A software prototype for assessing the reliability of a concrete bridge superstructure subjected to chloride-induced reinforcement corrosion

Ronald Schneider, Sebastian Thöns, Johannes Fischer, Maximilian Bügler, André Borrmann, Daniel Straub

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A software prototype is developed for assessing and updating the reliability of single-cell prestressed concrete box girders subjected to chloride-induced reinforcement corrosion. The underlying system model consists of two integrated sub-models: a condition model for predicting the deterioration state of the box girder and a structural model for evaluating the overall system reliability. The condition model is based on a dynamic Bayesian network (DBN) model which considers the spatial variation of the corrosion process.
Inspection data are included in the calculation of the system reliability through Bayesian updating on the basis of the DBN model. To demonstrate the effect of partial inspections, the software prototype is applied to a case study of a typical highway bridge with six spans. The case study illustrates that it is possible to infer the condition of uninspected parts of the structure due to the spatial correlation of the corrosion process.
Original languageEnglish
Title of host publicationLife-Cycle of Structural Systems : Design, Assessment, Maintenance and Management
PublisherCRC Press
Publication date2014
Pages846-853
ISBN (Electronic)978-1-138-00120-6
Publication statusPublished - 2014
EventFourth International Symposium on Life-Cycle Civil Engineering - Tokyo, Japan
Duration: 16 Nov 201419 Nov 2014
Conference number: 4

Conference

ConferenceFourth International Symposium on Life-Cycle Civil Engineering
Number4
Country/TerritoryJapan
CityTokyo
Period16/11/201419/11/2014

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