Wind and Structures

  • 제14권5호
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  • Pages.481-498
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  • 2011
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Behavior of self supported transmission line towers under stationary downburst loading

  • Darwish, Mohamed M. (March Consulting Associates Incorporation Saskatoon) ;
  • El Damatty, Ashraf A. (Department of Civil and Environmental Engineering, The University of Western Ontario London)
  • 투고 : 2010.08.27
  • 심사 : 2011.05.17
  • 발행 : 2011.09.25
⟨ 이전 논문 다음 논문 ⟩

초록

During the past decade, many electrical transmission tower structures have failed during downburst events. This study is a part of a research program aimed to understand the behaviour of transmission lines under such localized wind events. The present study focuses on assessing the behaviour of self supported transmission line towers under downburst loading. A parametric study is performed to determine the critical downburst configurations causing maximum axial forces for various members of a tower. The sensitivity of the internal forces developing in the tower's members to changes in the downburst size and location was studied. The structural behaviour associated with the critical downburst configurations is described and compared to the behaviour under 'normal' wind loads.

키워드

참고문헌

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피인용 문헌

  1. Dynamic response of transmission line conductors under downburst and synoptic winds vol.21, pp.2, 2015, https://doi.org/10.12989/was.2015.21.2.241
  2. Critical load cases for lattice transmission line structures subjected to downbursts: Economic implications for design of transmission lines vol.159, 2018, https://doi.org/10.1016/j.engstruct.2017.12.043
  3. Longitudinal force on transmission towers due to non-symmetric downburst conductor loads vol.127, 2016, https://doi.org/10.1016/j.engstruct.2016.08.030
  4. Thunderstorm response spectrum: Fundamentals and case study vol.143, 2015, https://doi.org/10.1016/j.jweia.2015.04.009
  5. Thunderstorm response spectrum technique: Theory and applications vol.108, 2016, https://doi.org/10.1016/j.engstruct.2015.11.012
  6. Capacity of a transmission tower under downburst wind loading vol.22, pp.1, 2016, https://doi.org/10.12989/was.2016.22.1.065
  7. Emerging issues and new frameworks for wind loading on structures in mixed climates vol.19, pp.3, 2014, https://doi.org/10.12989/was.2014.19.3.295
  8. Probabilistic framework for performance assessment of electrical power networks to tornadoes vol.1, pp.3-4, 2016, https://doi.org/10.1080/23789689.2016.1254998
  9. Review on dynamic and quasi-static buffeting response of transmission lines under synoptic and non-synoptic winds vol.112, 2016, https://doi.org/10.1016/j.engstruct.2016.01.003
  10. Aero-elastic testing of multi-spanned transmission line subjected to downbursts vol.169, 2017, https://doi.org/10.1016/j.jweia.2017.07.010
  11. Analysis of buffeting response of hinged overhead transmission conductor to nonstationary winds vol.147, 2017, https://doi.org/10.1016/j.engstruct.2017.06.009
  12. Dynamic Responses and Vibration Control of the Transmission Tower-Line System: A State-of-the-Art Review vol.2014, 2014, https://doi.org/10.1155/2014/538457
  13. Aero-elastic response of transmission line system subjected to downburst wind: Validation of numerical model using experimental data vol.27, pp.2, 2011, https://doi.org/10.12989/was.2018.27.2.071
  14. The Dynamic Effect of Downburst Winds on the Longitudinal Forces Applied to Transmission Towers vol.5, pp.None, 2011, https://doi.org/10.3389/fbuil.2019.00059
  15. Behaviour and design of guyed pre-stressed concrete poles under downbursts vol.29, pp.5, 2011, https://doi.org/10.12989/was.2019.29.5.339
  16. Thunderstorm Downbursts and Wind Loading of Structures: Progress and Prospect vol.6, pp.None, 2020, https://doi.org/10.3389/fbuil.2020.00063
  17. Towards performance-based design under thunderstorm winds: a new method for wind speed evaluation using historical records and Monte Carlo simulations vol.31, pp.2, 2020, https://doi.org/10.12989/was.2020.31.2.085
  18. Aerodynamic coefficients and pressure distribution on two circular cylinders with free end immersed in experimentally produced downburst-like outflows vol.24, pp.3, 2011, https://doi.org/10.1177/1369433220958763
  19. Parametric study of the quasi-static response of wind turbines in downburst conditions using a numerical model vol.250, pp.None, 2011, https://doi.org/10.1016/j.engstruct.2021.113440