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

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Reduction of Vibration Responses of a Bridge due to Vehicles

차량으로 인한 다리의 진동응답을 줄이는 방법

  • Lee, Gun-Myung (Engineering Research Institute, Gyeongsang National University) ;
  • Ju, Young-Ho (Doosan Heavy Industries and Construction) ;
  • Park, Mun-Soo (Jinju Campus, Korea Polytechnic VII College)
  • Received : 2012.09.07
  • Accepted : 2012.12.27
  • Published : 2013.02.20
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Abstract

The responses of a bridge due to a moving vehicle are obtained analytically by modeling a vehicle as a constant point force. From the results it is found that the responses after a vehicle leaves the bridge become very small for some speeds of a vehicle. When a vehicle is modeled as a two dof system for a more accurate analysis, the same phenomenon is observed while the roughness of the surface of the bridge is small. Determining the fundamental frequency of a bridge so that one of the above speeds coincides with a frequent speed of vehicles, the responses of a bridge can be minimized.

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References

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