Wind and Structures

  • 제16권3호
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  • Pages.225-240
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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 studies of cantilever traffic signal structures

  • Cruzado, Hector J. (Department of Civil and Environmental Engineering, Polytechnic University of Puerto Rico) ;
  • Letchford, Chris (Department of Civil and Environmental Engineering, Rensselaer Polytechnic Institute) ;
  • Kopp, Gregory A. (Boundary Layer Wind Tunnel Laboratory, Faculty of Engineering, University of Western Ontario London)
  • 투고 : 2011.05.12
  • 심사 : 2012.01.29
  • 발행 : 2013.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The wind-induced vibrations of the mast arm of cantilever traffic signal structures can lead to the fatigue failure of these structures. Wind tunnel tests were conducted on an aeroelastic model of this type of structure. Results of these experiments indicated that when the signals have backplates, vortex shedding causes large-amplitude vibrations that could lead to fatigue failure. Vibrations caused by galloping were only observed for one particular angle of attack with the signals having backplates. No evidence for galloping, previously thought to be the dominant cause of fatigue failures in these structures, was observed.

키워드

참고문헌

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피인용 문헌

  1. Damage avoidance solution to mitigate wind-induced fatigue in steel traffic support structures vol.138, 2017, https://doi.org/10.1016/j.jcsr.2017.06.037
  2. Fragility analysis of wind-excited traffic signal structures vol.101, 2015, https://doi.org/10.1016/j.engstruct.2015.07.044
  3. Wind-induced traffic signal structure response: Experiments and reduction via helical arm strakes vol.76, 2014, https://doi.org/10.1016/j.engstruct.2014.07.012
  4. Effectiveness of strake installation for traffic signal structure fatigue mitigation vol.1, pp.4, 2014, https://doi.org/10.12989/smm.2014.1.4.393
  5. Study of the aerodynamic damping of wing plates on traffic signal structures based on the 2D one-way FSI analysis vol.6, pp.4, 2013, https://doi.org/10.1080/24705314.2021.1902662