Annular steel wire rope lamination rubber compound seismic reduction and isolation bearer

Abstract

The invention belongs to the field of anti-seismic techniques of bridges, buildings, nuclear power stations and mechanical engineering, and particularly relates to an annular steel wire rope lamination rubber compound seismic reduction and isolation bearer. The annular steel wire rope lamination rubber compound seismic reduction and isolation bearer comprises an upper supporting plate and a lower supporting plate, a rubber bearer and a damper are arranged between the upper supporting plate and the lower supporting plate, the rubber bearer is a laminated rubber bearer or a lead core rubber bearer, the damper is a steel wire rope damper which is annularly arranged on the periphery of the rubber bearer, the steel wire rope damper comprises a steel wire rope and two rope clamps, and the steel wire rope is fixed between the two rope clamps. The annular steel wire rope lamination rubber compound seismic reduction and isolation bearer achieves the functions of common plate rubber bearers, tension bearers and damping anti-seismic bearers, is capable of resisting seismic inertia force from all directions in a horizontal plane, plays a role in energy dissipation and seismic reduction, is suitable for various bridges, building structures, nuclear power station structures and the like, and has wide market prospect and good economic benefits.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of bridges, building construction, nuclear power plants and mechanical engineering, and in particular relates to a hoop steel wire rope laminated rubber composite shock-absorbing and isolating support. Background technique [0002] Earthquake is one of the frequent natural disasters. For a long time, human beings have been "powerless" in the face of this natural disaster. The direct cause of loss of life and property caused by earthquakes is the violent shaking, damage and collapse of buildings. Since the 20th century, human beings have continuously explored the structural control technology of building's earthquake resistance, energy dissipation and shock absorption, and successively invented and created the following corresponding products and technologies. [0003] Lead Rubber Bearings: Absorb and dissipate seismic energy through shear deformation of lead core and rubber. [0004] Hydra...

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Problems solved by technology

[0007] Although the above-mentioned lead-core rubber bearings and frictional damping bearings can play the role of circumferential shock absorption and isolation, but the horizontal stiffness is too low, when the foundation is too soft or the pier is too soft, the shock absorption effect will be reduced, and the structure will even be increased. earthquake response

The hydraulic viscous damper is a rod-type structure with directionality, which is effective in reducing the axial seismic action, but the earthquake action direction of the bridge is unpredictable in advance, so its setting has a certain degree of blindness. The common practice is to install hydraulic dampers in both the longitudinal direction and the transverse direction of the bridge, which limits its mechanical movement to a certain extent and reduces the shock absorption effect; and it does not have the return function. After the earthquake, it is necessary to It can only be returned by external force

[0008] In addition, the existing tensile bearings generally resist the tensile force through the direct or indirect convex-concave connection between the upper bearing plate and the lower bearing plate. Foreshadowing, when replacement is required, only the entire support can be replaced, which is costly and takes a long time

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