Mild steel damper

Abstract

The invention relates to a mild steel damper. The mild steel damper comprises a friction layer structure, an energy consumption steel structure, energy consumption steel sheets, an upper connecting plate, a lower connecting plate, an upper anchor plate and a lower anchor plate, wherein the friction layer structure is connected with the upper connecting plate, the energy consumption steel sheets are arranged at the two sides of the energy consumption steel structure, the tops of the energy consumption steel sheets are welded to the upper anchor plate, the bottoms of the energy consumption steelsheets are welded to the lower anchor plate, the upper anchor plate and the lower anchor plate are fixed to the upper connecting plate and the lower connecting plate through bolts, and the upper endlower ends of the energy consumption structure are fixed to the upper connecting plate and the lower connecting plate through bolts. The mild steel damper has the advantages that a staged yield mild steel damper has three damping defensive lines of friction energy consumption of rubber sheets and steel plates, plastic deformation energy consumption of the energy consumption steel sheets and plastic deformation energy consumption of the energy consumption steel structure, the mild steel damper is safer and more reliable, has good energy consumption capacity and has a more extensive applicationprospect in practical engineering.

Description

technical field [0001] The invention belongs to the field of anti-seismic and shock-absorbing civil engineering, in particular to a mild steel damper used for frame beams. Background technique [0002] Metals can consume the energy input by earthquakes through elastic-plastic deformation. Mild steel has the characteristics of high density, good plasticity, large linear expansion coefficient and low yield strength, so that mild steel can absorb a large amount of energy during elastic-plastic deformation, and has a high Flexibility and ductility, good deformation tracking ability, environment and temperature have no obvious impact on its performance, and steel has the characteristics of low cost, so almost all steel elastoplastic energy dissipators are made of mild steel and low yield Made of point steel. The main types currently developed are beam energy dissipation devices, steel rod energy dissipation devices, steel element energy dissipation devices, circular (square fram...

AI Technical Summary

Problems solved by technology

[0003] The known metal damper has a single form, and there are four problems

First, when the mild steel damper is stressed in the plane, it is easy to produce the phenomenon of local stress concentration, residual stress and strain; second, most of the mild steel dampers studied at this stage are limited to the force in the plane, and Instability has yet to be resolved

Third, if the metal damper is damaged after an earthquake, it needs to be replaced, which is uneconomical

Fourth, the existence of the damper can only be used for a specific part of the beam, which is not flexible

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