Lead viscoelastic damper with amplification function

Abstract

The invention provides a lead viscoelastic damper with an amplification function. The lead viscoelastic damper with the amplification function comprises two restraining bottom plates vertically arranged left and right, a lead viscoelastic damper body and two amplification lever structures, wherein the lead viscoelastic damper body is arranged between two restraining frames and comprises two outer shearing plates and an inner shearing plate clamped between the two outer shearing plates; the inner shearing plate is provided with two hinge points of the inner shearing plate which are symmetrically arranged; the two amplification lever structures are in conjugate symmetry by taking the center of the inner shearing plate as a symmetric center; each amplification lever structure comprises a loading shaft, an amplification lever and a transmission chain rod which are hinged in sequence, and the transmission chain rod is hinged with the hinge points of the inner shearing plate. According to the lead viscoelastic damper with the amplification function, the motion displacement of the loading shafts can be amplified according to the proportional relation through cooperation of the amplification levers and the transmission chain rods, so that the inner shearing plate and the outer shearing plates generate relative rotation displacement to promote the shearing deformation of a viscoelastic material and a lead core so as to consume energy.

Description

technical field [0001] The invention relates to the technical field of civil engineering, in particular to a lead viscoelastic damper with amplifying function. Background technique [0002] In recent years, frequent earthquakes have caused massive damage to building structures and brought huge losses to people's lives and property, while key structural components are often damaged under small deformation conditions. During earthquakes, existing energy dissipation devices are deformed The magnitude is small, and its energy consumption capacity cannot be fully utilized. Although the existing amplified dampers have been fully developed, they still cannot meet their energy dissipation capacity at displacement levels. Existing dampers often do not have energy dissipation amplification capabilities, and their energy dissipation capabilities at low displacement levels Low; under the action of wind vibration load, its deformation is small, and it is difficult to exert the energy di...

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Problems solved by technology

[0002] In recent years, frequent earthquakes have caused massive damage to building structures and brought huge losses to people's lives and property, while key structural components are often damaged under small deformation conditions. The range is small, and its energy consumption capacity cannot be fully utilized

Although the existing amplified dampers have been fully developed, they still cannot meet their energy dissipation capacity at displacement levels. Existing dampers often do not have energy dissipation amplification capabilities, and their energy dissipation capabilities at low displacement levels Low; under the action of wind vibration load, its deformation is small, and it is difficult to exert the energy dissipation capacity of the existing damper at this time; Significance, and can significantly improve the seismic performance of building structures

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