Collision type shape memory alloy dissipation energy device

Abstract

The invention relates to a collision type shape memory alloy energy consumer, mainly comprising a square steel cylinder, a shape memory alloy plate, a push-and-pull rod and steel elliptical cakes. The shape memory alloy of the invention is characterized in that: 7 shape memory alloy plates embedded at the upper part and lower part of the square steel cylinder evenly divide the interior of the square steel cylinder into 8 interval parts; 4 steel elliptical cakes similar to candied gourd strings are evenly distributed on the steel push-and-pull rod, and the 4 steel elliptical cakes are placed in 4 interval parts of the square steel cylinder; when the push-and-pull rod moves to and fro, non-perfect elastic collision between the steel elliptical cakes and shape memory alloy occurs, thus achieving the purpose of exchanging momentum and dissipating kinetic energy. The invention has the effects and benefits that the energy consumption capacity of the energy consumer is in direct proportion to amplitude thereof; when the amplitude is relatively low, every steel elliptical cake moves to and fro to consume energy in respective space thereof; when the amplitude is relatively high, the steel elliptical cake can enter adjacent interval parts to consume energy by collision; in the process, as deformation of the shape memory alloy plates is relatively large, relatively strong restoring force is generated.

Description

technical field [0001] The invention belongs to the technical field of civil engineering and relates to a collision type shape memory alloy energy dissipator. Background technique [0002] Strong earthquakes have brought huge disasters to human beings. The massive destruction and collapse of buildings in earthquakes is the direct cause of earthquake disasters. Therefore, it is of great practical significance to construct houses scientifically, improve their anti-seismic ability, and reduce earthquake damage losses. The traditional anti-seismic structural system "resists" earthquake action by enhancing the performance of the structure itself, that is, storing and dissipating seismic energy by enhancing the resistance of structural components and increasing ductility. However, this method has difficulties in ensuring safety and adapting to The limitations of poor capacity and poor economy. Energy dissipation technology provides a reasonable and effective way for structures ...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a collision type shape memory alloy energy dissipator, which aims to solve the problems of existing energy dissipators such as large residual deformation, poor durability, and limited energy dissipation capacity.

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