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Aerodynamic shape optimization emphasizing static stability for a super-long-span cable-stayed bridge with a central-slotted box deck

  • Ledong, Zhu (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University) ;
  • Cheng, Qian (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University) ;
  • Yikai, Shen (Shanghai Research Institute of Building Sciences) ;
  • Qing, Zhu (State Key Laboratory of Disaster Reduction in Civil Engineering, Tongji University)
  • 투고 : 2021.03.18
  • 심사 : 2022.09.22
  • 발행 : 2022.11.25

초록

As central-slotted box decks usually have excellent flutter performance, studies on this type of deck mostly focus on the vortex-induced vibration (VIV) control. Yet with the increasing span lengths, cable-supported bridges may have critical wind speeds of wind-induced static instability lower than that of the flutter. This is especially likely for bridges with a central-slotted box deck. As a result, the overall aerodynamic performance of such a bridge will depend on its wind-induced static stability. Taking a 1400 m-main-span cable-stayed bridge as an example, this study investigates the influence of a series of deck shape parameters on both static and flutter instabilities. Some crucial shape parameters, like the height ratio of wind fairing and the angle of the inner-lower web, show opposite influences on the two kinds of instabilities. The aerodynamic shape optimization conducted for both static and flutter instabilities on the deck based on parameter-sensitivity studies raises the static critical wind speed by about 10%, and the overall critical wind speed by about 8%. Effective VIV countermeasures for this type of bridge deck have also been proposed.

키워드

과제정보

The work described in this paper was jointly supported by the National Natural Science Foundation of China (Grant 51938012) and the Fundamental Research Fund for State Key Laboratories from the Ministry of Science and Technology of China (SLDRCE19-A-15), for which the authors are very grateful. The authors also would like to express their appreciation to Prof. Rucheng Xiao, Dr. Bin Sun and their graduate students, Ms Cong Wang from the Department of Bridge Engineering of Tongji University, for the preliminary design of the super-long cable-stayed bridges investigated in this study.

참고문헌

  1. Boonyapinyo, V., Yamada, H. and Miyata, T. (1994), "Windinduced nonlinear lateral-torsional buckling of cable-stayed bridges", J. Struct. Eng. - ASCE, 120(2), 486-506. https://ascelibrary.org/doi/10.1061/(ASCE)0733445(1994)120:2(486).
  2. Cheng, J., Jiang, J.J., Xiao, R.C. and Xiang, H.F. (2002), "Advanced aerostatic stability analysis of cable-stayed bridges using finite-element method", Comput. Struct., 80(13), 1145-158. https://doi.org/10.1016/S0045-7949(02)00079-2.
  3. Dragomirescu, E., Wang, Z.D. and Hoftyzer, M.S. (2016), "Aerodynamic characteristics investigation of Megane multibox bridge deck by CFD-LES simulations and experimental tests", Wind Struct., 22(2), 161-184. https://doi.org/10.12989/was.2016.22.2.161
  4. Gimsing, N.J., Georgakis, C.T. (2012), Cable Supported Bridges: Concept and Design (3rd Ed.), John Wiley & Sons, New York, N.Y.
  5. Hirai, A., Okauchi, I., Ito, M. and Miyata, T. (1967), "Studies on the critical wind velocity for suspension bridges", Proceeding of the International Research Seminar on Wind Effects on Buildings and Structures, Ontario, Canada,
  6. Hu, C.X., Zhou, Z.Y. and Jiang, B.S. (2019), "Effects of types of bridge decks on competitive relationships between aerostatic and flutter stability for a super long cable-stayed bridge", Wind Struct., 28(4), 255-270. https://doi.org/10.12989/was.2019.28.4.255.
  7. 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.2019.28.4.255.
  8. Jiang, B., Zhou, Z., Yan, K. and Hu, C. (2019), "Aerodynamic Performance of Bridge with Typical Box Girder Sections at Different Web Inclinations", J. Tongji Univ.. Natural Sci., 47(8), 1106-1114(in Chinese).
  9. Kien, P.H., Yamada, H., Katsuchi, H. and Sasaki, E. (2007), "Study on wind-induced instability of Super Long-Span CableStayed Bridge", J. Struct. Eng. A, 53, 650-657.
  10. Larsen, A. (1993), "Aerodynamic aspects of the final design of the 1624 m suspension bridge across the Great Belt", J. Wind Eng. Ind. Aerod., 48(2-3), 261-285. https://doi.org/10.1016/0167-6105(93)90141-A.
  11. Larsen, A. and Astiz, M.A. (1998), "Aeroelastic consideration for the Gibraltar Bridge feasibility study", Bridge Aerodynamics. Rotterdam: Balkema, 165-173.
  12. Larsen, A., Savage, M., Lafreniere, A., Hui, M. and Larsen, S.V. (2008), "Investigation of vortex response of a twin box bridge section at high and low Reynolds numbers", J. Wind Eng. Ind. Aerod., 96(6-7), 934-944. https://doi.org/10.1016/j.jweia.2007.06.020.
  13. Li, H., Laima, S., Ou, J., Zhao, X., Zhou, W., Yu, Y., Li, N. and Liu, Z. (2011), "Investigation of vortex-induced vibration of a suspension bridge with two separated steel box girders based on field measurements", Eng. Struct., 33(6), 1894-1907. https://doi.org/10.1016/j.engstruct.2011.02.017.
  14. Li, Z.G., Zhou, Q., Liao, H.L. and Ma, C.M. (2018), "Numerical studies of the suppression of vortex-induced vibrations of twin box girders by central grids", Wind Struct., 26(5), 305-315. https://doi.org/10.12989/was.2018.26.5.305.
  15. Liu, S., Zhao, L., Fang, G., Hu, C. and Ge, Y. (2021), "Investigation on aerodynamic force nonlinear evolution for a central-slotted box girder under torsional vortex-induced vibration", J. Fluid. Struct., 106. https://doi.org/10.1016/j.jfluidstructs.2021.103380.
  16. Nagai, M., Fujino, Y., Yamaguchi, H. and Iwasaki, E. (2004), "Feasibility of a 1,400 m span steel cable-stayed bridge", J. Bridge Eng., 9(5), 444-452. https://doi.org/10.1061/(ASCE)1084-0702(2004)9:5(444)
  17. Qian, C., Zhu, L., Zhu, Q., Ding, Q. and Yan, L. (2022), "Pattern and mechanism of wind-induced static instability of super-longspan cable-stayed bridge under large deformation", J. Wind Eng. Ind. Aerod., 221, 104910. https://doi.org/10.1016/j.jweia.2022.104910.
  18. Sato, H., Hirahara, N., Fumoto, K., Hirano, S. and Kusuhara, S. (2002), "Full aeroelastic model test of a super long-span bridge with slotted box girder". J. Wind Eng. Ind. Aerod., 90(12), 2023-2032. https://doi.org/10.1016/S0167-6105(02)00318-5.
  19. Sato, H., Kusuhara, S., Ogi, K. and Matsufuji, H. (2000), "Aerodynamic characteristics of super long-span bridges with slotted box girder", J. Wind Eng. Ind. Aerod., 88(2-3), 297-306. https://doi.org/10.1016/s0167-6105(00)00055-6.
  20. Yang, Y., Ge, Y. and Xiang, H. (2007), "Flutter control effect and mechanism of central-slotting for long-span bridges", Frontiers of Architecture and Civil Engineering in China, 1(3), 298-304. https://doi.org/10.1007/s11709-007-0039-6
  21. Yang, Y., Zhang, L., Ding, Q. and Ge, Y. (2018), "Flutter performance and improvement for a suspension bridge with central-slotted box girder during erection", J. Wind Eng. Ind. Aerod., 179, 118-124. https://doi.org/10.1016/j.jweia.2018.05.016.
  22. Yang, Y.X., Ma, T.T. and Ge, Y.J. (2015a), "Evaluation on bridge dynamic properties and VIV performance based on wind tunnel test and field measurement", Wind Struct., 20(6), 719-737. https://doi.org/10.12989/was.2015.20.6.719.
  23. Yang, Y.X., Zhou, R., Ge, Y.J., Mohotti, D. and Mendis, P. (2015b), "Aerodynamic instability performance of twin box girders for long-span bridges", J. Wind Eng. Ind. Aerod., 145, 196-208. https://doi.org/10.1016/j.jweia.2015.06.014.
  24. Zhang, X.J. and Sun, H.L. (2014), "Study of the aerostatic and aerodynamic stability of super long-span cable-stayed bridges", Eng. Sci., 2, 82-92. https://doi.org/10.3969/j.issn.1009-1742.2000.03.017
  25. Zhu, L.D. (2005), "Mass simulation and amplitude conversion of bridge sectional model test for vortex-excited resonance", Eng. Mech., 22(5), 6 (in Chinese).
  26. Zhu, L.D., Zhang, H.J., Guo, Z.S. and Hu, X.H. (2011), "Flutter performance and control measures of a 1400m-span cablestayed bridge scheme with steel box deck", Proceedings of the 13th International Conference on Wind Engineering, Amsterdam, The Netherlands, June.
  27. Zhu, Q., Chen, W., Zhu, L. and Cui, Y. (2019), "Flutter performance of a super-long-span cable-stayed bridge under large attack angles via wind tunnel sectional model tests", China J. Highway Transport, 32(10), 67-74 (in Chinese).