Wind and Structures

  • 제16권3호
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  • Pages.249-261
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  • 2013
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Wind-tunnel study of wake galloping of parallel cables on cable-stayed bridges and its suppression

  • Li, Yongle (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Wu, Mengxue (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Chen, Xinzhong (Wind Science and Engineering Research Center , Department of Civil and Environmental Engineering, Texas Tech University) ;
  • Wang, Tao (Department of Bridge Engineering, Southwest Jiaotong University) ;
  • Liao, Haili (Department of Bridge Engineering, Southwest Jiaotong University)
  • 투고 : 2011.07.27
  • 심사 : 2012.03.22
  • 발행 : 2013.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

Flexible stay cables on cable-stayed bridges are three-dimensional. They sag and flex in the complex wind environment, which is a different situation to ideal rigid cylinders in two-dimensional wind flow. Aerodynamic interference and the response characteristics of wake galloping of full-scale parallel cables are potentially different due to three-dimensional flows around cables. This study presents a comprehensive wind tunnel investigation of wake galloping of parallel stay cables using three-dimensional aeroelastic cable models. The wind tunnel study focuses on the large spacing instability range, addressing the effects of cable separation, wind yaw angle, and wind angle of attack on wake galloping response. To investigate the effectiveness of vibration suppression measures, wind tunnel studies on the transversely connected cable systems for two types of connections (flexibility and rigidity) at two positions (mid-span and quarter-span) were also conducted. This experimental study provides useful insights for better understanding the characteristics of wake galloping that will help in establishing a guideline for the wind-resistant design of the cable system on cable-stayed bridges.

키워드

참고문헌

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  3. In-plane modal frequencies and mode shapes of two stay cables interconnected by uniformly distributed cross-ties vol.417, 2018, https://doi.org/10.1016/j.jsv.2017.12.004
  4. Similitude of ice dynamics against scaling of geometry and physical parameters vol.10, pp.4, 2016, https://doi.org/10.5194/tc-10-1753-2016
  5. Parametric studies on the dynamic properties of stay cables interconnected with uniformly distributed cross-ties pp.2048-4011, 2018, https://doi.org/10.1177/1369433218786544
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  9. Wake effects of an upstream bridge on aerodynamic characteristics of a downstream bridge vol.29, pp.6, 2013, https://doi.org/10.12989/was.2019.29.6.417
  10. Wind tunnel study of wake-induced aerodynamics of parallel stay-cables and power conductor cables in a yawed flow vol.30, pp.6, 2020, https://doi.org/10.12989/was.2020.30.6.617
  11. Wake-induced vibrations of tandem flexible cable models in a wind tunnel vol.233, pp.None, 2013, https://doi.org/10.1016/j.oceaneng.2021.109188