Self-resetting supporting device based on shape memory alloy and low-friction gasket

Abstract

The invention discloses a self-resetting supporting device based on a shape memory alloy and a low-friction gasket. The self-resetting supporting device comprises a first outer side plate and a secondouter side plate, wherein two high-strength threaded rods penetrate through the front surfaces of the first outer side plate and the second outer side plate, and the surfaces of the high-strength threaded rods are movably connected with the inner walls of the first outer side plate and the second outer side plate. According to the supporting and positioning device based on the combination of theshape memory alloy and the low-friction gasket, the shape memory alloy is always pulled under the action of tension and pressure by utilizing a self-resetting supporting principle, and the shape memory alloy has superelasticity; the stress is balanced under the action of tension and pressure without buckling; and the friction force between plate members can be effectively reduced by adopting the low-friction butyl rubber gasket, so that the deformation and energy consumption of the self-resetting supporting device are increased only through the shape memory alloy, the stress is reasonable, andthe device can be reset to be in an initial state without residual deformation after an earthquake action is applied, and the effect of quickly restoring the post-earthquake function of correspondingstructures is effectively improved.

Description

technical field [0001] The invention relates to the technical field of building structure support, in particular to a self-resetting support device based on a shape memory alloy and a low-friction gasket. Background technique [0002] Based on the original three-level seismic design and the fifth generation of my country's Earthquake Parameter Zoning Map, the four functions of the recoverable functional structure are "not damaged by small and moderate earthquakes, replaceable and repairable by major earthquakes, and not collapsed by major earthquakes". The goal of horizontal seismic fortification has been proposed and has been paid more and more attention. The building structure needs to improve its anti-seismic performance and reduce the damage of each component, and adapt its corresponding structure to the current demand. However, for the seismic design of traditional structures, the seismic energy is mainly dissipated through the ductility and plastic deformation of the s...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a self-resetting support device based on a shape memory alloy and a low-friction gasket, which solves the problems of large buckling and residual deformation of the existing support. Damage, the problem that the post-earthquake function of the support cannot be quickly restored

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