Semi-active electric vortex laminated rubber support system

Abstract

The invention relates to a semi-active electric vortex laminated rubber support system composed of laminated rubber supports and a semi-active electric vortex damping system. The semi-active electricvortex damping system is composed of a fixed part, a permanent magnet, a data collection and analysis system, a magnetic conductive plate, an actuator, a bottom fixed plate and a conductor plate. Whenan earthquake occurs, the semi-active electric vortex damping system of the semi-active electric vortex laminated rubber support system can adjust the magnitude of the electric vortex damping force in real time according to the instantaneous frequency of an earthquake wave, the earthquake isolation effect of the electric vortex laminated rubber support system is strengthened, and the response ofan upper structure is reduced. Electric vortex damping replaces traditional viscous damping so that the stability and durability of a damper can be improved, and the design of the damper is simplified. The magnitude of the damping force of the semi-active electric vortex laminated rubber support system can be changed in the mode that the spacing distance between the conductor plate and the permanent magnet is changed by the actuator in real time so as to improve the earthquake isolation effect of the electric vortex laminated rubber support system.

Description

technical field [0001] The invention belongs to the field of anti-seismic engineering, in particular to a semi-active electric eddy current laminated rubber bearing system. Background technique [0002] Earthquakes are natural disasters that seriously threaten the safety of people's lives and property. 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. Seismic isolation structure is a new form of earthquake-resistant structure. By adding a seismic isolation layer at the bottom of the building structure, the natural vibration period of the upper structure is increased to reduce the seismic response, and the seismic energy is consumed through the damping device. Laminated rubber bearings are widely used in seismic isolation structures. [0003] Traditional laminated rubber bearings often use hydraulic viscous dampers to provide additio...

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Problems solved by technology

[0003] Traditional laminated rubber bearings often use hydraulic viscous dampers to provide additional damping. While providing damping, there is also a certain stiffness, which cannot 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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