A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Updating the Reliability of Aging Miter Gates in the Presence of Corrosion and Fatigue
Miter gate is a type of navigation lock gate which is used to allow the passage of inland navigation across different levels in a river system. Aging miter gates have come down with structural degradation due to fatigue and corrosion bringing about a deterioration of structural resistance, influencing the integrity and life cycle costs. Therefore, it is essential to re-assess our belief in the structural safety and perform maintenance accordingly to optimize the operation and maintenance costs. This study demonstrates an approach to update the reliability of aging miter gates under the effect of fatigue and corrosion. The failure probability calculated in this study is founded on a probabilistic crack propagation analysis which considers the uncertainty in material properties, weld geometry, and fatigue loading. The time-dependent capacity of a miter gate is assessed including the influence of corrosion fatigue and corrosion growth rate. The procedure is then used for an example where the probability of failure of a miter gate welded joint is updated based on inspection outcomes. The reliability updating approach presented here can be used for risk-based maintenance optimization of lock gates.
Updating the Reliability of Aging Miter Gates in the Presence of Corrosion and Fatigue
Miter gate is a type of navigation lock gate which is used to allow the passage of inland navigation across different levels in a river system. Aging miter gates have come down with structural degradation due to fatigue and corrosion bringing about a deterioration of structural resistance, influencing the integrity and life cycle costs. Therefore, it is essential to re-assess our belief in the structural safety and perform maintenance accordingly to optimize the operation and maintenance costs. This study demonstrates an approach to update the reliability of aging miter gates under the effect of fatigue and corrosion. The failure probability calculated in this study is founded on a probabilistic crack propagation analysis which considers the uncertainty in material properties, weld geometry, and fatigue loading. The time-dependent capacity of a miter gate is assessed including the influence of corrosion fatigue and corrosion growth rate. The procedure is then used for an example where the probability of failure of a miter gate welded joint is updated based on inspection outcomes. The reliability updating approach presented here can be used for risk-based maintenance optimization of lock gates.
Updating the Reliability of Aging Miter Gates in the Presence of Corrosion and Fatigue
Lecture Notes in Civil Engineering
Reddy, J. N. (editor) / Wang, Chien Ming (editor) / Luong, Van Hai (editor) / Le, Anh Tuan (editor) / Dang, Thuong Van (author) / Mai, Quang Anh (author) / Morato, Pablo G. (author) / Rigo, Philippe (author)
2020-07-28
7 pages
Article/Chapter (Book)
Electronic Resource
English
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