions even exceeds the amplitude of the horizontal seismic action, and the vertical seismic action can also cause serious damage to engineering structures. [0003] There are relatively few three-dimensional seismic isolation bearings that realize horizontal isolation and vertical isolation at t...

AI Technical Summary

Problems solved by technology

The vertical isolator may have horizontal displacement which may affect the stability of the vertical isolator

The horizontal shock-isolation device may be subjected to tension, resulting in tensile damage to the support, or may be destabilized and damaged under a large horizontal displacement due to a large pressure

[0005] 2. The rubber seat of the horizontal vibration isolation device is exposed to various harsh environments for a long time, which is prone to natural damage such as temperature difference and corrosion, and has poor durability

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