Annular steel wire rope-curved surface steel basin composite damping support base

Abstract

The invention discloses an annular steel wire rope-curved surface steel basin composite damping support base which comprises an upper support base plate and a lower support base plate, wherein a support body, a steel basin and dampers are arranged between the upper support base plate and the lower support base plate; a rubber plate is arranged inside the steel basin; the support body is used for supporting the top of the rubber plate; the circumferential surface of the lower end of the support body is matched with the inner wall of the steel basin; the bottom of the steel basin is connected with the lower support base plate through shearing nails; the bottom surface of the steel basin is a spherical surface; the spherical surface of the steel basin is matched with the spherical concave surface of the lower support base plate; the dampers are steel wire rope dampers; the steel wire rope dampers are annually arranged at the peripheries of the support body and the steel basin. The annular steel wire rope-curved surface steel basin composite damping support base has functions of a common steel basin type support base, a tensile force support base and a damping shock resistance support base, is capable of resisting earthquake inertia force from different directions within a horizontal plane, has functions of energy dissipation and earthquake resistance, has relatively large recovery force, can be relatively easily reset after earthquake, and has wide market prospects 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 composite damping support of a hoop steel wire rope-curved surface steel basin. 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] Hydraulic Vi...

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Problems solved by technology

[0006] 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 bridge direction and the transverse direction of the bridge, which limits its mechanical movement to a certain extent and reduces the shock absorption effect.

[0007] 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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