Wind and Structures

  • 제28권5호
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  • Pages.331-345
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  • 2019
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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Influence of geometric configuration on aerodynamics of streamlined bridge deck by unsteady RANS

  • Haque, Md. N. (Department of Civil Engineering, East West University) ;
  • Katsuchi, Hiroshi (Department of Civil Engineering, Yokohama National University) ;
  • Yamada, Hitoshi (Department of Civil Engineering, Yokohama National University) ;
  • Kim, Haeyoung (Department of Civil Engineering, Yokohama National University)
  • 투고 : 2017.02.16
  • 심사 : 2019.03.11
  • 발행 : 2019.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

Long-span bridge decks are often shaped as streamlined to improve the aerodynamic performance of the deck. There are a number of important shaping parameters for a streamlined bridge deck. Their effects on aerodynamics should be well understood for shaping the bridge deck efficiently and for facilitating the bridge deck design procedure. This study examined the effect of various shaping parameters such as the bottom plate slope, width ratio and side ratio on aerodynamic responses of single box streamlined bridge decks by employing unsteady RANS simulation. Steady state responses and flow field were analyzed in detail for wide range of bottom plate slopes, width and side ratios. Then for a particular deck shape Reynolds number effect was investigated by varying its value from $1.65{\times}10^4$ to $25{\times}10^4$. The aerodynamic response showed very high sensitivity to the considered shaping parameters and exhibited high aerodynamic performance for a particular combination of shaping parameters.

키워드

참고문헌

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