Journal of the Earthquake Engineering Society of Korea (한국지진공학회논문집)

Earthquake Engineering Society of Korea (한국지진공학회)
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Seismic Performance Evaluation of Structures Retrofitted with Viscoelastic-Slit Hybrid Dampers

점탄성-슬릿 복합댐퍼로 보강된 건물의 내진성능평가

  • Kim, Minsung (Department of Civil and Architectural Engineering, Sungkyunkwan University) ;
  • Xu, Zhaodong (Department of Civil Engineering, Southeast University) ;
  • Kim, Jinkoo (Department of Civil and Architectural Engineering, Sungkyunkwan University)
  • 김민성 (성균관대학교 건설환경공학부) ;
  • 자오동쉬 (동남대학교 토목공학과) ;
  • 김진구 (성균관대학교 건설환경공학부)
  • Received : 2018.08.06
  • Accepted : 2018.10.02
  • Published : 2018.11.01
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Abstract

This study investigates the seismic performance of a hybrid seismic energy dissipation device composed of a viscoelastic damper and a steel slit damper connected in parallel. A moment-framed structure is designed without seismic load and is retrofitted with the hybrid dampers. The model structure is transformed into an equivalent simplified system to find out optimum story-wise damper distribution pattern using genetic algorithm. The effectiveness of the hybrid damper is investigated by fragility analysis of the structure with and without the dampers. The analysis results show that after seismic retrofit the probability of reaching damage states, especially the complete damage state, of the structure turn out to be significantly reduced.

Keywords

References

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