Vibration isolation device with tensile properties

Abstract

The invention relates to a shock isolation device with tensile property. The shock isolation device comprises an isolation layer top plate and an isolation layer bottom plate, wherein the isolation layer bottom plate is provided with a buttress, a damping support is arranged between the buttress and the isolation layer top plate, and a tensile device is arranged between the isolation layer top plate and the isolation layer bottom plate; the tensile device comprises at least a group of an upper support and a lower support upper support which are arranged correspondingly up and down, wherein the upper support is fixed on the isolation layer top plate, the lower support is fixed on the isolation layer bottom plate, the lower end of the upper support and the upper end of the lower support are provided with two electromagnets with the same oppositely arranged poles. According to the shock isolation device provided by the invention, the damage on the damping support can be prevented when the damping support is tensioned, therefore the mechanical property of the damping support can be ensured; furthermore, the shock isolation device can be applied to the tensile design of a rubber seat of a new shock isolation device, and can be applied to the tensile prevention on the rubber support of the built shock isolation device; in addition, the shock isolation device is simple in structure, clear to stress and convenient to realize.

Description

technical field [0001] The invention belongs to the field of building structure design, and in particular relates to a shock-isolation device with tensile performance. Background technique [0002] Laminated rubber bearings are the most widely used in current isolation structures, and the technology is relatively mature. The characteristics of laminated rubber bearings are that the vertical compressive stiffness is very large, and the vertical ultimate tensile stress is much smaller than the vertical ultimate compressive stress. Stress, this is because the tensile bearing capacity of the laminated rubber bearing is mainly guaranteed by the bond between the rubber and the steel plate. When the bearing is pulled, many micropores will be generated inside, and these internal damages will reduce the bearing capacity. mechanical properties. Therefore, in the design of seismic isolation structures using laminated rubber bearings, it is generally required that the rubber bearings s...

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Problems solved by technology

At present, the existing anti-tension measures are mainly to add metal chains, steel cables, etc. between the upper and lower connecting plates of the seismic isolation support. These chains and steel cables have the characteristics of only tension and no compression, which can prevent the rubber bearing from being pulled. , but these metal chains or steel cables will also limit the horizontal displacement of the isolation support to a certain extent, thus affecting the isolation effect of the structure

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