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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Seismic Performance Evaluation of Cone-type Friction Pendulum Bearing System Using Shaking Table Test

진동대실험을 통한 원추형 마찰진자베어링의 내진성능 평가

  • 전법규 (부산대학교 사회환경시스템공학과) ;
  • 장성진 (부산대학교 사회환경시스템공학과) ;
  • 김남식 (부산대학교 사회환경시스템공학부)
  • Received : 2011.03.11
  • Accepted : 2011.06.22
  • Published : 2011.07.20
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Abstract

FPS(friction pendulum system) is an isolation system which is possible to isolate structures from earthquake by pendulum characteristic. Natural frequencies of the structures could be determined by designing the radius of curvature of FPS. Thus, response vibration could be reduced by changing natural frequency of structures from FPS. But effective periods of recorded seismic wave were various and estimation of earthquake characteristic could be difficult. If effective periods of seismic wave correspond to natural frequency of structures with FPS, resonance can be occurred. Therefore, CFPBS(cone-type friction pendulum bearing system) was developed for controlling the acceleration and displacement of structure by the slope of friction surfaces. Structural natural frequency with CFPBS can be changed according to position of ball on the friction surface which was designed cone-type. Therefore, superstructures on CFPBS could be isolated from earthquake. In this study, seismic performance of CFPBS was evaluated by numerical analysis and shaking table test.

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References

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