This paper describes the nonlinear analysis technique used for the design verification of a guyed transmission tower. This tower forms part of a new transmission line which is currently under construction. The nonlinear analysis technique is briefly described and the findings from the analysis are highlighted together with the resulting modifications to the original design. The findings from the nonlinear analysis predict a catastrophic collapse of the transmission tower based on the original design. This collapse would has resulted even if a full-scale testing of the tower was used to verify the design adequacy.
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References
1.
Electric Power Research Institute, Structural Development Studies at the EPRI Transmission Line Mechanical Research Facility, EPRI EL-4756, 1986.
2.
AlbermaniF.G.A. and KitipornchaiS., Nonlinear Analysis of Thin-Walled Structures Using Least Element/Member, J. Structural Engineering, ASCE, 116 (1), pp. 215–234 (1990).
3.
AlbermaniF.G.A. and KitipornchaiS., Elasto-plastic large deformation analysis of thin-walled structures, Engng Struct., 12 (1), pp. 28–36, 1990.
4.
AlbermaniF.G.A. and KitipornchaiS., Nonlinear Finite Element Analysis of Latticed Transmission Towers, Special Issue on Transmission Line Structures, Engng Struct., 15 (4), pp. 259–270, 1993.
5.
ErnstJ.H., Der E-Modul von Seilen unter Berucksichtigung des Durchanges, Der Bauingenieur, 40 (2), 1965.
6.
AlbermaniF.G.A., KitipornchaiS. and ChanS.L., Formex Formulation of Transmission Tower Structures, Int. J. Space Structures, 7 (1), pp. 1–10, 1992.
