Self-resetting seismic isolation support

Abstract

The invention relates to the technical field of earthquake prevention and discloses a self-resetting seismic isolation support. The support comprises an upper connecting plate, a lower connecting plates, guide channels, SMA (shape memory alloy) stranded wires, high-damping rubber bodies and rubber stacked steel plates, wherein multiple guide channels penetrate through the upper connecting plate and the lower connecting plate, SMA stranded wire groups penetrate through the guide channels and form annular closed accesses, the high-damping rubber bodies and the rubber stacked steel plates are connected between the upper connecting plate and the lower connecting plate in a layered and staggered manner, and the vertical rigidity of the support can be effectively increased. The SMA stranded wires can increase the lateral rigidity of the support and improve the shear capacity of the support under the action of small earthquakes and dissipate a lot of earthquake energy after yielding under theaction of large earthquakes, and the resetting capacity of the support after earthquakes can be realized by the aid of superelasticity of the SMA stranded wires; the SMA stranded wires enhance the energy dissipation capacity and stability of the support and remarkably improve the seismic isolation effect of the structure; a limit role can be played and beam falling can be prevented.

Description

technical field [0001] The invention relates to the field of anti-vibration technology, in particular to a self-resetting anti-vibration support. Background technique [0002] Earthquake is one of the major natural disasters that mankind has faced for a long time. It not only threatens the safety of human life and property, but also causes the collapse and destruction of houses and infrastructure, and the blockage and interruption of public transportation. Therefore, we must take necessary anti-seismic measures to Reduce the loss caused by the earthquake. Traditional buildings use anti-seismic methods based on "resistance", mainly dissipating earthquake energy by improving the bearing capacity or plastic deformation capacity of components, which is often uneconomical or unsightly; and seismic isolation technology turns the "hard resistance" of buildings to earthquakes into "Guarding", using special isolation components to block the transmission of seismic energy to the uppe...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a self-resetting seismic isolation bearing, which solves the problems of large deformation, weak energy dissipation capacity, poor reset ability, easy falling beam, poor earthquake resistance and high cost of use of traditional bearings in the prior art

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