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The Evolution of Dynamic Gust Response Factors for Guyed Towers

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Abstract:

Conventional static analysis methods for guyed towers are known to underestimate critical load effects by wind turbulence. Despite the resulting potential for unsafe designs, more rigorous dynamic analyses are not routinely employed due to their greater difficulty. A simplified analysis method is therefore described that accurately predicts the dynamic response of guyed towers to turbulent winds. Based on well defined dynamic characteristics of guyed towers, the method employs a series of static "patch loads" and scaling factors to model the effects of wind acting on the tower. Calibration studies have demonstrated the reliability of this patch load method or a wide range of guyed towers.

Keywords: Dynamic analysis; Gust factor method; Guyed towers; Patch loads; Wind turbulence

Document Type: Research Article

DOI: http://dx.doi.org/10.2749/101686698780489694

Publication date: February 1, 1998

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    Structural Engineering International (SEI), the quarterly Journal of IABSE, published since 1991, is the leading international journal of structural engineering dealing with all types of structures and materials. SEI offers its readers a unique blend of short profiles on recent structures, and longer, in-depth technical articles on research, development, design, construction and maintenance. Articles are written by practicing engineers and academia from around the world and reflect the high standards of IABSE. IABSE Peer Review stamps are given to papers that have passed through a highly selective review process and demonstrate a significant contribution to the state of structural engineering knowledge.To recognise contributions of the highest quality, an Outstanding Paper Award is presented each year.

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