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Reliability-based life prediction of aging concrete bridge decks

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceProceedings of International RILEM Workshop on Life Prediction and Aging Management of Concrete Structures: 16 October 2000, Cannes, France
SubjectBridges
Abstract
This paper presents a probabilistic approach to life prediction of concrete highway bridge decks based on Bogdanoff''s cumulative damage model. The condition of the deck is discretized into a finite set of damage states including no damage, onset of corrosion, crack initiation, major damage and failure. The damage accumulation process is modeled using a stationary unit jump Markov chain in which the probability distribution of damage after a duty cycle is assumed to depend only on the length of the duty cycle and the damage accumulated at the start of the cycle. The service life is determined from the time to reaching the absorbing state, which may successively be redefined as the onset of corrosion, cracking, spalling, etc. The proposed model is simple to use and the statistics of the lifetime and damage states at any given time are easily determined. The model yields a practical tool for the condition assessment, life prediction, and maintenance management of highway bridge decks. An example illustrating the application of the proposed approach is presented.
Publication date
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 44246
NRC-IRC-10057
NPARC number20378702
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Record identifier2294cc14-451f-4412-9ea8-2191b68a1247
Record created2012-07-24
Record modified2020-03-26
Date modified: