Record number :
Title of article :
Assessment of code recommendations through simulation of EPS wind loads along a segment of a transmission line
Author/Authors :
Miguel، نويسنده , , Let?´cia Fleck Fadel and Fadel Miguel، نويسنده , , Leandro Fleck and Riera، نويسنده , , Jorge Daniel and Kaminski Jr.، نويسنده , , Jo?o and Ramos de Menezes، نويسنده , , Ruy Carlos Ferreira dos Santos، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2012
Pages :
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Abstract :
Part of the uncertainty in the response of transmission line (TL) towers subjected to extended pressure system (EPS), determined as prescribed by IEC 60826, is assessed in the paper by comparing the code predictions with the dynamic response of the system subjected to numerically simulated 3 D-wind fields. In the evaluation process, model uncertainty was accounted for by considering various models for the power spectra of the fluctuating wind velocity components as well as for the correlation functions. The values obtained through the full dynamic analysis are quite similar to those determined by the code, resulting in estimation errors in the range between 5% and 10%. The influence on model uncertainty of the structural model of towers and conductors was studied by the authors in previous contributions, and completes the assessment advanced in the paper.
Keywords :
Code prescriptions , Transmission line structures , dynamic analysis , EPS wind loads , Model uncertainty
Journal title :
Engineering Structures
Link To Document :