Wind and Structures

  • 제34권3호
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  • Pages.313-319
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  • 2022
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  • 1226-6116(pISSN)
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  • 1598-6225(eISSN)
테크노프레스 (Techno-Press)
권호 표지
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DOI QR Code

Structural performance of an electricity tower under extreme loading using the applied element method- A case study

  • 투고 : 2021.07.26
  • 심사 : 2022.03.05
  • 발행 : 2022.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The resiliency of electricity transmission and distribution lines towards natural and man-made hazards is critical to the operation of cities and businesses. The extension of these lines throughout the country increases their risk of extreme loading conditions. This paper investigates a unique extreme loading condition of a 100-year old distribution line segment that passes across a river and got entangled with a boom of a ship. The study adopts the Applied Elements Method (AEM) for simulating 54 cases of the highly deformable structural behaviour of the tower. The most significant effects on the tower's structural integrity were found to occur when applying the load with components in all three of the cartesian directions (i.e., X, Y and Z) with the full capacities of the four cables. The studied extreme loading condition was determined to be within the tower's structural capacity, attributed to the shear failure of the anchor bolts, which acted as a sacrificing element that fails to protect the transfer of tensioning load to the supporting tower.

키워드

참고문헌

  1. AtlantaElectrician (2017), What Is Electrical Arcing and Why Is It Dangerous?, Atlanta Electrician.
  2. CBC New (2018), OPP Charge Man with Impaired Driving after Shuniah Collision, CBC News.
  3. El Damatty, A.A. and Hamada, A. (2016), "F2 tornado velocity profiles critical for transmission line structures", Eng. Struct., 106, 436-449. https://doi.org/10.1016/j.engstruct.2015.10.020.
  4. Eslamlou, S.D. and Behrouz, A. (2017), "Determining critical areas of transmission towers due to sudden removal of members", Case Studies Eng. Fail. Anal., 9, 138-147. https://doi.org/10.1016/j.csefa.2015.09.005.
  5. Gohel, V., Patel, P.V. and Joshi, D. (2013), "Analysis of frame using applied element method (AEM)", Procedia Eng., 51, 176-183. https://doi.org/10.1016/j.proeng.2013.01.026.
  6. Grunwald, C., Khalil, A.A., Schaufelberger, B., Ricciardi, E.M., Pellecchia, C., De Iuliis, E. and Riedel, W. (2018), "Reliability of collapse simulation - comparing finite and applied element method at different levels", Eng. Struct., 176 (January), 265-278. https://doi.org/10.1016/j.engstruct.2018.08.068.
  7. Kalvapalle, R. (2018), Ottawa Residents Could be Without Power for Days after Tornado Devastates Hydro One station, Global News.
  8. Kikuchi, A., Kawai, T. and Suzuki, N. (1992), "The rigid bodies - spring models and their applications to three-dimensional crack problems", Comput. Struct., 44(1-2), 469-480. https://doi.org/10.1016/0045-7949(92)90269-6.
  9. Law, T. (2019), Pilot Walks Away Uninjured After Plane Gets Caught Upside Down in Power Lines, Time.
  10. Mardfekri, M. and Gardoni, P. (2013), Seismic Risk Analysis of Wind Turbine Support Structures, Handbook of Seismic Risk Analysis and Management of Civil Infrastructure Systems, 716-738.
  11. McClure, D.D. and Zaghi, A.E. (2012), "Vulnerability of lattice towers to blast induced damage scenarios", In Electrical Transmission and Substation Structures 2012: Solutions to Building the Grid of Tomorrow.
  12. Meguro, K. and Tagel-Din, H. (1997), "A new efficient technique for fracture analysis of structures", Bull. Earthq. Resistant Struct. Res. Center, IIS, Univ. of Tokyo.
  13. Meguro, K. and Tagel-Din, H. (2000), "Applied element method for structural analysis: Theory and application for linear materials", Struct. Eng. Earthq. Eng., 17 (1).
  14. Meguro, K. and Tagel-Din, H. (2000), "Simulation of buckling behaviour "of elastic structures by applied element method", Simulation, 500. 15
  15. Natural Resources Canada (2014), Canada's Electric Reliability Framework.
  16. Tagel-Din, H. and Meguro, K. (2000), "Nonlinear simulation of RC structures using applied element method", Struct. Eng. Earthq. Eng., 17(2), 137-148. https://doi.org/10.2208/jscej.2000.654_13.
  17. Tian, L., Pan, H. Ma, R., Zhang, L. and Liu, Z. (2019), "Full-scale test and numerical failure analysis of a latticed steel tubular transmission tower", Eng. Struct., 109919. https://doi.org/10.1016/j.engstruct.2019.109919.
  18. Tlemat, H., Pilakoutas, K. and Neocleous, K. (2006), "Modelling of SFRC using inverse finite element analysis", Mater. Struct., 39(2), 221-233. https://doi.org/10.1617/s11527-005-9010-y.