Self-adaptive variable friction damping device and self-adaptive variable friction damping method

Abstract

The invention belongs to the technical field of damping energy dissipation devices, and particularly relates to a self-adaptive variable friction damping device suitable for the seismic environment and a self-adaptive variable friction damping method. The friction damping device is used for resisting seismic loads in an earthquake. The friction damping device comprises a first sliding plate, a second sliding plate, a first fixing plate, a second fixing plate, a first main friction plate, a second main friction plate and a core plate. The first fixing plate, the first sliding plate, the core plate, the second sliding plate and the second fixing plate are stacked. The first main friction plate and the second main friction plate are symmetrically embedded in the upper and lower faces of the core plate. According to the self-adaptive variable friction damping device, the reverse discontinuous slope surface structure design is adopted, the force is more uniform and stable when the fixing plates and slope plates interact in the inclined planes through the force layout mode of the triangular position slope surfaces, the output of the variable damping force during pulling and pressing bidirectional movement can be easily achieved, the double-stroke limiting function can be realized by means of a self-concave-convex structure, and good engineering practicability is achieved.

Description

technical field [0001] The invention belongs to the technical field of shock absorption and energy consumption devices, and in particular relates to an adaptive variable friction damping device and an adaptive variable friction damping method adapted to earthquakes. Background technique [0002] As a sudden natural disaster, earthquakes have caused serious damage to people's lives and property, and caused countless economic losses. Therefore, the use of seismic structural design in engineering practice has become an important field of long-term research by many scholars and engineers. Its significance and role are self-evident. [0003] Frictional damping device, as a shock-absorbing and energy-dissipating device with the advantages of simple structure, strong energy-dissipating capacity, and relatively low cost, is widely used in engineering facilities such as high-rise buildings, large gymnasiums, and long-span bridges. The traditional friction damping device mainly gener...

AI Technical Summary

Problems solved by technology

The traditional friction damping device mainly generates a constant damping force through a preset pre-tightening force to resist the seismic load. In this way, the damping force output is single

With the improvement of people's requirements for the performance of energy-dissipating structures, more and more attention has been paid to obtaining shock-absorbing and energy-dissipating structural devices that can simultaneously meet the conditions of earthquakes of different intensities. Unbalanced load function, unable to meet the requirements of shock absorption and energy dissipation under earthquakes of different intensities, etc.

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