S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Civil & Environmental Engineering (건설환경공학부) ICASP13
State-Space Models for Network-Scale Analysis of Bridge Inspection Data
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- Issue Date
- 13th International Conference on Applications of Statistics and Probability in Civil Engineering(ICASP13), Seoul, South Korea, May 26-30, 2019
- Visual inspection is one of the main techniques for monitoring the deterioration in networks of bridges. Visual inspection data commonly display inconsistencies due to the subjective nature of the evaluation and because different individuals perform the inspections over time. One of the main challenges when interpreting visual inspections is differentiating between measurement errors and legitimate changes in a structures condition. This study proposes a state-space model for modeling the deterioration behaviour while accommodating the inspector-induced uncertainty. The proposed framework allows modeling inspections uncertainty according to the current structures state as well as the variability associated with each inspector. The predictive capacity of the proposed framework is verified with synthetic inspection data, where the true deterioration state is known.
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