Self-resetting energy consumption steel support with shape memory alloy damper

Abstract

The invention relates to the technical field of energy dissipation buildings, in particular to a self-resetting energy consumption support with a shape memory alloy damper. The support comprises the core shape memory alloy damper and a cross-shaped steel column, wherein the shape memory alloy damper is composed of two sets of inner and outer sleeves, and a sliding groove is arranged between each set of the inner and outer sleeves so that the sleeves can slide relatively on a rail. The two inner sleeves and the inner sleeve and the outer sleeve are both connected through pre-tensioned superelastic shape memory alloy ribs, and an outer end plate of the shape memory alloy damper is connected with the cross-shaped steel column. The support is characterized in that the device can make the superelastic shape memory alloy ribs in a tensioned working state by relative sliding of the inner and outer sleeves in the shape memory alloy damper whether the support is in the tensioned or pressed working state, and the support is stable and good in self-reset and energy consumption, and can effectively improve the seismic performance of the buildings.

Description

technical field [0001] The invention relates to the technical field of energy-dissipating and shock-absorbing buildings, in particular to a self-resetting energy-dissipating support with a shape memory alloy damper. Background technique [0002] Earthquake is characterized by randomness, suddenness and uncertainty, and is a very destructive natural disaster. How to effectively reduce the response of engineering structures under dynamic loads such as earthquakes and control the residual deformation of structures, so as to improve the ability of structures to resist natural disasters has always been a research hotspot in the field of civil engineering. [0003] Energy-dissipating bracing can improve the lateral stiffness and strength of the frame structure, and can effectively dissipate seismic energy when an earthquake occurs. It is an effective and economical structural form proven by actual engineering. However, traditional supports are prone to buckling under compression,...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a self-resetting energy-dissipating steel support with a shape memory alloy damper to solve the technical problems of poor energy dissipation and shock absorption and non-recoverable residual deformation existing in the steel frame support in the prior art

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