Circumferential Steel Ball Type Composite Damping Bearing

Abstract

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 steel ball type composite damping support. It includes an upper support plate and a lower support plate, a spherical crown body, a bearing load-bearing body and a damper are arranged between the upper support plate and the lower support plate, the damper is a wire rope damper, and the wire rope damper is Annularly arranged on the periphery of the spherical crown and the bearing body of the support, the wire rope damper includes a wire rope and two sets of rope clamps respectively fixed on the upper support plate and the lower support plate, and the wire rope It is fixed between the two sets of rope clips. The invention has the functions of ordinary spherical steel bearing, tensile bearing and damper, can resist the seismic inertial force from all directions in the horizontal plane, plays the role of energy dissipation and shock absorption, and is suitable for various bridges, building structures, Nuclear power plant structures, etc., have broad 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 hoop steel wire rope steel ball type composite damping 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] Hydraulic Viscous Damper: Th...

AI Technical Summary

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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