Reliability of Overhead Transmission Lines Subjected to Wind Action

by J. D. Riera, Univ Fed Rio G Sul, Brazil,
R. C. Ramos de Menezes, Univ Fed Rio G Sul, Brazil,

Document Type: Proceeding Paper

Part of: Structural Safety and Reliability


The probability distribution of the strength of steel towers used in transmission lines, due to wind excitation, is evaluated on the basis of test results of 72 towers of various designs, fabricated in Brazil. A mathematical model is proposed to account for the variability introduced in the tower strength by the analysis, design, fabrication and erection processes.

Subject Headings: Power transmission lines | Power transmission towers | Wind engineering | Power transmission | Strength of materials | Mathematical models | Structural analysis | Structural reliability | Brazil | South America

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