Semi-active eddy current damping wall

Abstract

The invention relates to a semi-active eddy current damping wall. The semi-active eddy current damping wall is composed of an eddy current damping wall, an acceleration sensor and a controller, wherein the eddy current damping wall is composed of a steel plate, a maintenance wall, a lower support pier, an upper support pier, a permanent magnet, an actuator, a conductor plate and a magnetically conductive plate. According to the semi-active eddy current damping wall, the magnitude of the eddy current damping force can be adjusted in real time according to the instantaneous acceleration responseof each floor of a main structure when an earthquake occurs, so that the energy consumption and damping effects of the eddy current damping wall are enhanced and the response of the main structure isreduced. According to the semi-active eddy current damping wall, the adoption of the eddy current damping to replace the traditional viscous damping can improve the stability and durability of the damping wall and simplify the design of the damping wall. The magnitude of the damping force of the semi-active eddy current damping wall can be changed by changing the distance between the conductor plate and a permanent magnet block in real time by the actuator to improve the damping effect of the eddy current damping wall.

Description

technical field [0001] The invention belongs to the field of anti-seismic engineering, in particular to a semi-active eddy current damping wall. Background technique [0002] Earthquakes are natural disasters that seriously threaten the safety of people's lives and properties. Traditional building structures are protected against earthquakes in a "resistance" manner. This approach is not only uneconomical, but also may amplify the earthquake effect on the contrary. The energy-dissipating and shock-absorbing structure is a new type of earthquake-resistant structure. By installing energy-dissipating and shock-absorbing devices in the building structure, when an earthquake strikes, the energy-dissipating and shock-absorbing devices can consume a large amount of seismic energy and reduce the earthquake that the structure bears. Energy, so as to ensure the safety of the building structure. [0003] The traditional viscous damping wall uses hydraulic viscous dampers to provide ...

AI Technical Summary

Problems solved by technology

[0003] The traditional viscous damping wall uses a hydraulic viscous damper to provide additional damping. While providing damping, it also has a certain stiffness. It is impossible to completely separate stiffness and damping, which affects design analysis.

Moreover, the hydraulic viscous damper also has problems such as oil leakage, difficult maintenance, and difficult adjustment in the later stage, which increases the difficulty and cost of maintenance

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