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- W4225473668 abstract "Chloride-induced deterioration is one of the main deterioration mechanisms for bridges. Directly detecting the chloride ion concentration is uneconomical for most areas. Experienced workers estimate the chloride-induced deterioration through the corrosion of reinforced concrete, which results in ineffective maintenance due to the inaccurate estimation. Hence, we formulate a predictive Hidden semi-Markov Model for bridges subject to chloride-induced deterioration. The Hidden semi-Markov Models are capable of handling the “hidden states” scenario and have more general applications than the Hidden Markov Models. We derive the corresponding forward-backward algorithm of the Hidden semi-Markov Model to predict the future deterioration state based on the past observation sequences. A numerical example of reinforced concrete bridge decks is utilized to illustrate the applicability of the overall approach. In the numerical example, we discover that the predictive results of the Hidden semi-Markov Models outperform those of the Hidden Markov Models when we regard the deterioration trend from the physical model-Fick's second law as the benchmark. When the detection intervals are stochastic, the Hidden semi-Markov model is more practical than the Hidden Markov model." @default.
- W4225473668 created "2022-05-05" @default.
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- W4225473668 date "2021-12-01" @default.
- W4225473668 modified "2023-09-29" @default.
- W4225473668 title "A predictive Hidden semi-Markov Model for bridges subject to chloride-induced deterioration" @default.
- W4225473668 doi "https://doi.org/10.1109/qrs-c55045.2021.00114" @default.
- W4225473668 hasPublicationYear "2021" @default.
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