Multi-energy-consuming shearing damper

Abstract

The invention provides a multi-energy-consuming shearing damper, and belongs to the field of architectural structure vibration control. A main body of the multi-energy-consuming shearing damper is a structure enclosed by end plates, side plates and closure plates, a cavity in the enclosed structure is provided with a shearing friction damping layer, the enclosed structure is internally provided with a plurality of energy-consuming steel plates, connecting energy-consuming steel plates, shearing damping core plates and arc-shaped shearing extrusion energy-consuming steel plates respectively, and the energy-consuming steel plates and the shearing damping core plates all stretch out of the end plates and are connected with connecting plates arranged on the outer portion. The multi-energy-consuming shearing damper has the advantages that the energy-consuming steel plates and the connecting energy-consuming steel plates can provide powerful vertical energy-consuming support and have reasonable initial vertical stiffness, the structural design of the energy-consuming steel plates clamping the shearing damping core plates is adopted, the force on the energy-consuming steel plates can be dispersed uniformly when shearing occurs, and the design is reasonable.

Description

technical field [0001] The invention belongs to the field of vibration control of building structures, in particular to a multiple energy consumption shear 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 this property of mi...

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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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