Structural Analysis of Steel Transmission Towers for Large River Crossing of Overhead Transmission Lines
A Case Study in Brazil
This study aims to investigate the structural behavior of steel transmission towers used for large river crossings. Design standards usually applied to analyze these structures don’t consider situations in which the transmission towers are used in river crossings. In Brazil, due to the fact that it is necessary to cross large areas owing to the rivers’ size, these towers assume great heights. It should be noted that the towers can weigh up to 24,500kN and exceed 300m in height. The current study develops an analysis that surpasses the existing standard methodologies, aiming for a structural optimization compatible with vast crossings and new materials, aiming to resolve this design challenge regarding power transmission lines. To do this, a river crossing spanning 2,300m, situated in the northern region of Brazil, was studied based on the use of three different conductor configurations, electrically equivalent, commonly used wind design standards, and structural solutions utilizing tubular and angle profiles.
Keywords:steel transmission towers, power transmission lines, large river crossing
D. Pylarinos, "Overhead Transmission Line Easement and Right-of-Way Cases in Crete, Greece: A Statistical Analysis of 1220 Cases from 1974 to 2019," Engineering, Technology & Applied Science Research, vol. 10, no. 3, pp. 5581-5589, Jun. 2020. DOI: https://doi.org/10.48084/etasr.3591 DOI: https://doi.org/10.48084/etasr.3591
W. M. Frota, "Melhorias estruturais de suprimento para os sistemas elétricos isolados de Manaus e Macapá," T&C Amazonia, vol. 3, no. 6, pp. 23-29, 2005.
G. N. D. Boile and R. L. Nascimento, "Linhão Tucuruí-1800 km de integração regional," Revista T&D Amazonia, vol. 8, no. 18, pp. 58-62, 2010.
J. N. M. Motta, "Análise do comportamento estrutural de grandes travessias em linhas de transmissã," Ph.D. dissertation, Fluminense Federal University, Niterói, Brazil, 2015.
A. L. Silva and A. L. Sales Neto, "Desafio Amazônico - A Complexidade de Manutenção na faixa de Servidão das Linhas de Transmissão Oriximiná - Silves e Silves - Lechuga," presented at the XXIII SNPTEE, Brazil, 2015.
M. S. Rechtman, "Análise dinâmica não determinística de torres de telecomunicações submetidas à ação do vento," M.S. thesis, Fluminense Federal University, Niterói, Brazil, 2018.
A. J. G. Pinto, E. C. M. Costa, S. Kurokawa, and J. Pissolato, "Analysis of the Electrical Characteristics of an Alternative Solution for the Brazilian-Amazon Transmission System," Electric Power Components and Systems, vol. 39, no. 13, pp. 1424-1436, Aug. 2011. DOI: https://doi.org/10.1080/15325008.2011.584106 DOI: https://doi.org/10.1080/15325008.2011.584106
A. J. G. Pinto, E. C. M. Costa, S. Kurokawa, J. H. A. Monteiro, J. L. de Franco, and J. Pissolato, "Analysis of the electrical characteristics and surge protection of EHV transmission lines supported by tall towers," International Journal of Electrical Power & Energy Systems, vol. 57, pp. 358-365, May 2014. DOI: https://doi.org/10.1016/j.ijepes.2013.12.015 DOI: https://doi.org/10.1016/j.ijepes.2013.12.015
Design criteria of overhead transmission lines, IEC 60826:2017, International Electrotechnical Commission, Switzerland, 2017.
Overhead electrical lines exceeding AC 1 kV - Part 1: General requirements - Common specifications, CENELEC - EN 50341-1, CENELEC, Belgium, 2012.
C. J. Wong and M. D. Miller, Guidelines for Electrical Transmission Line Structural Loading, 3rd ed. Reston, VA: American Society of Civil Engineers, 2009. DOI: https://doi.org/10.1061/9780784410356 DOI: https://doi.org/10.1061/9780784410356
High-voltage test techniques - Part 1: General definitions and test requirements, EN 60060-1:2010, International Electrotechnical Commission, Switzerland , 2010.
C. R. Gontijo, "Contribuição à análise e projeto de torres autoportantes de linhas de transmissão," M.S. thesis, Federal University of Minas Gerais, Belo Horizonte, Brazil, 1994.
J. I. Silva Filho, L. A. M. C. Domimgues, A. A. Menezes, and A. P. Ruffier, "Assessment of Environmental Statistics as an Accessible Breakthrough to Improve Ohtls Design," in Proceedings CIGRE Session 2006, Paris, France, 2006.
G. R. Kendall, "Statistical analysis of extreme values," presented at the First Canadian Hydrology Conferenc, Canada, 1959.
B. M. Alshammari, "Probabilistic Evaluation of a Power System's Reliability and Quality Measures," Engineering, Technology & Applied Science Research, vol. 10, no. 2, pp. 5570-5575, Apr. 2020. DOI: https://doi.org/10.48084/etasr.3441 DOI: https://doi.org/10.48084/etasr.3441
S. Kurokawa, E. C. M. Costa, A. J. G. Pinto, and J. P. Filho, "Analysis of Electric Characteristics of High-Elevation Stretches of the Tucuruí-Macapá-Manaus Connection," Journal of Control, Automation and Electrical Systems, vol. 24, no. 5, pp. 714-724, Oct. 2013. DOI: https://doi.org/10.1007/s40313-013-0059-5 DOI: https://doi.org/10.1007/s40313-013-0059-5
R. M. Azevedo, J. I. Silva Filho, and V. H. G. Andrade, "Fatores de correção atmosféricos aplicados ao dimensionamento de isolamentos em ar - Nova metodologia de cálculo," presented at the XVII SNPTEE, Andrade, Brazil, Oct. 2003.
Projeto de linhas aéreas de transmissão e sub-transmissão de energia elétrica, ABNT NBR 5422:1972, ABNT - Associação Brasileira de Normas Técnicas, Brazil, 1972.
O. A. C. Amarantes, J. Zack, M. Brower, and A. L. de Sá, Atlas do Potencial Eólico Brasileiro. Brasilia, Brasil: Ministerio de Minas e Energia, 2001.
M. Marjerrison, "Electric Transmission Tower Design," Journal of the Power Division, vol. 94, no. 1, pp. 1-23, 1968.
Z. Lin, D. Zhang, G. Dai, B. Li, C. Whang, and W. Zhao, "Design, Fabrication and Erecting of the Long Span Transmission Tower for Crossing the Amazon River of 500 kV TL Tucuruí - Xingu - Jurupari - Oriximiná," presented at the 2014 Cigrè Canada Conference, Toronto, Canada, Sep. 2014.
Design of Latticed Steel Transmission Structures, ASCE 10, ASCE, Reston, VA, USA, 2015.
Projeto de Estruturas de Aço e de Estruturas Mistas de Aço e Concreto de Edifícios, NBR 8800: 2008, ABNT - Associação Brasileira de Normas Técnicas, Brazil, 2008.
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