【摘 要】
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Fatigue is regarded as one of the major causes of failure for civil infrastructure worldwide.Continuous operation of such infrastructure over time requires significant expenditure in inspection and ma
【机 构】
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Department of Civil Engineering,Federal University of Santa Catarina,SC,Brazil
【出 处】
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The 7th International Conference on Bridge Maintenance, Safe
论文部分内容阅读
Fatigue is regarded as one of the major causes of failure for civil infrastructure worldwide.Continuous operation of such infrastructure over time requires significant expenditure in inspection and maintenance activities.The cost-effective safety management of ageing infrastructure involves finding the appropriate amount of resources to allocate to inspection and maintenance activities,in order to keep expected costs of failure (risk) under control.This article addresses optimal inspection planning for general infrastructure subject to fatigue crack propagation.One of the novelties of the study is the use of an accurate polynomial chaos model (Beck & Gomes,2013) to capture the random nature of the crack propagation phenomenon.Uncertainties of inspection equipment are also taken into account.The objective function is obtained by adding initial costs,cost of inspections and the expected costs of repair and failure.
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