Reliability-Based Design of Transmission Towers Under Wind and Ice Loadings

by H. N. Cho, Hanyang Univ, Seoul, Republic of Korea,
S. J. Lee, Hanyang Univ, Seoul, Republic of Korea,

Document Type: Proceeding Paper

Part of: Structural Engineering in Natural Hazards Mitigation


This study suggests a practical but rational approach for the development of reliability-based LRFD criteria for transmission towers under wind and ice loadings in Korea. Based on available statistical data on wind speed and icing on transmission lines in Korea, the design wind and ice loads are obtained by Monte Carlo simulations. A set of safety provisions for the LRFD criteria are calibrated using the AFOSM and a parameter optimization technique.

Subject Headings: Ice loads | Wind loads | Power transmission towers | Load and resistance factor design | Power transmission lines | Wind power | Electric power | Structural reliability | South Korea | Asia

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