Wind and Structures

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Flutter stability of a long-span suspension bridge during erection

  • Han, Yan (School of Civil Engineering and Architecture, Changsha University of Science & Technology) ;
  • Liu, Shuqian (School of Civil Engineering and Architecture, Changsha University of Science & Technology) ;
  • Cai, C.S. (School of Civil Engineering and Architecture, Changsha University of Science & Technology) ;
  • Li, Chunguang (School of Civil Engineering and Architecture, Changsha University of Science & Technology)
  • Received : 2014.12.06
  • Accepted : 2015.04.20
  • Published : 2015.07.25
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Abstract

The flutter stability of long-span suspension bridges during erection can be more problematic and more susceptible to be influenced by many factors than in the final state. As described in this paper, numerical flutter stability analyses were performed for the construction process of Zhongdu Bridge over Yangtze River using the commercial FE package ANSYS. The effect of the initial wind attack angle, the sequence of deck erection, the stiffness reduction of stiffening girders, the structural damping, and the cross cables are discussed in detail. It was found that the non-symmetrical sequence of deck erection was confirmed to be aerodynamically favourable for the deck erection of long-span suspension bridges and the best erection sequence should be investigated in the design phase. While the initial wind attack angle of $-3^{\circ}$ is advantageous for the aerodynamic stability, $+3^{\circ}$ is disadvantageous compared with the initial wind attack angle of $0^{\circ}$ during the deck erection. The stiffness reduction of the stiffening girders has a slight effect on the flutter wind speed of the suspension bridge during erection, but structural damping has a great impact on it, especially for the early erection stages.

Keywords

Acknowledgement

Supported by : National Science Foundation of China

References

  1. Brancaleoni, F. and Brotton, D.M. (1981), "Analysis and prevention of suspension bridge flutter in construction", Earthq. Eng. Struct. D., 9, 489-500. https://doi.org/10.1002/eqe.4290090507
  2. Brancaleoni, F. (1992), "The construction phase and its aerodynamic issues", Aerodynamics of Large Bridges, Balkema, Rotterdam, FL, 147-158.
  3. Cai, C.S., Albrecht, P. and Bosch, H.R. (1999a), "Flutter and buffeting analysis: finite element and RPE solution", J. Bridge Eng. - ASCE, 4(3), 174-180. https://doi.org/10.1061/(ASCE)1084-0702(1999)4:3(174)
  4. Cai, C.S., Albrecht, P. and Bosch, H.R. (1999b), "Flutter and buffeting analysis: Luling and Dear Isle bridges", J. Bridge Eng. - ASCE, 4(3), 181-188. https://doi.org/10.1061/(ASCE)1084-0702(1999)4:3(181)
  5. Chen Z.Q. and Han Y. (2007), "Study of the influence of aerodynamic force matrix and flutter derivatives on critical flutter state", China J. Highway and Transport, 20(2), 51-56. (In Chinese)
  6. Chen, Z.Q., Han, Y., Hua, X.G. and Luo, Y.Z. (2009), "Investigation on influence factors of buffeting response of bridges and its aeroelastic model verification for Xiaoguan Bridge", Eng. Struct., 31, 417-431. https://doi.org/10.1016/j.engstruct.2008.08.016
  7. Chen, Z.Q. (2013), Wind-resistant research report of Zhongdu Bridge over Yangtse River, Research Report of Hunan University, Changsha.
  8. Cobo del Arco, D. and Aparicio, A.C. (2001), "Improving the wind stability of suspension bridges during construction", J. Struct. Eng.- ASCE, 127(8), 869-875. https://doi.org/10.1061/(ASCE)0733-9445(2001)127:8(869)
  9. Ernst, H.J. (1965), "Der E-Modul von Seilen unter Berücksichtigung des Durchhangers", Der Bauing, 40(2), 52-55 (in German).
  10. Ge, Y.J. and Tanaka, H. (2000), "Aerodynamic stability of long-span suspension bridges under erection", J. Struct. Eng.- ASCE, 126(12), 1404-1412. https://doi.org/10.1061/(ASCE)0733-9445(2000)126:12(1404)
  11. Hua, X.G., Chen, Z.Q., Ni, Y.Q. and Ko, J.M. (2007), "Flutter analysis of long-span bridges using ANSYS", Wind Struct., 10(1), 61-82. https://doi.org/10.12989/was.2007.10.1.061
  12. Han Y. (2007), Study on complex aerodynamic admittance functions and refined analysis of buffeting response of bridges, Ph.D. thesis. China: Hunan University.
  13. Jain, A., Jones, N.P. and Scanlan, R.H. (1996), "Coupled flutter and buffeting analysis of long-span bridges", J. Struct. Eng. - ASCE, 122, 716-725. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:7(716)
  14. Larsen, A. (1993), "Aerodynamic aspects of the final design of the 1624m suspension bridge across the Great Belt", J. Wind Eng. Ind. Aerod., Amsterdam, 48, 261-285. https://doi.org/10.1016/0167-6105(93)90141-A
  15. Larsen, A. (1995), "Prediction of aeroelastic stability of suspension bridges during erection", Proceedings of the 9th Int. Conf. on Wind Engrg., New Delhi, India.
  16. Li, Y.L., Hou, G.Y., Li, C.J. and Qiang, S.Z. (2012), "Flutter stability of a super-long-span suspension bridge with CFRP main cables during erection", J. Vib. Shock, 31(21), 15-21. (in Chinese)
  17. Li, Y.L., Hou, G.Y., Cao, P.H. and Wang, T. (2010). "Finite element simulation of temporary connection between stiffening girder segments during erection for long-span suspension bridges", Sciencepaper Online, 5(7), 529-534.
  18. Namini, A.H. (1991), "Analytical modeling of flutter derivatives as finite elements", Comput. Struct., 41, 1055-1064. https://doi.org/10.1016/0045-7949(91)90300-B
  19. Scanlan, R.H. (1978), "Action of flexible bridges under wind, I: flutter theory", J. Sound Vib., 60(2), 187-199. https://doi.org/10.1016/S0022-460X(78)80028-5
  20. Tanaka, H., Damsgaard, A., Reino, P., Franck, N. and Madsen, B.S. (1996), "Aerodynamic stability of a suspension bridge with a partially constructed bridge deck", Proceedings of the 15th Int. Assn. (association) of Bridge and Struct. Engrs. Congr. Rep., IABSE, Zurich.
  21. Tanaka, H. and Gimsing, N.J. (1999), "Aerodynamic stability of non-symmetrically erected suspension bridge girders", J. Wind Eng. Ind. Aerod., 80, 85-104. https://doi.org/10.1016/S0167-6105(98)00197-4
  22. Yoneda, M., Ohno, K. and Tamaki, Y. (1998), "Best cross stay location for super long span suspension bridge", http://dx.doi.org/10.5169/seals-59919.
  23. Zhang, X.J. (2004), "Investigation on aerodynamic stability of long-span suspension bridges under erection", J. Wind Eng. Ind. Aerod., 92, 1-8. https://doi.org/10.1016/j.jweia.2003.08.005

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