Multi-lead-dot locking type friction rotating disc damper

Abstract

The invention belongs to the field of vibration control of building structures, and provides a multi-lead-dot locking type friction rotating disc damper. A viscoelastic friction energy-dissipating backing plate and a tension-compression and rotation friction energy-dissipating steel plate are arranged on the middle portion between two energy-dissipating circular steel plates, wherein circular holes are formed in the two energy-dissipating circular steel plates. A connecting plate is arranged in the middle position of the fan-shaped edge of the tension-compression and rotation friction energy-dissipating steel plate. According to the multi-lead-dot locking type friction rotating disc damper, the initial stiffness is large, the steel yield area is large, and the energy-dissipating effect isgood; the tension-compression and rotation friction energy-dissipating steel plate is arranged between energy-dissipating circular steel plates and the viscoelastic friction energy-dissipating backingplate in a sandwiched mode, wherein the circular holes are formed in the two energy-dissipating circular steel plates; and mutual extrusion is carried out for energy-dissipating during tension-compression and rotation, so that the damper has better tension-compression and rotation energy-dissipating effects, the damper has more sufficient energy-dissipating due to arrangement of energy dissipation ribs, circular holes which are formed inside and central circular holes through the compound mode, the arranged lead dots have a good energy-dissipating effect, are easy to replace, and can adjust the damping energy-dissipating effect and energy-dissipating amplification factor according to the actual situation of the building structures, and the seismic response of the building structures is reduced.

Description

technical field [0001] The invention belongs to the field of vibration control of building structures, in particular to a multi-lead pin locking type friction turntable 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 o...

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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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