Wind and Structures

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Investigation on flutter stability of three-tower suspension bridges under skew wind

  • Xinjun Zhang (College of Civil Engineering, Zhejiang University of Technology) ;
  • Xuan-Rui Pan (College of Civil Engineering, Zhejiang University of Technology) ;
  • Yuhan Leng (College of Civil Engineering, Zhejiang University of Technology) ;
  • Bingze Chen (College of Civil Engineering, Zhejiang University of Technology)
  • Received : 2023.08.09
  • Accepted : 2023.09.24
  • Published : 2024.01.25
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Abstract

To ensure the flutter stability of three-tower suspension bridges under skew wind, by using the computational procedure of 3D refined flutter analysis of long-span bridges under skew wind, in which structural nonlinearity, the static wind action(also known as the aerostatic effect) and the full-mode coupling effect etc., are fully considered, the flutter stability of a three-tower suspension bridge-the Taizhou Bridge over the Yangtze River in completion and during the deck erection is numerically investigated under the constant uniform skew wind, and the influences of skew wind and aerostatic effects on the flutter stability of the bridge under the service and construction conditions are assessed. The results show that the flutter critical wind speeds of three-tower suspension bridge under service and construction conditions fluctuate with the increase of wind yaw angle instead of a monotonous cosine rule as the decomposition method proposed, and reach the minimum mostly in the case of skew wind. Both the skew wind and aerostatic effects significantly reduce the flutter stability of three-tower suspension bridge under the service and construction conditions, and the combined skew wind and aerostatic effects further deteriorate the flutter stability. Both the skew wind and aerostatic effects do not change the evolution of flutter stability of the bridge during the deck erection, and compared to the service condition, they lead to a greater decrease of flutter critical wind speed of the bridge during deck erection, and the influence of the combined skew wind and aerostatic effects is more prominent. Therefore, the skew wind and aerostatic effects must be considered accurately in the flutter analysis of three-tower suspension bridges.

Keywords

Acknowledgement

The authors gratefully acknowledge the financial support for this research provided by Natural Science Foundation of Zhejiang Province (Grant No. LGF22E080018).

References

  1. Cao, H.Y., Qian, X.D., Zhou, Y.L., Chen, Z.J. and Zhu, H.P. (2018), "Feasible range for midtower lateral stiffness in three-tower suspension bridges", J. Bridge Eng., 23(3), 06017009.1-06017009.8. https://doi.org/10.1061/(asce)be.1943-5592.0001196. 
  2. Chen, A.R. and Wang, D.L. (2007), "Research on wind-resistant performance of triple-pylon suspension bridge project of Taizhou Changjiang River Highway Bridge", Research Report, State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji Univ., Shanghai, China. (in Chinese) 
  3. Gimsing, N.J. and Georgakis, C.T. (2012), Cable-Supported Bridges-Concept & Design, John Wiley & Sons Ltd, Chichester, West Sussex, United Kingdom. https://doi.org/10.1002/9781119978237. 
  4. Li, C.C., Chen, A.R. and Ma, R.J. (2012), "Flutter stability and management strategy for the deck of Taizhou Bridge during construction stage", China Eng. Sci., 12(8), 46-50. https://doi.org/10.3969/j.issn.1009-1742.2012.05.010. 
  5. Li, H.N, Zheng, X.W. and Li, C. (2019), "Copula-based joint distribution analysis of wind speed and direction", J. Eng. Mech., 145(5), 04019024. https://doi.org/10.1061/(asce)em.1943-7889.0001600. 
  6. Ruan, J. and Ma, R.J. (2010), "Dynamic behavior analysis of Taizhou Bridge", China Eng. Sci., 12(8), 83-87. https://doi.org/10.3969/j.issn.1009-1742.2010.08.010. 
  7. Scanlan, R.H. (1999) Estimates of skew wind speeds for bridge flutter. J. Bridge Eng., 4(2), 95-98. https://doi.org/10.1061/(ASCE)1084-0702(1999)4:2(95). 
  8. Thai, H.T. and Choi, D.H. (2013), "Advanced analysis of multispan suspension bridges", J. Constructional Steel Res., 90, 29-41. https://doi.org/10.1016/j.jcsr.2013.07.015. 
  9. Wang, H., Guo, T., Tao, T.Y. and Li, A.Q. (2016), "Study on wind characteristics of Runyang suspension bridge based on long-term monitored data", Int. J. Struct. Stab. Dyn., 16(4), 1640019. https://doi.org/10.1142/s0219455416400198. 
  10. Wang, H., Tao, T.Y., Zhou R., Hua, X.G. and Kareem, A. (2014), "Parameter sensitivity study on flutter stability of a long-span triple-tower suspension bridge", J. Wind Eng. Ind. Aerod., 128, 12-21. https://doi.org/10.1016/j.jweia.2014.03.004. 
  11. Xu X.Y., Li, Y.L., Liao, H.L. and Ren, S. (2017), "Flutter optimization of a double-deck truss-stiffened girder three-tower suspension bridge by wind tunnel tests", Eng. Mech., 34(5), 142-147. https://doi.org/10.6052/j.issn.1000-4750.2015.12.0953. 
  12. Xu, Y.L. (2013), Wind Effects on Cable-Supported Bridges, John Wiley & Sons Singapore Pte. Ltd., Singapore. https://doi.org/10.1002/9781118188293. 
  13. Yoshida, O., Okuda, M. and Moriya, T. (2004), "Structural characteristics and applicability of four-span suspension bridge", J. Bridge Eng., 9(5), 453-463. https://doi.org/10.1061/(ASCE)1084-0702(2004)9:5(453). 
  14. Zhang, W. M., Wang, Z.W. and Liu, Z. (2020). "Joint distribution of wind speed, wind direction, and air temperature actions on long-span bridges derived via trivariate metaelliptical and plackett copulas",J. Bridge Eng., 25(9), 04020069. https://doi.org/10.1061/(asce)be.1943-5592.0001608. 
  15. Zhang, W.M., Wang, Z.W., Zhang, H.Q, Lu X.F. and Liu, Z. (2020), "Analytical study on free vertical and torsional vibrations of two-and three-pylon suspension bridges via d'Alembert's principle", Struct. Eng. Mech., 76(3), 293-310. https://doi.org/10.12989/sem.2020.76.3.293. 
  16. Zhang, W.M. and Ge, Y.J. (2017), "Wind tunnel investigation on flutter and buffeting of a three-tower suspension bridge", Wind Struct., 24(4), 367-384. https://doi.org/10.12989/was.2017.24.4.367. 
  17. Zhang, W.M., Qian, K.R., Wang, L. and Ge, Y.J. (2019), "Aerostatic instability mode analysis of three-tower suspension bridges via strain energy and dynamic characteristics", Wind Struct., 29(3), 163-175. https://doi.org/10.12989/was.2019.29.3.163. 
  18. Zhang, W.M., Yang, C.Y., Wang, Z.W. and Liu, Z. (2019), "An analytical algorithm for reasonable central tower stiffness in the three-tower suspension bridge with unequal-length main spans", Eng. Struct., 199, 109595-109595. https://doi.org/10.1016/j.engstruct.2019.109595. 
  19. 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. 
  20. Zhang, X.J., He, Z.C., Zhou, N. and Hu, K. (2022), "Deck Erection Schemes for Improving Flutter Performance of Suspension Bridges during Erection Under Normal and Skew Winds", J. Bridge Eng., 27(11), 04022105. https://doi.org/10.1061/(ASCE)BE.1943-5592.0001957. 
  21. Zhang, X.J., Ying, F.B. and Sun, L.L. (2021), "Flutter analysis of long-span suspension bridges considering yaw wind and aerostatic effects", Int. J. Struct. Stab. Dyn., 21(13), 2150191. https://doi.org/10.1142/S0219455421501911. 
  22. Zhang, X.J., Ying, F.B., Zhao, C.Y. and Pan, X.R. (2023), "Flutter stability of a long-span suspension bridge during erection under skew wind", Wind Struct., 37(1), 39-56. https://doi.org/10.12989/was.2023.37.1.039. 
  23. Zhu, L.D. and Wang, D.L. (2003), "Analysis and wind tunnel study on wind-resistant performance of the main bridge of the third Nanjing Bridge over Yangtze River-part III: wind tunnel test of sectional model", Research Report, State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai, China. (in Chinese) 
  24. Zhu, L.D. (2002), "Buffeting response of long span cable-supported bridges under skew wind: field measurement and analysis", Ph. D. Dissertation, The Hong Kong Polytechnic University, Hong Kong. 
  25. Zhu, L.D., Tan, X., Guo, Z.S. and Ding, Q.S. (2019), "Effects of central stabilizing barriers on flutter performances of a suspension bridge with a truss-stiffened deck under skew winds", Adv. Struct. Eng., 22(1), 17-29. https://doi.org/10.1177/1369433218774144. 
  26. Zhu, L.D., Xu, Y.L., Guo, Z.S., Chang, G.Z. and Tan, X. (2013), "Yaw wind effect on flutter instability of four typical bridge decks", Wind Struct., 17(3), 317-343. https://doi.org/10.12989/was.2013.17.3.317.