Damper achieving low-yield-point steel energy dissipation and particle energy dissipation

Abstract

The invention relates to a damper achieving low-yield-point steel energy dissipation and low particle energy dissipation. The damper comprises a first energy dissipation structure, a second energy dissipation structure, metal particles and an installation plate; a cavity is formed in the first energy dissipation structure, the second energy dissipation structure is contained in the cavity, a gap is reserved between the outer wall face of the second energy dissipation structure and the inner wall face of the first energy dissipation structure and filled with the metal particles, and the installation plate is installed of the outer wall face of the first energy dissipation structure. The two energy dissipation modes including yield energy dissipation of the first energy dissipation structure and the second energy dissipation structure and particle energy dissipation of the metal particles are adopted, and therefore the defect that a metal damper is not yielded under a medium earthquake yet is avoided. During small earthquake yield energy dissipation, particle energy dissipation can compensate yield energy dissipation, and the problem that due to the fact that the yield energy dissipation capacity is exerted too early, the energy dissipation capacity under the medium earthquake and a large earthquake is reduced is solved. In addition, the metal particles supply the energy dissipation capacity to the damper through friction and collision.

Description

technical field [0001] The invention relates to the technical field of structural engineering, in particular to a low yield point steel energy dissipation and particle energy dissipation damper. Background technique [0002] The metal damper is a kind of building energy dissipation shock (vibration) device with superior energy dissipation performance and simple structure. The purpose of shock absorption. The advantages of the metal damper include: stable hysteretic energy dissipation performance, good low-cycle fatigue characteristics, simple structure, low cost, not affected by the environment, and obvious energy dissipation performance. [0003] Low yield point steel refers to steel with a yield strength between 100Mpa and 235Mpa. Low yield point steel has low yield strength, strong deformation ability, and good plastic energy dissipation performance. The metal damper made of steel with low yield point has good hysteretic energy dissipation performance. [0004] The ma...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art, provide a low yield point steel energy dissipation and particle energy dissipation damper, and solve the problem of damping under moderate earthquakes caused by the excessively large design yield displacement of the metal damper in the prior art The problem that the damper has not yet yielded does not play a role in consumption and shock absorption, and the yield displacement of the metal damper is small, which leads to the energy dissipation of the damper under the action of small earthquakes and wind vibrations, which makes the energy dissipation capacity play out prematurely and reduces the moderate shock And the problem of energy dissipation performance under large earthquakes

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