Rotating energy consumption earthquake damping device

Abstract

The invention belongs to the technical field of earthquake (shock) damping, and particularly relates to a rotating energy consumption earthquake damping device, which comprises a screw rod transmission mechanism, a rotating shaft, an upper sleeve and a lower sleeve, wherein the lower end of the upper sleeve is sheathed and connected with the upper end of the lower sleeve, one end of the screw rod transmission mechanism is connected with the upper sleeve, the other end of the screw rod transmission mechanism is connected with the rotating shaft, the axial movement of the upper sleeve and / or the lower sleeve is converted into the rotating movement of the rotating shaft, a first steel plate which is projected out is arranged on the rotating shaft, a second steel plate corresponding to the first steel plate is arranged on the inner wall of the lower sleeve, and in addition, the first steel plate and the second steel plate are partially overlapped in the radial direction of the rotating shaft. The earthquake damping device provided by the invention has the advantages that the axial movement of the upper and lower sleeves is converted into the rotating movement of the rotating shaft through the screw rod transmission mechanism, so the steel plates arranged between the rotating shaft and the lower sleeve generate the damping, partial earthquake energy can be dissipated, and the earthquake damage is reduced. The device has the advantages that the structure is simple, the durability is high, the repeated utilization can be realized, and the installation applicability is high.

Description

technical field [0001] The invention belongs to the field of anti-seismic technology of building structures, and in particular relates to a rotating energy-consuming shock-absorbing device. Background technique [0002] Earthquake disasters often have a fatal impact on building structures. In order to make the building structure have a strong ability to resist external damage such as earthquakes, it is often necessary to add anti-seismic devices to the frame structure. The currently widely used passive anti-seismic devices mainly include two types: (1) Energy-dissipating shock-absorbing devices, which achieve the purpose of protecting the structure by dissipating part of the seismic energy input into the structure. Among them, all kinds of dampers, restraint supports, etc., all belong to energy dissipation and shock absorption devices. (2) Vibration isolation and shock absorption device. That is, by means of isolation, the transmission of seismic energy to the structure is...

AI Technical Summary

Problems solved by technology

[0003] However, the existing anti-seismic devices mainly have the following defects: (1) Most energy-dissipating shock-absorbing devices have losses under the action of earthquakes and cannot be reused

(2) Viscous fluid damper-type energy dissipation and shock absorption devices have durability problems such as aging and volatilization

(3) Most of the shock-isolation and shock-absorbing devices can only be installed in new buildings and are not suitable for existing buildings

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