Composite shock absorbing graded yield damper

Abstract

The invention discloses a composite shock absorbing graded yield damper, which comprises frame assemblies and an energy dissipating assembly. The frame assemblies are fixed to a coupled shear wall, the frame assemblies are of annular frame structures, one or more than two frame assemblies are arranged, when two or more frame assemblies are arranged, each frame assembly has different sizes, and each frame assembly is coaxially arranged in a sleeving mode at intervals and fixedly connected by a plurality of connecting pads; and the energy dissipating assembly is fixed to the inner walls of the frame assemblies, and when two or more frame assemblies are arranged, the energy dissipating assembly is fixed to the inner wall of the frame assembly of an inner ring. According to the composite shockabsorbing graded yield damper, one or more annular frame assemblies and the internal energy dissipating assemblies are used for layer-by-layer shock absorption, and graded yield energy consuming of the composite shock absorbing graded yield damper in small earthquakes, medium earthquakes and large earthquakes is realized.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption, and more specifically relates to a composite shock-absorbing graded yield damper. Background technique [0002] Metal damper is a widely used shock-absorbing control device, which usually has the advantages of clear mechanical concept and convenient manufacturing. In recent years, domestic and foreign scholars have developed a large number of metal dampers with different structures. In order to enable the damper to effectively exert its energy dissipation characteristics under different intensities of earthquakes, some scholars have developed a damper that yields in stages. [0003] At present, most metal dampers are designed based on the yield energy dissipation of moderate earthquakes or large earthquakes, and most of them are yield energy dissipation of moderate earthquakes. This leads to a limited increase in the yield bearing capacity of the damper during lar...

AI Technical Summary

Problems solved by technology

[0003] At present, most metal dampers are designed based on the yield energy dissipation of moderate earthquakes or large earthquakes, and most of them are yield energy dissipation of moderate earthquakes. This leads to a limited increase in the yield bearing capacity of the damper during large earthquakes, and it does not have the capacity for small earthquakes. Energy dissipation capacity, the function of staged yielding has not been realized, and the existing partial staged yielding damper may fail in advance at a large displacement after yielding at a small displacement and does not have excellent large deformation capacity

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