Wind and Structures

  • 제5권6호
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  • Pages.479-492
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  • 2002
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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Time domain flutter analysis of the Great Belt East Bridge

  • 투고 : 2000.02.15
  • 심사 : 2001.03.15
  • 발행 : 2002.12.25
⟨ 이전 논문 다음 논문 ⟩

초록

A finite element aerodynamic model that can be used to analyse flutter instability of long span bridges in the time domain is presented. This approach adopts a simplified quasi-steady formulation of the wind forces neglecting the vortex shedding effects. The governing equations used are effective only for reduced velocities $V^*$ sufficiently great: this is generally acceptable for long-span suspension bridges and, then, the dependence of the wind forces expressions of the flutter derivatives can be neglected. The procedure describes the mechanical response in an accurate way, taking into account the non-linear geometry effects (large displacements and large strains) and considering also the compressed locked coil strands instability. The time-dependence of the inertia force due to fluid structure interaction is not considered. The numerical examples are performed on the three-dimensional finite element model of the Great Belt East Bridge (DK). A mode frequency analysis is carried out to validate the model and the results show good agreement with the experimental measurements of the full bridge aeroelastic model in the wind tunnel tests. Significant parameters affecting bridge response are introduced and accurately investigated.

키워드

참고문헌

  1. Astiz, M. A. (1998), "Flutter stability of very long suspension bridges", J. Bridge Eng., 3(3), 132-139. https://doi.org/10.1061/(ASCE)1084-0702(1998)3:3(132)
  2. Bartoli, G., Borri, C. and Gusella, V. (1997), "On the influence of wind turbolence on bridge decks flutter", Aspects in Modern Computational Structural Analysis, Ed. by Meskouris & Wittek, Balkema, Rotterdam.
  3. D'Asdia, P. and Sepe, V. (1997), "Aeroelastic instability of long span suspended bridges: a multi mode approach", Proc. of the 2nd EACWE International Conference, Genova, June.
  4. Diana, G. and Cheli F. (1993), Dinamica e vibrazione dei sistemi meccanici, 2$^{\circ}$ Vol., UTET Libreria, Torino.
  5. Diana, G., et al. (1998), "Aerodynamic design of very long-span suspension bridges", IABSE Symposium, Kobe, 79, IABSE Reports.
  6. Diana, G. and Falco, M. (1990), "Indagine analitico sperimentale su un ponte sospeso di grande luce soggetto all'azione del vento", Atti del 1$^{\circ}$ Convegno Nazionale di Ingegneria del Vent IN-VENTO-90, Firenze, October.
  7. Dyrbye, C. and Hansen, S. D. (1997), Wind Loads on Structures, J. Wiley & Sons, Inc., Baffins Lane, Chichester.
  8. Hansen, O. R. (1998), "Aerodynamics retrofits for the suspension bridge", East Bridge, Ed. by N. J. Gimsing, A/ S Storebæltsforbindelsen, Kobenhavn, 383-384.
  9. Larsen, A. (1998), "Aerodynamics investigation of the superstructure", East Bridge, Ed. by N. J. Gimsing, A/S Storebæltsforbindelsen, Kobenhavn, 78-85.
  10. Larsen, A. (1998), "Computer simulation of wind-structure interaction in bridge aerodynamics", Struct. Eng. Int., February, 105-111.
  11. Larsen, A. (1998), "Wind tunnel tests, suspension bridge", East Bridge, Edited by Gimsing N. J., A/S Storebæltsforbindelsen, Kobenhavn, 187-192.
  12. Larsen, A. and Jacobsen, A. S. (1992), "Aerodynamics design of the great belt east bridge", Aerodynamics of Large Bridges, Ed. by Larsen A., Balkema, Rotterdam, 269-283.
  13. Li, Q. C. (1995), "Measuring flutter derivatives for bridge sectional models in water channel", J. Eng. Mech., Jan., 121(1), 90-101. https://doi.org/10.1061/(ASCE)0733-9399(1995)121:1(90)
  14. Miyata, T., Yamada, H. and Boonyapinyo, V. (1999), "Advanced aerodynamic analysis of suspension bridges by state-space approach", J. Struct. Eng., Dic. , 125(12), 1357-1366. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:12(1357)
  15. Pedersen, A. and Hauge, L. (1998), "Design of the suspension bridge", East Bridge, Ed. by Gimsing N. J., A/S Storebæltsforbindelsen, København, 167-186.
  16. Reinhold, T. A., Brinch, M. and Damsgaard, A. (1992), "Wind tunnel tests for the Great Belt Link", Aerodynamics of Large Bridges, Ed. by Larsen A., Balkema, Rotterdam, 255-267.
  17. Rolla, E., Sparatore, U. and Testa, A. (1997), "The construction of the storebælt east bridge superstructure (DK)", Proc. of the 2nd EACWE International Conference, Genova, June.
  18. Scanlan, R.H. and Simiu, E. ($1996^{3}$), Wind Effects on Structures. Fundamentals and Application to Design, J. Wiley & Sons, Inc., New York.
  19. Sepe, V. and Augusti, L. (1999), "Unilateral behaviour of hangers and wind-induced oscillations of suspension bridges", Proc. of the 6th Pan American Congress of Applied Mechanics PACAM VI, Rio de Janeiro, January.
  20. Sepe, V., Ciappi, E. and D'Asdia, P. (1996), "Instabilità aeroelastica multimodale di ponti sospesi", Atti del 4$^{\circ}$ Convegno Nazionale di Ingegneria del Vento IN-VENTO-96, Trieste, September.
  21. Sparatore, U. (1998), "La realizzazione del ponte sullo Storebaelt", COINFRA S.p.A. Seminar, Universita di Genova - DISEG, Genova, 30 April.
  22. Tanaka, H. (1998), "Aeroelastic stability of suspension bridges during erection", Struct. Eng. Int., February, 118- 123.
  23. Tanaka, H. and Livesey, F. M. (1996), Wind Tunnel Study of the Storebælt East Suspension Bridge in Its Early Deck Erection Phases, Danish Maritime Institute, 15 November.
  24. Zasso, A. (1996), "Flutter derivatives: advantages of a new representation convention", J. Wind Eng. Ind. Aerod., 60, 35-47. https://doi.org/10.1016/0167-6105(96)00022-0

피인용 문헌

  1. Flutter analysis of long-span bridges using ANSYS vol.10, pp.1, 2007, https://doi.org/10.12989/was.2007.10.1.061