Journal of the Architectural Institute of Korea (대한건축학회논문집)

Architectural Institute of Korea (대한건축학회)
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A Study on Hysteresis Characteristics and Analysis Model of Hybrid Damping Device - Hybrid Damping Device Consisting of Steel Slit and Rotational Friction Damping Device -

하이브리드 감쇠장치의 이력특성 및 해석모델에 관한 연구 - 강재슬릿과 회전마찰 감쇠장치를 결합한 복합 감쇠장치 -

  • Received : 2021.03.04
  • Accepted : 2021.07.27
  • Published : 2021.11.30
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Abstract

The present study proposed a hybrid damping system that can minimize structural damage caused by an earthquake. In hybrid damping system, a rotational friction damping device and a steel hysteresis damping device are connected in parallel. The rotational friction damping device with high stiffness operates at low displacement; and then, it behaves in a composite movement at high displacement to dissipate the energy generated by an earthquake. To propose the hysteresis characteristic and numerical analysis model of the composite damping device, a total of 15 specimens were prepared and were made to undergo cyclic loading according to the damping device test methods of KDS 41 17 00 and MOE 2019. From the results of the experiment, the maximum and minimum loads at the origin, as well as in each direction, and the hysteresis curve area were determined to be within the maximum ±6% of the average value, satisfying the suitability criteria of Korea damping devices. The four numerical analysis models, which were proposed for the vibration suppression and seismic reinforcement effect evaluation, adequately simulated the experimental results; however, the tri-linear model exhibited a tendency to underestimate the energy absorption capacity at 60mm the experimental displacement.

Keywords

Acknowledgement

이 연구는 2020년도 한국연구재단 연구비 지원에 의한 결과의 일부임. 과제번호:2020R1C1C1005779

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