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Aerodynamic flutter analysis of a new suspension bridge with double main spans

  • Zhang, W.M. (State Key Laboratory for Disaster Reduction in Civil Engineering, Department of Bridge Engineering, Tongji University) ;
  • Ge, Y.J. (State Key Laboratory for Disaster Reduction in Civil Engineering, Department of Bridge Engineering, Tongji University) ;
  • Levitan, M.L. (Civil and Environmental Engineering Department, Louisiana State University)
  • Received : 2010.05.13
  • Accepted : 2010.10.11
  • Published : 2011.05.25

Abstract

Based on the ANSYS, an approach of full-mode aerodynamic flutter analysis for long-span suspension bridges has been presented in this paper, in which the nonlinearities of structure, aerostatic and aerodynamic force due to the deformation under the static wind loading are fully considered. Aerostatic analysis is conducted to predict the equilibrium position of a bridge structure in the beginning, and then flutter analysis of such a deformed bridge structure is performed. A corresponding computer program is developed and used to predict the critical flutter wind velocity and the corresponding flutter frequency of a long-span suspension bridge with double main span. A time-domain analysis of the bridge is also carried out to verify the frequency-domain computational results and the effectiveness of the approach proposed in this paper. Then, the nonlinear effects on aerodynamic behaviors due to aerostatic action are discussed in detail. Finally, the results are compared with those of traditional suspension bridges with single main span. The results show that the aerostatic action has an important influence on the flutter stability of long-span suspension bridges. As for a suspension bridge with double main spans, the flutter mode is the first anti-symmetrical torsional vibration mode, which is also the first torsional vibration mode in natural mode list. Furthermore, a double main-span suspension bridge is better in structural dynamic and aerodynamic performances than a corresponding single main-span structure with the same bridging capacity.

Keywords

References

  1. Agar, T.J.A. (1989), "Aerodynamic flutter analysis of suspension bridges by a modal technique", Eng. Struct., 11(2), 75-82. https://doi.org/10.1016/0141-0296(89)90016-3
  2. Ding, Q., Chen, A. and Xiang, H. (2002), "Coupled flutter analysis of long-span bridges by multimode and fullorder approaches", J. Wind Eng. Ind. Aerod., 90(12-15), 1981-1993. https://doi.org/10.1016/S0167-6105(02)00315-X
  3. Dung, N. N., Miyata, T., Yamada, H. and Minh, N. N. (1998), "Flutter responses in long span bridges with wind induced displacement by the mode tracing method", J. Wind Eng. Ind. Aerod., 77-78, 367-379. https://doi.org/10.1016/S0167-6105(98)00157-3
  4. Ge, Y. J. and Tanaka, H. (2000), "Aerodynamic analysis of cable-supported bridge by multi-mode and full-mode approaches", J. Wind Eng. Ind. Aerod., 86(2-3), 123-153. https://doi.org/10.1016/S0167-6105(00)00007-6
  5. Ge, Y.J. and Xiang, H.F. (2008), "Bridging Capacity Innovations on Cable-Supported Bridges", Proceedings of the IABMAS Conference, Seoul, Korea.
  6. Ge, Y.J., Xu, L.S., Zhang, W.M. and Zhou, Z.Y. (2009), "Dynamic and aerodynamic characteristics of new suspension bridges with double main spans", Proceedings of the 7th Asia-Pacific Conference on Wind Engineering, Taipei, Taiwan.
  7. Hua, X.G. and Chen, Z.Q. (2008), "Full-order and multimode flutter analysis using ANSYS", Finite Elem. Anal. Des., 44(9-10), 537-551. https://doi.org/10.1016/j.finel.2008.01.011
  8. 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
  9. Jain, A., Jones, N. P. and Scanlan, R. H. (1996), "Coupled flutter and buffeting analysis of long-span bridges", J. Struct. Eng-ASCE, 122(7), 716-725. https://doi.org/10.1061/(ASCE)0733-9445(1996)122:7(716)
  10. 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)
  11. Katsuchi, H., Jones, N.P., Scanlan, R.H. and Akiyama, H. (1998), "Multi-mode flutter and buffeting analysis of the Akashi-Kaikyo bridge", J. Wind Eng. Ind. Aerod., 77-78, 431-441. https://doi.org/10.1016/S0167-6105(98)00162-7
  12. Manabu, I. (2008), "21st century super long span bridges in Japan", Documents of China-Japan Workshop on the Technologies of Large Span Bridges, 145-152.
  13. Miyata, T. and Yamada, H. (1990), "Coupled flutter estimate of a suspension bridge", J. Wind Eng. Ind. Aerod., 33(1-2), 341-348. https://doi.org/10.1016/0167-6105(90)90049-I
  14. Namini, A., Albrecht, P. and Bosch, H. (1992), "Finite element-based flutter analysis of cable-suspended bridges", J. Struct. Eng-ASCE, 118(6), 1509-1526. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:6(1509)
  15. Scanlan, R. H. (1978), "Action of flexible bridges under wind, 1: flutter theory", J. Sound Vib., 60(2), 187-199. https://doi.org/10.1016/S0022-460X(78)80028-5
  16. Tanaka, H., Yamamura, N. and Tatsumi, M. (1992), "Coupled mode flutter analysis using flutter derivatives", J. Wind Eng. Ind. Aerod., 42(1-3), 1279-1290. https://doi.org/10.1016/0167-6105(92)90135-W
  17. Zhang, X.J., Xiang, H.F. and Sun, B.N. (2002), "Nonlinear aerostatic and aerodynamic analysis of long-span suspension bridges considering wind-structure interactions", J. Wind Eng. Ind. Aerod., 90(9), 1065-1080. https://doi.org/10.1016/S0167-6105(02)00251-9

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