Mild steel yielding and friction combined damper

Abstract

The invention relates to a mild steel yielding and friction combined damper and relates to a building structure vibration control device. The mild steel yielding and friction combined damper comprises a T-shaped steel plate, single-face friction plates, a double-face friction plate, a friction force adjusting bolt, a friction force adjusting nut, a friction plate rotating rod, a fixing rotary shaft, a sliding hole, a support connecting rotary shaft and multi-hole mild steel yielding dampers. The friction plates are located in the middle of the T-shaped steel plate, one end of the double-face friction plate is connected with a beam through two single-face friction plates and the T-shaped steel plate, and the other end of the double-face friction plate is connected with an inverted V-shaped support through the friction plate rotating rod and a support connecting plate. Two multi-hole mild steel yielding dampers are symmetrical with respect to the friction plate rotating rod, one ends of the multi-hole mild steel yielding dampers are connected with the beam through the T-shaped steel plate, and the support connecting plate arranged at other ends of the multi-hole mild steel yielding dampers is connected with the inverted V-shaped support. The mild steel yielding and friction combined damper has high initial stiffness, a system is stressed evenly and stably, materials are saved, the fact that an energy-consuming system is stable and effective is guaranteed, and the mild steel yielding and friction combined damper is simple in structure, economical and practical.

Description

technical field [0001] The invention relates to a vibration control device for a building structure, in particular to a mild steel yield and friction combined damper for building structure vibration control. 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 the elastic-plastic hysteretic deformation energy dissipation of some metals is used, including mild steel yield 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 structural vibration through the yield hysteresis energy dissipation of the metal, so as to achieve the purpose of reducing the structural response. [0003] The mild steel yield damper is to make full use of the good hysteresis characteristics of mild steel after entering the plastic stage. ...

AI Technical Summary

Problems solved by technology

However, when the wind vibration and earthquake response of the structure are too large, the energy dissipation capacity may be significantly reduced due to excessive deformation. In order to ensure the energy dissipation capacity of the mild steel yield damper, it is necessary to make necessary improvements

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