Evaluation of Bridge Maintenance Interventions under Changing Deterioration Rates: A Markovian-Based Methodology

Dilum Fernando, Baolin Wan, Scott Walbridge

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract / Description of output

Markovian transition probability matrices employing condition states are often used in bridge management systems to determine optimal intervention strategies. This approach assumes a constant deterioration matrix throughout the entire analysis period. However, in order to adequately model and evaluate intervention options such as fiber-reinforced polymer (FRP) strengthening, it is necessary to model the impact of the intervention on the deterioration rate. This paper presents a Markovian based approach to model interventions that impact deteriorating rates. A model employing this approach is proposed. A methodology to determine the optimal intervention strategy based on steady state probabilities is then presented. The proposed model and methodology are illustrated in an evaluation of intervention options for a concrete girder bridge.
Original languageEnglish
Title of host publicationProceedings of Concerete 2013: "Understanding Concrete"
PublisherConcrete Institute of Australia
Publication statusPublished - 2013
EventThe Concrete Institute of Australia’s Biennial National Conference - Gold Coast, Australia
Duration: 16 Oct 201318 Oct 2013
Conference number: 26

Conference

ConferenceThe Concrete Institute of Australia’s Biennial National Conference
Abbreviated titleConcrete 2013:"Understanding Concrete"
Country/TerritoryAustralia
CityGold Coast
Period16/10/1318/10/13

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