Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Performance Test of a Steel Frame with Multi-action Hybrid Dampers

다중거동 복합형 감쇠장치를 적용한 철골골조의 내진성능실험

  • Roh, Ji Eun (Seismic Retrofit and Remodeling Research Center Dankook University) ;
  • Heo, Seok Jae (Seismic Retrofit and Remodeling Research Center Dankook University) ;
  • Lee, Sang Hyun (Department of Architectural Engineering, Dankook University)
  • 노지은 (단국대학교 리모델링연구소) ;
  • 허석재 (단국대학교 리모델링연구소) ;
  • 이상현 (단국대학교 건축공학과)
  • Received : 2018.03.27
  • Accepted : 2018.11.06
  • Published : 2019.01.01
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Abstract

In this study, the effectiveness of a multi-action hybrid damper (MHD) composed of lead rubber bearing (LRB) and friction pad was verified in terms of seismic performance improvement of a frame structure. The LRB and the friction elements are connected in series, so the LRB governs the intial small deformation and the friction determines large deformation behavior. Cyclic loading tests were conducted by using a half scale steel frame structure with the MHD, and the results indicated that the structure became to have the stable trilinear hysteresis with large initial stiffness and first yielding due to the LRB, and the second yielding due to the friction. The MHD could significantly increase the energy dissipation capacity of the structure and the hysteresis curves obtained by tests were almost identical to the analytically estimated ones.

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References

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