Electromagnetically controlled friction pendulum shock-reducing device and control method

An electromagnetic control and friction pendulum technology, which is applied in the field of earthquake reduction and isolation, can solve the problems that the friction pendulum support cannot be completely reset, the building overturns, collapses, etc., to achieve safe protection of structural stability, reduce earthquake response, and good structural stability sexual effect

CN109837993BActive Publication Date: 2020-02-11兰州瑟百瑞减震技术开发有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-02-11

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Abstract

The invention discloses an electromagnetically controlled friction pendulum vibration reduction and isolation device and control method. The electromagnetically controlled friction pendulum vibrationreduction and isolation device and control method comprises a horizontal vibration isolation unit and a vertical vibration isolation unit; in the horizontal vibration isolation unit, a lower cover plate of a common friction pendulum supporting seat is connected with a lower column, the lower column is connected with a base, the upper cover plate of the friction pendulum is connected with an uppercolumn; and in the vertical vibration isolation unit, an electromagnet is embedded between the upper and lower columns of the upper and lower cover plates connecting the friction pendulum and is connected with the control system at the same time, and coils in the electromagnet are connected with the control system through wires. According to feedback information of a displacement sensor and a pressure sensor on the control system, a computer can automatically control the electromagnet correspondingly, the structure of the electromagnet can be reset after an earthquake action by the electromagnet through attracting or repelling, the pull-out capacity is improved, and overturning and even collapse of a building are weakened, the collision damage of a sliding block to a limiting ring is alsogreatly weakened, and the problems of the variability and residual displacement of friction coefficients in an existing friction pendulum are solved; and seismic energy can be consumed more effectively, and a superstructure is more stable and safer.
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Description

technical field

[0001] The invention relates to an earthquake reduction and isolation technology. Background technique

[0002] Earthquake is a very destructive natural disaster. According to statistics, there are more than 5 million earthquakes every year on the earth. Earthquakes can cause a large number of casualties and the collapse of buildings will cause huge losses to human life and property. . But the current level of science and technology is still unable to predict the arrival of earthquakes, we can only take some measures, such as installing shock-absorbing and isolation devices, to minimize the damage caused by earthquakes.

[0003] Seismic isolation is to reduce or isolate the impact on buildings caused by earthquakes. Seismic control is to change the dynamic characteristics of the structure by configuring some kind of mechanism equipment in a specific part of the structure, and dissipate the seismic energy that has been input into the structural system. Seis...

Examples

Embodiment Construction

[0010] The present invention is an electromagnetically controlled frictional pendulum shock-absorbing device and control method, such as Figure 1~Figure 6 As shown, the electromagnetically controlled friction pendulum shock-absorbing device includes a horizontal shock-isolation unit and a vertical shock-isolation unit. The horizontal shock-isolation unit has a lower cover plate of the friction pendulum support 2 connected to the lower column, and the lower column is connected to the foundation , the upper cover plate of the friction pendulum is connected with the upper column; the vertical vibration isolation unit embeds electromagnets in the upper and lower columns connecting the upper and lower cover pendulums of the friction pendulum, and connects it with the control system at the same time, including the upper column 1-1, the lower column 1-2, electromagnet 1-3, coil 1-4, wire 1-5, pressure sensor 1-6, displacement sensor 1-7, foundation 1-8, friction pendulum support 2, c...