Shearing-bending parallel staged hierarchical energy-dissipation damper

Abstract

The invention discloses a shearing-bending parallel staged hierarchical energy-dissipation damper. The shearing-bending parallel staged hierarchical energy-dissipation damper comprises a groove type steel plate base, a steel plate, bending yield type damper bodies and a shearing yield type damper body, wherein an opening is formed in one end of the groove type steel plate base; the steel plate stretches into the groove type steel plate base from the opening end of the groove type steel plate base; a long-strip-like hole is formed in the bottom of the steel plate; a flange connected with a frame structure is arranged on the top of the steel plate; the shearing yield type damper body penetrates through the long-strip-like hole, and the two ends of the shearing yield type damper body are connected with the internal side wall of the groove type steel plate base; the bending yield type damper bodies are arranged on the two sides of the steel plate side by side, and the other ends of the bending yield type damper bodies are connected with the inner side wall of the groove type base, and located above the shearing yield type damper body. In small or middle seism, the bending yield type damper bodies preferentially yield to dissipate energy, and when the seism magnitude is too high, the bending yield type damper bodies and the shearing yield type damper body yield together to dissipateenergy, and hierarchical yielding energy dissipation is achieved.

Description

technical field [0001] The invention belongs to the field of energy dissipation and shock absorption of building structures, and more specifically relates to a shear-bending parallel type graded energy dissipation damper. Background technique [0002] In recent years, there have been many large and small earthquakes at home and abroad, causing great casualties and property losses. Earthquake disasters have become one of the most serious natural disasters faced by human beings. The traditional anti-seismic method mainly relies on the deformation and energy consumption of the building itself to resist the earthquake force. This anti-seismic method will cause irreparable damage to the building. For decades, after continuous research by domestic and foreign scholars, it is proposed to add a damper to the building, and use the energy-dissipating element of the damper to absorb the energy input by the earthquake to protect the main load-bearing components of the building, that is,...

AI Technical Summary

Problems solved by technology

However, most of the existing metal dampers at present are energy-consuming in the yield of moderate earthquakes, which leads to a limited increase in the yield bearing capacity of the dampers during major earthquakes, and the dampers cannot play a greater role in energy consumption during major earthquakes.

There is also a part of the metal damper that yields and dissipates energy only when it is subjected to a large earthquake, while it is generally in the elastic stage during a moderate earthquake and does not consume energy, so it cannot dissipate the earthquake during a moderate earthquake The role of energy

In addition, more metal dampers are in an elastic state during small earthquakes and cannot play a role in energy dissipation

It can be seen that the existing metal dampers show limitations in the face of different magnitudes

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