Wind and Structures

Techno-Press (테크노프레스)
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On the flutter characteristics of separated two box girders

  • Matsumoto, Masaru (Department of Civil and Earth Resources Engineering, Kyoto University) ;
  • Shijo, Rikuma (Department of Civil and Earth Resources Engineering, Kyoto University) ;
  • Eguchi, Akitoshi (Department of Civil and Earth Resources Engineering, Kyoto University) ;
  • Hikida, Tetsuya (Department of Civil and Earth Resources Engineering, Kyoto University) ;
  • Tamaki, Hitoshi (Department of Civil and Earth Resources Engineering, Kyoto University) ;
  • Mizuno, Keisuke (Department of Civil and Earth Resources Engineering, Kyoto University)
  • Published : 2004.08.25
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Abstract

The flutter characteristics of long span bridges are discussed from the point of the unsteady pressure distribution on bridge deck surface during heaving/torsional vibration related to the aerodynamic derivatives. In particular, it is explained that the coupling terms, which consist of $A_1^*$ and $H_3^*$, play a substantial role on the coupled flutter, in comparison with the flutter characteristics of various structural sections. Also the effect of the torsional/heaving frequency ratio of bridge structures on the flutter instability is discussed from the point of the coupling effect between heaving and torsional vibrations.

Keywords

References

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  3. Matsumoto, M. et al. (1997), "Torsional flutter of bluff bodies", J. Wind Eng. Ind. Aerodyn., 69-71, 871-882. https://doi.org/10.1016/S0167-6105(97)00213-4
  4. Matsumoto, M. and Shijo, R. (2001), "Key point for flutter stabilization of long span bridge", Wind Hazard Mitigation in Urban Area, TIP.
  5. Sato, H. et al. (2002), "Full aeroelastic model test of a super long-span bridge with slotted box girder", J. Wind Eng. Ind. Aerodyn., 90(12-15), 2023-2032. https://doi.org/10.1016/S0167-6105(02)00318-5
  6. Scanlan, R.H., Belbeau, J.G. and Budlong, K.S. (1974), "Indicial aerodynamic functions for bridge decks", J. Eng. Mech. Div., Proc. ASCE, 100(EM4), 657-672.

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