Pounding Mechanism and Mitigation Effect of Pounding between Adjacent Decks during Strong Earthquake

강지진시 인접교량간의 충돌 매커니즘과 충격 저감 효과

  • Kwon, Young-Rog (Dept. of Civil Engineering, College of Engineering, Dong-A Univ.) ;
  • Kim, Jin-Woo (Dept. of Civil & Environment Engineering, Gyeongsang National Univ., Institute of Marine Industry) ;
  • Choi, Kwang-Kyu (Dept. of Civil Engineering, College of Engineering, Dong-A Univ.)
  • 권영록 (동아대학교 공과대학 토목공학과) ;
  • 김진우 (경상대학교 토목공학공학부) ;
  • 최광규 (동아대학교 공과대학 토목공학과)
  • Published : 2006.10.31

Abstract

An isolated bridge using a laminated rubber bearing provides an elastic support of continuous span and prevents the transmission of excessive seismic force from the substructure of the bridge, which uses a metal bearing, as this permits a relative displacement between the super-and substructure. Hawever, this kind of bridge is caused long periodic, as a result of enlargingtotal thickness of the rubber, since it corresponds to temperature change and increases the horizontal displacement of the superstructure. This paper uses a numerical study to describe the pounding problem between adjacent decks when subjected to a strong earthquake. Furthermore, numerical results are clarified for the buffer rubber used to mitigate the pounding force between adjacent decks.

Keywords

References

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