Engineering structure lead pin viscoelastic damper

Abstract

The engineering structure lead pin viscoelastic damper is a kind of anti-seismic and shock-absorbing device used in civil engineering, especially a device suitable for indoor and outdoor, and suitable for protecting engineering structures during large and small earthquakes. The damper is a secondary stress type damper, which is composed of a middle steel plate 1, two side steel plates 2, a damping layer 3 that is stressed in the second stage, and a lead pin 4 that is stressed in the first stage. The damping layers are respectively bonded on the sides of the damping layer, and the steel plates on both sides are respectively bonded on the outer sides of the damping layer. Lead pin holes are respectively set on the middle steel plate, the steel plates on both sides and the damping layer, and the lead pins are passed through the lead pin holes. The steel plate, the steel plates on both sides, and the damping layer are connected as a whole; the shear force on the lead pin is divided into two stages. When the shear force is not too large, it is the first stage. When reaching the lead pin layer section, it enters the second stress stage, at this time, the shear force borne by the lead pin no longer increases and is a constant value, and the remaining shear force is all borne by the damping layer.

Description

1. Technical field [0001] The invention is an anti-shock and shock-absorbing device applied to civil engineering, especially a device suitable for indoor and outdoor use, and suitable for protecting engineering structures during large or small earthquakes. 2. Background technology [0002] As an effective means of energy dissipation and vibration reduction for building structures, viscoelastic vibration-reducing energy-dissipating dampers can reduce the earthquake and wind response of multi-high-rise buildings, bridges, towers and other engineering structures to a large extent, ensuring that they are Safety under strong vibration. The viscoelastic damping material used in the viscoelastic damper is a high molecular polymer. Viscoelastic damping materials were first used in military, aerospace, aviation, automobile and mechanical engineering, but they all belong to high-frequency vibration reduction technology. The vibration of buildings or bridges under the action of wind ...

AI Technical Summary

Problems solved by technology

The new Wegluski compound damper can generally only be used in air-conditioned indoors where the temperature changes little, and should not be used outdoors

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