Abstract
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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
