Wind and Structures

  • 제13권4호
  • /
  • Pages.327-346
  • /
  • 2010
  • /
  • 1226-6116(pISSN)
  • /
  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Dynamic characteristics of transmission line conductors and behaviour under turbulent downburst loading

  • Darwish, Mohamed M. (Department of Civil and Environmental Engineering, The University of Western Ontario London) ;
  • El Damatty, Ashraf A. (Department of Civil and Environmental Engineering, The University of Western Ontario London) ;
  • Hangan, Horia (Boundary Layer Wind Tunnel, The University of Western Ontario London)
  • 투고 : 2009.11.13
  • 심사 : 2010.02.20
  • 발행 : 2010.07.25
⟨ 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 the assessment of the dynamic behaviour of the line conductors under downburst loading. A non-linear numerical model, accounting for large deformations and the effect of pretension loading, is developed and used to predict the natural frequencies and mode shapes of conductors at various loading stages. A turbulence signal is extracted from a set of full-scale data. It is added to the mean component of the downburst wind field previously evaluated from a CFD analysis. Dynamic analysis is performed using various downburst configurations. The study reveals that the response is affected by the background component, while the resonant component turns to be negligible due large aerodynamic damping of the conductors.

키워드

참고문헌

  1. Bathe, K.J. (1996), Finite Element Procedures in Engineering Analysis, Prentice-Hall, Englewood Cliffs, New Jersey.
  2. Bathe, K.J., Ramm, E. and Wilson, E.L. (1975), "Finite element formulations for large deformation dynamic analysis", Int. J. Numer. Meth. Eng., 9(2), 353-386. https://doi.org/10.1002/nme.1620090207
  3. Barbieri, N., de Souza, O.H. and Barbieri, R. (2004a), "Dynamical analysis of transmission line cables. Part 1 - Linear theory", Mech. Syst. Signal Pr., 18(3), 659-669. https://doi.org/10.1016/S0888-3270(02)00217-0
  4. Barbieri, N., de Souza, O.H. and Barbieri, R. (2004b), "Dynamical analysis of transmission line cables. Part 2 - Damping estimation", Mech. Syst. Signal Pr., 18(3), 671-681. https://doi.org/10.1016/S0888-3270(02)00218-2
  5. Barbieri, N., de Souza, O.H. and Barbieri, R. (2008), "Dynamical analysis of transmission line cables. Part 3- Nonlinear theory", Mech. Syst. Signal Pr., 22(4), 992-1007. https://doi.org/10.1016/j.ymssp.2007.10.002
  6. Chay, M.T., Wilson, R. and Albermani, F. (2008), "Gust occurrence in simulated non-stationary winds", J. Wind Eng. Ind. Aerod., 96(10-11), 2161–2172. https://doi.org/10.1016/j.jweia.2008.02.059
  7. Computers and structures (2006), SAP 2000 v11.01.
  8. Davenport, A.G. (1962), "Buffeting of a suspension bridge by storm winds", J. ASCE Struct. Div., 88 (3), 233-264.
  9. Fujita, T.T. (1990), "Downbursts: meteorological features and wind field characteristics", J. Wind Eng. Ind. Aerod., 36(1), 75-86. https://doi.org/10.1016/0167-6105(90)90294-M
  10. Gattulli, V., Martinelli, L., Perotti, F. and Vestroni, F. (2007), "Dynamics of suspended cables under turbulence loading: reduced models of wind field and mechanical system", J. Wind Eng. Ind. Aerod., 95(3), 183-207. https://doi.org/10.1016/j.jweia.2006.05.009
  11. Gast, K.D. (2003), A comparison of extreme wind events as sampled in the 2002 Thunderstorm Outflow Experiment, Master's Thesis, Texas Tech University, Lubbock.
  12. Gerges, R.R. and El Damatty, A.A. (2002), "Large displacement analysis of curved beams", Proceedings of the CSCE Conference, ST 100, Montreal, QC, Canada.
  13. Hangan, H. and Kim, J. (2004), "Numerical simulation of downbursts", Proceedings of the ASCE Structural Congress, Nashville, Te, USA, June.
  14. Hangan, H. and Kim, J. (2007), "Numerical simulations of impinging jets with application to downbursts", J. Wind Eng. Ind. Aerod., 95(4), 279–298. https://doi.org/10.1016/j.jweia.2006.07.002
  15. Holmes, J.D., Hangan, H.M., Schroeder, J.L., Letchford, C.W. and Orwig, K.D. (2008), "A forensic study of the Lubbock-Reese downdraft of 2002", Wind Struct., 11(2), 137-152. https://doi.org/10.12989/was.2008.11.2.137
  16. Kim, J., Hangan, H. and Ho, T.C.E. (2007), "Downburst versus boundary layer induced loads for tall buildings", Wind Struct., 10(5), 481-494. https://doi.org/10.12989/was.2007.10.5.481
  17. Koziey, B.L. and Mirza, F.A. (1994), "Consistent curved beam element", Comput. Struct., 51(6), 643-654. https://doi.org/10.1016/S0045-7949(05)80003-3
  18. Kwon, D.K. and Kareem, A. (2009), "Gust-front factor: New framework for wind load effects on structures", J. Struct. Eng.-ASCE, 135(6), 717-732. https://doi.org/10.1061/(ASCE)0733-9445(2009)135:6(717)
  19. Loredo-Souza, A.M. and Davenport, A.G. (1998), "The effects of high winds on transmission lines", J. Wind Eng. Ind. Aerod., 74-76, 987-994. https://doi.org/10.1016/S0167-6105(98)00090-7
  20. Macdonald, J.H.G. (2002), "Separation of the contributions of aerodynamic and structural damping in vibrations of inclined cables", J. Wind Eng. Ind. Aerod., 90(1), 19-39. https://doi.org/10.1016/S0167-6105(01)00110-6
  21. Mason, M.S., Wood, G.S. and Fletcher, D.F. (2009), "Numerical simulation of downburst winds", J. Wind Eng. Ind. Aerod., 97(11-12), 523–539. https://doi.org/10.1016/j.jweia.2009.07.010
  22. Manitoba Hydro Transmission and Civil Design Department (1999), Bipole 1 & 2 HVDC Transmission Line Wind Storm Failure on September 5, 1996 - Review of Emergency Response, Restoration and Design of These Lines, Manitoba Hydro, 98-L1/1-37010-06000, 54.
  23. Oakes, D. (1971), "Nelson river HVDC transmission line towers", Proceedings of the Manitoba Power Conference EHV-DC, Winnipeg, Manitoba, Canada, June.
  24. Orwig, K.D. and Schroeder, J.L. (2007), "Near-surface wind characteristics of extreme thunderstorm outflows", J. Wind Eng. Ind. Aerod., 95(7), 565-584. https://doi.org/10.1016/j.jweia.2006.12.002
  25. Shehata, A.Y., El Damatty, A.A. and Savory, E. (2005), "Finite element modelling of transmission line under downburst wind loading", Finite Elem. Anal. Des., 42(1), 71-89. https://doi.org/10.1016/j.finel.2005.05.005
  26. Shehata, A.Y. and El Damatty, A.A. (2007), "Behaviour of guyed transmission line structures under downburst wind loading", Wind Struct., 10(3), 249-268. https://doi.org/10.12989/was.2007.10.3.249
  27. Shehata, A.Y. and El Damatty, A.A. (2008), "Failure analysis of a transmission tower during a microburst", Wind Struct., 11(3), 193-208. https://doi.org/10.12989/was.2008.11.3.193
  28. Shehata, A.Y., Nassef, A.O. and El Damatty, A.A. (2008), "A coupled finite element-optimization technique to determine critical microburst parameters for transmission towers", Finite Elem. Anal. Des., 45(1), 1-12. https://doi.org/10.1016/j.finel.2008.07.008
  29. Wang, X., Lou, W., Li, H. and Chen, Y. (2009), "Wind-induced dynamic response of high-rise transmission tower under downburst wind load", J. Zhejiang Univ., 43(8), 1520-1525.

피인용 문헌

  1. Behaviour of guyed transmission line structures under tornado wind loading vol.89, pp.11-12, 2011, https://doi.org/10.1016/j.compstruc.2011.01.015
  2. 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
  3. 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
  4. 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
  5. Nonlinear inelastic responses of transmission tower-line system under downburst wind vol.123, 2016, https://doi.org/10.1016/j.engstruct.2016.05.047
  6. The response of an overhead electrical power transmission line to two types of wind forcing vol.100, pp.1, 2012, https://doi.org/10.1016/j.jweia.2011.10.005
  7. Behaviour of transmission line conductors under tornado wind vol.22, pp.3, 2016, https://doi.org/10.12989/was.2016.22.3.369
  8. Effective technique to analyze transmission line conductors under high intensity winds vol.18, pp.3, 2014, https://doi.org/10.12989/was.2014.18.3.235
  9. 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
  10. Engineering method for estimating the reactions of transmission line conductors under downburst winds vol.99, 2015, https://doi.org/10.1016/j.engstruct.2015.04.010
  11. Finite time-Lyapunov based approach for robust adaptive control of wind-induced oscillations in power transmission lines vol.371, 2016, https://doi.org/10.1016/j.jsv.2016.02.038
  12. Finite element modelling of self-supported transmission lines under tornado loading vol.18, pp.5, 2014, https://doi.org/10.12989/was.2014.18.5.473
  13. 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
  14. Critical Parameters and Configurations Affecting the Analysis and Design of Guyed Transmission Towers under Downburst Loading vol.22, pp.1, 2017, https://doi.org/10.1061/(ASCE)SC.1943-5576.0000301
  15. 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
  16. The subtle effect of integral scale on the drag of a circular cylinder in turbulent cross flow vol.15, pp.6, 2012, https://doi.org/10.12989/was.2012.15.6.463
  17. Semi-active control of forced oscillations in power transmission lines via optimum tuneable vibration absorbers: With review on linear dynamic aspects vol.87, 2014, https://doi.org/10.1016/j.ijmecsci.2014.06.006
  18. Turbulence characterization of downbursts using LES vol.136, 2015, https://doi.org/10.1016/j.jweia.2014.10.020
  19. A proposed model of the pressure field in a downburst vol.17, pp.2, 2013, https://doi.org/10.12989/was.2013.17.2.123
  20. Aero-elastic testing of multi-spanned transmission line subjected to downbursts vol.169, 2017, https://doi.org/10.1016/j.jweia.2017.07.010
  21. 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
  22. Circumferential analysis of a simulated three-dimensional downburst-producing thunderstorm outflow vol.135, 2014, https://doi.org/10.1016/j.jweia.2014.07.004
  23. Monitoring, cataloguing, and weather scenarios of thunderstorm outflows in the northern Mediterranean vol.18, pp.9, 2018, https://doi.org/10.5194/nhess-18-2309-2018
  24. Current and Future Directions for Wind Research at Western: A New Quantum Leap in Wind Research through the Wind Engineering, Energy and Environment (WindEEE) Dome vol.35, pp.4, 2010, https://doi.org/10.5359/jawe.35.277
  25. The Dynamic Effect of Downburst Winds on the Longitudinal Forces Applied to Transmission Towers vol.5, pp.None, 2010, https://doi.org/10.3389/fbuil.2019.00059
  26. Behaviour and design of guyed pre-stressed concrete poles under downbursts vol.29, pp.5, 2010, https://doi.org/10.12989/was.2019.29.5.339
  27. Thunderstorm Downbursts and Wind Loading of Structures: Progress and Prospect vol.6, pp.None, 2020, https://doi.org/10.3389/fbuil.2020.00063
  28. Aerodynamic coefficients and pressure distribution on two circular cylinders with free end immersed in experimentally produced downburst-like outflows vol.24, pp.3, 2010, https://doi.org/10.1177/1369433220958763
  29. Generating unconventional wind flow in an actively controlled multi-fan wind tunnel vol.33, pp.2, 2010, https://doi.org/10.12989/was.2021.33.2.115
  30. Progressive collapse analysis of a truss transmission tower-line system subjected to downburst loading vol.188, pp.None, 2022, https://doi.org/10.1016/j.jcsr.2021.107044