Stacked friction pendulum bearing

Abstract

The invention discloses a stacked friction pendulum bearing. The stacked friction pendulum bearing comprises a sliding block containing cavity, and a first concave surface disc and a second concave surface disc which are sequentially stacked in the same direction from bottom to top, wherein a sliding block is arranged between the second concave surface disc and the sliding block containing cavity;outer side faces of the sliding block containing cavity and the first concave surface disc are connected with upper and lower structural members respectively; composite material friction surfaces arearranged among the sliding block, the second concave surface disc and the sliding block containing cavity, and between the first concave surface disc and the second concave surface disc. According tothe stacked friction pendulum bearing disclosed by the invention, the first concave surface disc and the second concave surface disc are stacked in the same direction, so that a restoring force is increased, a resetting capability of the sliding block is improved, and residual deformation is reduced; the first concave surface disc, the second concave surface disc and the sliding block are in surface contact, so that no bearing force is suddenly changed, and the bearing force is high; friction coefficients of a second composite material friction surface and a third composite material frictionsurface, and the curvature radii of the first concave surface disc and the second concave surface disc can be adjusted, so that different performance standards are met. The stacked friction pendulum bearing has the advantages of simple structure, clear force transmission, high reliability and wide application range.

Description

technical field [0001] The invention relates to the technical field of building and bridge friction pendulum shock isolation, in particular to a laminated friction pendulum bearing. Background technique [0002] Friction pendulum bearings are widely used in buildings and bridge isolation structures. The main functions are: to connect the upper and lower structures through friction pendulum bearings, and reduce the seismic force of the upper structure of the bearings. At present, the friction pendulum bearings commonly used in buildings and bridge structures mainly have the following three forms: [0003] ①Single sliding surface friction pendulum support. Its support structure is as figure 1 As shown, it is mainly composed of a slider cavity, a composite material sliding surface, a slider and a concave plate, and the slider cavity and the concave plate are respectively connected to the upper and lower structural members. This kind of support can realize sliding and rotatio...

AI Technical Summary

Problems solved by technology

However, when the slider slides to the position where the curvature changes, the contact surface becomes point contact or line contact, and the bearing capacity is greatly reduced

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