A three-dimensional vibration isolation device

Abstract

The invention provides a novel three-dimensional seismic isolation device which comprises a horizontal seismic isolation component, a transition steel structural platform and a vertical seismic isolation component. The horizontal seismic isolation component is fixedly connected with the vertical seismic isolation component by the transition steel structural platform; and the vertical seismic isolation component comprises an upper sleeve, a lower sleeve, a lower bottom plate, a belleville spring, a middle guide rod and viscous damping fluid. The novel three-dimensional seismic isolation device is simple and convenient to manufacture and is convenient to construct, install and maintain; horizontal damping and vertical damping are decoupled mutually and are not involved mutually. Due to adoption of the belleville steel plate spring, the novel three-dimensional seismic isolation device has low vertical stiffness when vertically moving, so that the vertical period of an upper structure is prolonged and the earthquake action is reduced; and meanwhile, a good viscous hole is formed by a gap between the belleville spring and the lower sleeve for the viscous damping fluid in the lower sleeve and a butterfly steel plate takes an effect of a piston in a viscous damper, so that the vertical earthquake action is further reduced by energy dissipation and safety of the upper structure is ensured.

Description

technical field [0001] The invention belongs to the technical fields of construction engineering and bridge engineering. The invention relates to a three-dimensional shock-isolation device for a building shock-isolation layer, a bridge shock-isolation layer and an equipment shock-isolation layer, in particular to a three-dimensional shock-isolation device. Background technique [0002] Laminated rubber isolation technology plays an important role in reducing the damage caused by horizontal earthquakes to buildings and bridge structures. It has good horizontal deformation capacity and energy dissipation effect, so it can effectively isolate buildings and bridges when used in isolation layers. The damage to buildings and bridges caused by the horizontal vibration of earthquake resistance has been well tested in many actual earthquakes in recent years. However, the disadvantage of the laminated rubber isolation bearing is that it does not have the function of shock absorption ...

AI Technical Summary

Problems solved by technology

However, the disadvantage of the laminated rubber isolation bearing is that it does not have the function of shock absorption in the vertical direction. From the seismic records measured by previous major earthquakes, the vertical earthquake occupies a lot of weight in the entire seismic energy. How to solve the problem of vertical vibration? Seismic isolation has always been a major problem plaguing the entire seismic isolation field, especially for some very important buildings, bridges and important equipment and equipment

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