Double energy consumption type damper

Abstract

The invention provides a double energy consumption type damper. The double energy consumption type damper comprises two U-shaped low-yield-point steel plates which form an annular structure through butt weld joints, the U-shaped position of each U-shaped low-yield-point steel plate is of a hollowed-out structure, an anti-pulling and non-shearing bolt hole is formed in the first side face of each U-shaped low-yield-point steel plate, a common bolt hole is formed in the second side face of the U-shaped low-yield-point steel plate, and a viscoelastic damping material is arranged between the firstside face and the second side face of the U-shaped low-yield-point steel plate; and one end face of the viscoelastic damping material is connected with the first side face of the U-shaped low-yield-point steel plate through an upper cover plate, and the other end face of the viscoelastic damping material is connected with the second side face of the U-shaped low-yield-point steel plate through alower cover plate. The double energy consumption type damper improves the anti-seismic performance of the structure, and has the characteristics of being reliable in performance and simple in structure.

Description

technical field [0001] The invention relates to the technical field of special structures and energy-dissipating shock-absorbing structures, in particular to a double energy-dissipating damper. Background technique [0002] Traditional anti-seismic structures resist earthquakes by enhancing the anti-seismic performance of the structure itself. Under the action of strong earthquakes, major stress-bearing components will be greatly damaged, resulting in difficulties in post-earthquake repairs, resulting in certain economic losses and even casualties. It can be seen that the performance goal of "not falling down after a big earthquake" can no longer meet the needs of modern society, which urgently requires new technologies to improve the seismic toughness of structures. [0003] Metal dampers use the plastic deformation of metals to dissipate energy. During earthquakes, metal dampers must enter plasticity before structural members such as beams and columns, and must enter the...

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Problems solved by technology

[0008] In order to overcome the deficiencies of the above-mentioned prior art, the object of the present invention is to provide a dual energy dissipation damper, which solves the problem of energy dissipation of the viscoelastic damper under large strain amplitudes by combining displacement and velocity dampers. The problem of insufficient capacity can also avoid the fatigue effect of the metal damper under the action of wind vibration, realize the energy consumption of the damper in the whole process, improve the seismic performance of the structure, and have the characteristics of reliable performance and simple structure

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