A curved mild steel energy dissipation damper with viscoelastic material

Abstract

The invention belongs to the anti-seismic and shock-absorbing fields of civil engineering, and discloses an arc-shaped mild steel energy dissipation damper with a viscoelastic material, comprising an upper end plate, a lower end plate, a viscoelastic material layer and a viscous damping device; an upper end plate Set the upper left arc-shaped energy-dissipating soft steel plate and the upper right arc-shaped energy-dissipating soft steel plate, and the lower end plate set the left lower arc-shaped energy-dissipating soft steel plate and the lower right arc-shaped energy-dissipating soft steel plate; set the upper middle on the viscoelastic material layer The steel plate and the lower middle steel plate; the damper is equipped with symmetrically distributed transverse wave energy-dissipating soft steel plate, longitudinal wave energy-dissipating soft steel plate and spring limit device; the end of the upper middle steel plate is equipped with an upper spring energy dissipating device, A lower spring energy dissipation device is arranged at the end of the steel plate, and several viscous damping devices are arranged symmetrically on both sides of the viscoelastic material layer. The damper has multiple energy-dissipating defense lines, has obvious effects of multi-directional vibration isolation and shock absorption, and can be replaced quickly so that the function can be restored as soon as possible after the earthquake.

Description

technical field [0001] The invention belongs to the anti-seismic and shock-absorbing fields of civil engineering, and relates to an arc-shaped mild steel energy-dissipating damper with viscoelastic materials. Background technique [0002] At present, high-rise and ultra-high-rise buildings mainly based on frame-shear wall structures emerge in endlessly. Shear walls and frame columns are important components of the main structure. The toe of the wall and the foot of the frame column are prone to serious damage, which will greatly reduce the bearing capacity of the structure, affect the normal use, and even cause the entire structure to collapse or have more serious consequences, and the post-earthquake repair work is difficult. Therefore, it is very necessary to propose and study the seismic measures of frame-shear wall structures. The traditional anti-seismic measures rely on the deformation of the structure itself to absorb the seismic energy. The effect of enhancing the a...

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Problems solved by technology

[0004] However, the existing dampers have poor energy dissipation capacity, and there are few targeted designs to prevent their own instability. Once the damper itself becomes unstable, it will cause the entire wall and even the main structure to become unstable, with disastrous consequences

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