A Combined Staged Yield Metal Damper

Abstract

The invention discloses a combined and phased yield metal damper. The damper comprises an upper connecting plate (4) and a lower connecting plate (5). A first energy consumption steel board (1), second energy consumption steel boards (2), and third energy consumption steel boards (3) are fixedly arranged between the upper connecting plate (4) and the lower connecting plate (5). The first energy consumption steel board (1) is vertically arranged between the upper connecting plate (4) and the lower connecting plate (5) in order to bear the energy consumption effect under small vibration. The third energy consumption steel boards (3) are arranged on two sides of the first energy consumption steel board (1) and used for constraining the first energy consumption steel board (1) and supporting the effect of energy consumption at large vibration. The side wall of the first energy consumption steel board (1) between the two third energy consumption steel boards (3) is provided with the second energy consumption steel boards (2), as reinforcing ribs of the first energy consumption steel board (1), and used for supporting energy vibration at large vibration. The metal damper has good phased yield capacities at small and great vibration and capable of effectively improving tonnage of the damper and is conveniently constructed.

Description

technical field [0001] The invention relates to the technical field of dampers, in particular to a combined staged-yield metal damper which makes curved energy-dissipating steel plates into shear-type energy-dissipating plates consisting of reinforcing ribs and flange parts. Background technique [0002] Metal dampers currently have the following problems in terms of design and performance: [0003] 1. The existing large tonnage metal dampers usually have a large size, which causes inconvenience in installation and construction; [0004] 2. The existing metal dampers have a single energy dissipation mechanism, and most of them cannot meet the requirements of small earthquakes and large earthquakes at the same time. During a small earthquake, it is in an elastic state, with little or no energy consumption; although the yield displacement of the other part of the damper is small, it can meet the yield energy consumption during a small earthquake, and it also has better energy...

AI Technical Summary

Problems solved by technology

[0003] 1. The existing large tonnage metal dampers usually have a large size, which causes inconvenience in installation and construction;

[0004] 2. The existing metal dampers have a single energy dissipation mechanism, and most of them cannot meet the requirements of small earthquakes and large earthquakes at the same time. During a small earthquake, it is in an elastic state, with little or no energy consumption; although the other part of the damper has a small yield displacement, it can meet the yield energy consumption during a small earthquake, and it also has good energy dissipation and ductility performance during a large earthquake, but this The damper tends to increase the additional stiffness of the structure, which leads to the increase of the earthquake effect, which is not conducive to the earthquake resistance of the structure;

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