"Evaluation of Bridge Maintenance Interventions under Changing Deterior" by Dilum Fernando, Baolin Wan et al.
 

Document Type

Conference Proceeding

Language

eng

Format of Original

10 p.

Publication Date

2013

Publisher

Concrete Institute of Australia

Source Publication

Proceedings of Concerete 2013: "Understanding Concrete"

Source ISSN

9781877040733

Abstract

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.

Comments

Published version. Published as part of the proceedings of the conference, Concrete 2013: "Understanding Concrete", 2013: 1-10. Publisher Link. © 2013 Concrete Institute of Australia. Used with permission.

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