한국소음진동공학회논문집 (Transactions of the Korean Society for Noise and Vibration Engineering)

  • 제21권3호
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  • Pages.234-240
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  • 2011
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  • 1598-2785(pISSN)
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  • 2287-5476(eISSN)
한국소음진동공학회 (The Korean Society for Noise and Vibration Engineering)
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붕괴하중을 받는 MR 댐퍼의 Bingham 모델을 이용한 저항성능 정해

Exact Solution for Resistance Capacity utilizing Bingham Model of MR Dampers under Collapse Load

  • 성지영 (단국대학교 대학원 건축공학과) ;
  • 민경원 (단국대학교 건축대학 건축공학과) ;
  • 김진구 (성균관대학교 건축공학과)
  • 투고 : 2010.11.29
  • 심사 : 2011.02.07
  • 발행 : 2011.03.20
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초록

This study deals with progressive collapse of a structure retrofitted with MR dampers. In order to assess their effect of mitigation which prevents progressive collapse, control force ratio is defined by friction force of MR dampers divided by external force. First, simple model of a structure with MR dampers is suggested. Using the model, exact solution with the control force ratio is obtained. When and where the system is stopped is predicted by the derived solution. Through the dissipated energy by MR dampers during collapse event, equivalent damping ratio is derived. Finally, comparison of exact and equivalent solutions is presented.

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참고문헌

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