Tension and compression energy dissipation metal damper

Abstract

The invention belongs to the field of architectural structure vibration control, and provides a tension and compression energy dissipation metal damper. A cylinder structure is enclosed by an outer semicircle energy dissipation steel plate and an end energy dissipation steel plate. Initial rigidity is high, material yield dispersion area is large, and recoverable deformation is high. During an earthquake, an upper plate and a lower plate drive the outer semicircle energy dissipation steel plate, the end energy dissipation steel plate and an energy dissipation partition mild steel plate to vibrate. The energy dissipation partition mild steel plate and a round mild steel inner cylinder are in intercoordination to extrude and dissipate energy, and energy dissipation deformation can be conducted by self-curving. During relative displacement, friction between the energy dissipation partition mild steel plate and foamed aluminium energy dissipation materials is conducted to extrude and dissipate energy in a friction mode, and therefore energy such as kinetic energy or elastic potential energy of the structure can convert into thermal energy and dissipate. Spring energy dissipation bodiesand the energy dissipation partition mild steel plate are synergistically stressed to improve energy dissipation capacity of vibration in the tension and compression direction of the damper, and therefore energy dissipation of the damper is fuller, during normal application, overall rigidity of the architectural structure can be increased, and during the earthquake, earthquake reaction of the architectural structure can be reduced.

Description

technical field [0001] The invention belongs to the field of vibration control of building structures, in particular to a tension-compression energy-consuming metal 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, 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] Because the external energy transmitted to the building structure due to earthquakes and other reasons is the root cause of the vibration of the structure, the energy dissipation properties of the damper will be the key to reducing the vibration response of the structure. The dampers currently researched and developed are prone to insufficient energy dissipation characteristics and The uncoordinated structure loses the restraint and anti-buckling effects, resulting in a significant reduction in its energy dissipation capacity

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