Wind and Structures

  • 제24권4호
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  • Pages.367-384
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  • 2017
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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Wind tunnel investigation on flutter and buffeting of a three-tower suspension bridge

  • Zhang, Wen-ming (Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education, Southeast University) ;
  • Ge, Yao-jun (State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University)
  • 투고 : 2015.11.12
  • 심사 : 2017.02.22
  • 발행 : 2017.04.25
⟨ 이전 논문 다음 논문 ⟩

초록

The Maanshan Bridge over Yangtze River in China is a new long-span suspension bridge with double main spans of $2{\times}1080m$ and a closed streamline cross-section of single box deck. The flutter and buffeting performances were investigated via wind tunnel tests of a full bridge aeroelastic model at a geometric scale of 1:211. The tests were conducted in both smooth wind and simulated boundary layer wind fields. Emphasis is placed on studying the interference effect of adjacent span via installing a wind deflector and a wind separating board to shelter one span of the bridge model from incoming flow. Issues related to effects of mid-tower stiffness and deck supporting conditions are also discussed. The testing results show that flutter critical wind velocities in smooth flow, with a wind deflector, are remarkably lower than those without. In turbulent wind, torsional and vertical standard deviations for the deck responses at midspan in testing cases without wind deflector are generally less than those at the midspan exposed to wind in testing cases with wind deflector, respectively. When double main spans are exposed to turbulent wind, the existence of either span is a mass damper to the other. Furthermore, both effects of mid-tower stiffness and deck supporting conditions at the middle tower on the flutter and buffeting performances of the Maanshan Bridge are unremarkable.

키워드

과제정보

연구 과제 주관 기관 : NSFC, Natural Science Foundation of Jiangsu Province

참고문헌

  1. Boonyapinyo, V., Lauhatanon, Y. and Lukkunaprasit, P. (2006), "Nonlinear aerostatic stability analysis of suspension bridges", Eng. Struct., 28(5), 793-803. https://doi.org/10.1016/j.engstruct.2005.10.008
  2. Chen, X.Z., Kareem, A. and Matsumoto, M. (2001), "Multimode coupled flutter and buffeting analysis of long span bridges", J. Wind Eng. Indust. Aerodyn., 89(7), 649-664. https://doi.org/10.1016/S0167-6105(01)00064-2
  3. Davenport, A.G. (1962), "Buffeting of a suspension bridge by storm winds", J. Struct. Eng., ASCE, 88(6), 233-264.
  4. Ge, Y.J. and Tanaka, H., (2000), "Aerodynamic flutter analysis of cable-supported bridges by multi-mode and full-mode approaches", J. Wind Eng. Indust. Aerodyn., 86(2), 123-153. https://doi.org/10.1016/S0167-6105(00)00007-6
  5. Ge, Y.J. and Xiang, H.F., (2011), "Extension of bridging capacity of cable-supported bridges using double main spans or twin parallel decks solutions", Struct. Infrastruct. Eng., 7(7-8), 551-567. https://doi.org/10.1080/15732479.2010.496980
  6. Ge, Y.J. and Zhou, Z.Y. (2008), "Wind-resistant research on the Maanshan Bridge over the Yangtze Rover: full-model wind tunnel test", State Key Lab for Disaster Reduction in Civil Engineering, Tongji University.
  7. Katsuchi, H., Jones, N.P. and Scanlan, R.H. (1999), "Multimode coupled flutter and buffeting analysis of the Akashi-Kaikyo bridge", J. Struct. Eng., ASCE, 125(1), 60-70. https://doi.org/10.1061/(ASCE)0733-9445(1999)125:1(60)
  8. Larsen, S.V. and Larsen, A. (2003), "Wind-tunnel tests with the Chacao double suspension bridge", Proceedings of the 11th international conference on wind engineering, Lubbock, TX, USA.
  9. Lin, Y.K. (1979), "Motion of suspension bridges in turbulent winds", J. Eng. Mech., ASCE, 105(6), 921-932.
  10. Thorbek, L.T. and Hansen, S.O. (1998), "Coupled buffeting response of suspension bridges", J. Wind Eng. Indust. Aerodyn., 74-76, 836-847.
  11. Xu, Y.L., Sun, D.K., Ko, J.M. and Lin, J.H. (2000), "Fully coupled buffeting analysis of Tsing Ma suspension bridge", J. Wind Eng. Indust. Aerodyn., 85(1), 97-117. https://doi.org/10.1016/S0167-6105(99)00133-6
  12. Scanlan, R.H. and Gade, R.H. (1997), "Motion of suspended bridge spans under gusty wind", J. Struct. Eng., ASCE, 103(9), 1867-1883.
  13. Xiang, H.F. (1996), Chinese guideline for wind-resistant design of highway bridges, China Communications Press, Beijing, China. (in Chinese)
  14. Yamada, H. and Katsuchi, H. (2005), "Study on flutter characteristics of 4-span suspension bridge", Proceedings of the Fourth European & African Conference on Wind Engineering, Prague, Czech Republic.
  15. Yoshida, O. Okuda, M. and Moriya, T. (2004), "Structural characteristics and applicability of four-span suspension bridge", J. Bridge Eng., ASCE, 9(5), 453-463. https://doi.org/10.1061/(ASCE)1084-0702(2004)9:5(453)
  16. Zhang, W.M. and Ge, Y.J. (2014), "Flutter mode transition of a double-main-span suspension bridge in full aeroelastic model testing", J. Bridge Eng., ASCE, 19(7), 06014004. https://doi.org/10.1061/(ASCE)BE.1943-5592.0000625
  17. Zhang, W.M. and Ge, Y.J. and Levitan, M.L. (2011), "Aerodynamic flutter analysis of a new suspension bridge with double main spans", Wind Struct., 14(3), 187-208. https://doi.org/10.12989/was.2011.14.3.187
  18. Zhang, W.M., Ge, Y.J. and Levitan, M.L. (2013), "Nonlinear aerostatic stability analysis of new suspension bridges with multiple main spans", J. Brazil. Soc. Mech. Sci. Eng., 35(2), 143-151. https://doi.org/10.1007/s40430-013-0011-4
  19. Zhang, X.J. (2008), "Wind stability of three-tower suspension bridges", Wind Struct., 11(4), 341-344. https://doi.org/10.12989/was.2008.11.4.341
  20. Zhang, X.J. (2010), "Study of structural parameters on the aerodynamic stability of three-tower suspension bridge", Wind Struct., 13(5), 471-485. https://doi.org/10.12989/was.2010.13.5.471
  21. Zhu, L.D., Wang, M., Wang, D.L., Guo, Z.S. and Cao, F.C. (2007), "Flutter and buffeting performances of Third Nanjing Bridge over Yangtze River under yaw wind via aeroelastic model test", J. Wind Eng. Indust. Aerodyn., 95(9), 1579-1606. https://doi.org/10.1016/j.jweia.2007.02.019

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