Friction and extrusion combined energy dissipation damper

Abstract

The invention belongs to the field of building structural vibration control, and particularly relates to a friction and extrusion combined energy dissipation damper. The friction and extrusion combined energy dissipation damper comprises energy dissipation steel plates, energy dissipation ribs, internal elliptical hoes, a foaming aluminum energy dissipation plate shaped like a Chinese character 'feng', connecting plates, connecting plates screw holes, lead dot holes, pulling and pressing rotary connecting energy dissipation steel plates, lead dots and viscoelastic friction energy dissipation base plates. The friction and extrusion combined energy dissipation damper has the beneficial effects that the initial rigidity is higher, yield area of steel is large, and the energy dissipation effect is good, the energy dissipation steel plates, the pulling and pressing rotary connecting energy dissipation steel plates and the friction energy dissipation base plates are connected through lead dots. The pulling and pressing rotary connecting energy dissipation steel plates and the foaming aluminum energy dissipation plate shaped like the Chinese character 'feng' can carry out friction and extrusion each other to dissipate energy through pulling, pressing and rotating the pulling and pressing rotary connecting energy dissipation steel plates. The pulling and pressing rotary connecting energy dissipation steel plates drive the energy dissipation steel plates to deform and dissipate the energy, in addition, an energy dissipation mode of friction each other between the pressing and rotating the pulling and pressing rotary connecting energy dissipation steel plates and the viscoelastic friction energy dissipation base plates when pulling, pressing and rotating is adopted to enable thedamper can pull, press and rotate, the energy dissipation effect is better, and the earthquake response of building structures can be reduced.

Description

technical field [0001] The invention belongs to the field of vibration control of building structures, in particular to a friction and extrusion combined energy dissipation damper. Background technique [0002] Metallic yielding dampers are various forms of damping energy dissipators made of mild steel or other soft metal materials. Metals have good hysteretic properties after yielding, and some metals have elastic-plastic hysteretic deformation energy dissipation, including mild steel dampers, lead dampers, and shape memory alloys (SMA) dampers. The mechanism of its vibration control on the structure is to dissipate part of the energy of the structure vibration through the yield hysteresis energy consumption of the metal, so as to reduce the structural response. The mild steel damper is to make full use of the soft steel after entering the plastic stage Good hysteresis characteristics. In 1972, American scholars such as Kelly and Skinner first began to study the use of th...

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Problems solved by technology

[0003] At present, the initial stiffness of many dampers is not large enough, the yield dispersion area of ​​the material is not large enough, and the design of the energy-dissipating structure is not very sufficient, so that the energy such as kinetic energy or elastic potential energy of the structure cannot be fully converted into heat energy and dissipated. Many dampers are only It can increase the overall stiffness of the building structure during normal use, but when a large earthquake occurs, many dampers cannot meet the requirements of reducing the seismic response of the building structure

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