Comparison of Retrofits for Three Strut-Arm Tainter Gates Using a Longevity Corrosion Maintenance Factor
Publication: Practice Periodical on Structural Design and Construction
Volume 19, Issue 4
Abstract
This paper presents a methodology to compare various Tainter gate strut-arm retrofit techniques based on the longevity corrosion maintenance (LCM) factor. The rating system is designed to encourage agencies to select retrofits that will better upgrade existing conditions to meet current design standards for hydraulic steel structures and achieve a long design life. An overview of past Tainter gate failures, governing strut-arm load cases, past strut-arm retrofit strategies, current design standards for hydraulic steel structures, and the consequences of welding or bolting to existing structures has been considered in this study as evidence to support the proposed Tainter gate retrofit comparison methodology. An example problem illustrates how to determine the LCM factor and assign a LCM grade for three retrofit scenarios.
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Acknowledgments
The author thanks Travis Adams, P.E., of the U.S. Army COE for his encouragement and review of this paper.
Disclaimer
The views expressed are those of the author and do not necessarily represent those of the U.S. Army COE.
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© 2014 American Society of Civil Engineers.
History
Received: Apr 30, 2013
Accepted: Nov 25, 2013
Published online: Nov 27, 2013
Discussion open until: Aug 3, 2014
Published in print: Nov 1, 2014
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