A self-restoring metal double-tube space shock-absorbing and energy-dissipating device with shock-proof damage

Abstract

The invention discloses an earthquake loss avoiding self-recovery type metal double-barrel space damping energy dissipation device, and belongs to the field of civil engineering structure energy dissipating and damping. An energy dissipation barrel A, an energy dissipation barrel B, a limiting ring plate, a limiting baffle, a limiting groove plate, a limiting ring cavity, a connecting piece, a positioning hanging plate and a thin rubber pad are included. The earthquake loss avoiding self-recovery type metal double-barrel space damping energy dissipation device is characterized in that the twoenergy dissipation barrels are adsorbed and fixed through a connecting piece magnet, meanwhile, the contact faces of the two energy dissipation barrels are matched and inset through grooves and flanges to form meshing, and accordingly double-barrel three-dimension relative deformation is restrained; each energy dissipation barrel is internally provided with a stretching and extrusion deformation limiting device, and the energy dissipation barrel deformation range can be controlled; when the relative stretching and deformation of the double barrels are too large, the adsorbed contact faces areseparated and recover from deformation, and when deformation is little, adsorbing and meshing can be conducted, and the double barrels recover into a whole. By means of the earthquake loss avoiding self-recovery type metal double-barrel space damping energy dissipation device, stable plastic energy consumption can be generated within a certain deformation range of the energy dissipation barrels, the earthquake loss avoiding self-recovery type metal double-barrel space damping energy dissipation device can adapt to space three-dimension deformation and large displacement, the initial state canbe automatically recovered, repairing after the earthquake is avoided, the structure is simple, and installation is convenient and fast.

Description

technical field [0001] The invention relates to the technical field of energy dissipation and shock absorption of civil engineering structures, in particular to a shock-proof and self-restoring metal double-tube space shock-absorbing energy-dissipator. Background technique [0002] At present, the application of metal energy dissipators in energy dissipation and shock absorption of engineering structures is increasing. The main principle is that the plastic hysteretic deformation generated after the yield of metal materials dissipates seismic energy, slows down the vibration response of structures, and avoids structural damage. . Existing mild steel energy dissipators include axial yield type, shear yield type, bending yield type and torsional yield type. [0003] Previous earthquake disasters have shown that the frequency band of seismic waves is wide, and there are frequent aftershocks after major earthquakes. Therefore, the continuous energy dissipation capacity of metal...

AI Technical Summary

Problems solved by technology

At present, most metal energy dissipators have limited deformation capacity, and are often damaged under a large earthquake, and fail due to the loss of deformation energy dissipation capacity.

After an earthquake, most types of metal energy dissipators fail and need to be replaced or maintained

[0004] Existing metal energy dissipators mainly produce yield deformation and energy dissipation in one-dimensional line units or two-dimensional planes, which cannot better adapt to the characteristics of three-dimensional vibration in structural space, and are prone to buckling in the direction of vertical energy dissipation and deformation, causing energy dissipation to advance Ineffective, not conducive to the stable dissipation of seismic energy

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