Wind and Structures

  • 제26권5호
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  • Pages.305-315
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  • 2018
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
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DOI QR코드

DOI QR Code

Numerical studies of the suppression of vortex-induced vibrations of twin box girders by central grids

  • Li, Zhiguo (Research Center for Wind Engineering, Southwest Jiaotong University) ;
  • Zhou, Qiang (Research Center for Wind Engineering, Southwest Jiaotong University) ;
  • Liao, Haili (Research Center for Wind Engineering, Southwest Jiaotong University) ;
  • Ma, Cunming (Research Center for Wind Engineering, Southwest Jiaotong University)
  • 투고 : 2017.09.18
  • 심사 : 2018.01.11
  • 발행 : 2018.05.25
⟨ 이전 논문 다음 논문 ⟩

초록

A numerical study based on a delayed detached eddy simulation (DDES) is conducted to investigate the aerodynamic mechanism behind the suppression of vortex-induced vibrations (VIVs) of twin box girders by central grids, which have an inhibition effect on VIVs, as evidenced by the results of section model wind tunnel tests. The mean aerodynamic force coefficients with different attack angles are compared with experimental results to validate the numerical method. Next, the flow structures around the deck and the aerodynamic forces on the deck are analyzed to enhance the understanding of the occurrence of VIVs and the suppression of VIVs by the application of central grids. The results show that shear layers are separated from the upper railings and lower overhaul track of the upstream girder and induce large-scale vortices in the gap that cause periodical lift forces of large amplitude acting on the downstream girder, resulting in VIVs of the bridge deck. However, the VIVs are apparently suppressed by the central grids because the vortices in the central gap are reduced into smaller vortices and become weaker, causing slightly fluctuating lift forces on the deck. In addition, the mean lift force on the deck is mainly caused by the upstream girder, whereas the fluctuating lift force is mainly caused by the downstream girder.

키워드

과제정보

연구 과제 주관 기관 : Natural Science Foundation of China (NSFC), Central Universities

참고문헌

  1. Alam, M.M., Moriya, M., Takai, K. and Sakamoto, H. (2003), "Fluctuating fluid forces acting on two circular cylinders in a tandem arrangement at a subcritical Reynolds number", J. Wind Eng. Ind. Aerod., 91(1), 139-154. https://doi.org/10.1016/S0167-6105(02)00341-0
  2. Chen, W.L., Li, H. and Hu, H. (2014), "An experimental study on the unsteady vortices and turbulent flow structures around twin-boxgirder bridge deck models with different gap ratios", J. Wind Eng. Ind. Aerod., 132, 27-36. https://doi.org/10.1016/j.jweia.2014.06.015
  3. Chen, Z.Q., Niu, H.W. and Li, C.G. (2007), "Experimental study on wind-induced vortex shedding of parallel box-girder bridge", J. Hunan University (Natural Sciences). 9 005.
  4. de Miranda, S., Patruno, L., Ricci, M. and Ubertini, F. (2015), "Numerical study of a twin box bridge deck with increasing gap ratio by using RANS and LES approaches", Eng. Struct., 99, 546-558. https://doi.org/10.1016/j.engstruct.2015.05.017
  5. Ge, Y.J. and Xiang, H.F. (2008), "Bluff body aerodynamics application in challenging bridge span length", Proceedings of 6th International Colloquium on Bluff Bodies Aerodynamics and Applications, July.
  6. Hua, X., Chen, Z., Chen, W., Niu, H. and Huang, Z. (2015), "Investigation on the effect of vibration frequency on vortexinduced vibrations by section model tests", Wind Struct., 20(2), 349-361. https://doi.org/10.12989/was.2015.20.2.349
  7. Hui, M.C., Ding, Q. and Xu, Y. (2006), "Flutter analysis of Stonecutters Bridge", Wind Struct., 9(2), 125-146. https://doi.org/10.12989/was.2006.9.2.125
  8. Kargarmoakhar, R., Chowdhury, A.G. and Irwin, P.A. (2015), "Reynolds number effects on twin box girder long span bridge aerodynamics", Wind Struct., 20(2), 327-347. https://doi.org/10.12989/was.2015.20.2.327
  9. Kwok, K.C., Qin, X.R., Fok, C. and Hitchcock, P.A. (2012), "Windinduced pressures around a sectional twin-deck bridge model: Effects of gap-width on the aerodynamic forces and vortex shedding mechanisms", J. Wind Eng. Ind. Aerod., 110, 50-61. https://doi.org/10.1016/j.jweia.2012.07.010
  10. Larsen, A., Savage, M., Lafreniere, A., Hui, M.C. 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), 934-944. https://doi.org/10.1016/j.jweia.2007.06.020
  11. Leonard, B. (1991), "The ULTIMATE conservative difference scheme applied to unsteady one-dimensional advection", Comput. Method, Appl. M., 88(1), 17-74. https://doi.org/10.1016/0045-7825(91)90232-U
  12. 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
  13. Matsumoto, M., Shijo, R., Eguchi, A., Hikida, T., Tamaki, H. and Mizuno, K. (2004), "On the flutter characteristics of separated two box girders", Wind struct., 7(4), 281-291. https://doi.org/10.12989/was.2004.7.4.281
  14. Matsumoto, M., Yagi, T., Tamaki, H. and Tsubota, T. (2008), "Vortexinduced vibration and its effect on torsional flutter instability in the case of B/D= 4 rectangular cylinder", J. Wind Eng. Ind. Aerod., 96(6), 971-983. https://doi.org/10.1016/j.jweia.2007.06.023
  15. Menter, F., Kuntz, M. and Langtry, R. (2003), Ten years of experience with the SST turbulence model. Turbulence Heat Mass Transfer 4, 625-632, Begell House Inc
  16. Nieto, F., Kusano, I., Hernandez, S. and Jurado, J. (2010). "CFD analysis of the vortex-shedding response of a twin-box deck cablestayed bridge", Proceedings of the 5th International Symposium on Computational Wind Engineering, Chapel Hill, NC.
  17. Ogawa, K., Shimodoi, H. and Oryu, T. (2002), "Aerodynamic characteristics of a 2-box girder section adaptable for a super-long span suspension bridge", J. Wind Eng. Ind. Aerod., 90(12), 2033-2043. https://doi.org/10.1016/S0167-6105(02)00319-7
  18. Patankar, S.V. and Spalding, D.B. (1972), "A calculation procedure for heat, mass and momentum transfer in three-dimensional parabolic flows", Int. J. Heat Mass Tran., 15(10), 1787-1806. https://doi.org/10.1016/0017-9310(72)90054-3
  19. Sohankar, A. (2008), "Large eddy simulation of flow past rectangularsection cylinders: Side ratio effects", J. Wind Eng. Ind. Aerod., 96(5), 640-655. https://doi.org/10.1016/j.jweia.2008.02.009
  20. Spalart, P., Jou, W., Strelets, M. and Allmaras, S. (1997), "Comments on the feasibility of LES for wings, and on a hybrid RANS/LES approach", Advances in DNS/LES. 14-8.
  21. Spalart, P.R., Deck, S., Shur, M., Squires, K., Strelets, M.K. and Travin, A. (2006), "A new version of detached-eddy simulation, resistant to ambiguous grid densities", Theor. Comput. Fluid Dynam., 20(3), 181-195. https://doi.org/10.1007/s00162-006-0015-0
  22. Sumner, D. (2010), "Two circular cylinders in cross-flow: a review", J. Fluid. Struct., 26(6), 849-899. https://doi.org/10.1016/j.jfluidstructs.2010.07.001
  23. Sun, D., Owen, J.S., Wright, N.G. and Liaw, K.F. (2008), "Fluid-structure interaction of prismatic line-like structures, using LES and block-iterative coupling", J. Wind Eng. Ind. Aerod., 96(6), 840-858. https://doi.org/10.1016/j.jweia.2007.06.012
  24. Trein, C.A., Shirato, H. and Matsumoto, M. (2015), "On the effects of the gap on the unsteady pressure characteristics of two-box bridge girders", Eng. Struct., 82, 121-133. https://doi.org/10.1016/j.engstruct.2014.10.036
  25. Xu, K., Ge, Y. and Zhang, D. (2015), "Wake oscillator model for assessment of vortex-induced vibration of flexible structures under wind action", J. Wind Eng. Ind. Aerod., 136, 192-200. https://doi.org/10.1016/j.jweia.2014.11.002
  26. Xu, K., Ge, Y., Zhao, L. and Du, X. (2017), "Experimental and numerical study on the dynamic stability of vortex-induced vibration of bridge decks", Int. J. Struct. Stab. Dynam., 1850033.
  27. Yang, Y. and Ge, Y. (2009), "Aerodynamic flutter control for typical girder sections of long-span cable-supported bridges", Wind Struct., 12(3), 205-217. https://doi.org/10.12989/was.2009.12.3.205
  28. Yang, Y., Zhou, R., Ge, Y. and Zhang, L. (2016), "Experimental studies on VIV performance and countermeasures for twin-box girder bridges with various slot width ratios", J. Fluid. Struct., 66, 476-489. https://doi.org/10.1016/j.jfluidstructs.2016.08.010
  29. Zhou, Y. and Alam, M.M. (2016), "Wake of two interacting circular cylinders: A review", Int. J. Heat Fluid Fl., 62, 510-537. https://doi.org/10.1016/j.ijheatfluidflow.2016.08.008
  30. Zhou, Z. and Ma, R. (2010), "Numerical simulation study of the Reynolds number effect on two bridge decks based on the deterministic vortex method", Wind Struct., 13(4), 347-362. https://doi.org/10.12989/was.2010.13.4.347
  31. Zhou, Z., Yang, T., Ding, Q. and Ge, Y. (2015), "Mechanism on suppression in vortex-induced vibration of bridge deck with long projecting slab with countermeasures", Wind Struct., 20(5), 643-660. https://doi.org/10.12989/was.2015.20.5.643

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  3. Wind-induced vibrations and suppression measures of the Hong Kong-Zhuhai-Macao Bridge vol.32, pp.3, 2018, https://doi.org/10.12989/was.2021.32.3.179
  4. Experimental and numerical study on vortex-induced vibration of a truss girder with two decks vol.24, pp.5, 2018, https://doi.org/10.1177/1369433220969026