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- Title
Structural reliability assessment of steel bridges using OSIM visual inspection data and Bayesian updating.
- Authors
Salaheddine, Mohamad; Arjomandi, Kaveh
- Abstract
Structural reliability theories are used in the calibration of load and resistance factor design (LRFD) in the Canadian Highway Bridge Design Code (CHBDC). The LRFD approach contains certain assumptions about uncertainties in the load and capacity estimation that prevent it from fully exploiting the information gathered during visual inspections. This paper presents a reliability-based framework for analyzing the visual inspection data obtained according to the Ontario structure inspection manual (OSIM). Existing deterioration models are adapted. The Bayesian interference is utilized to estimate the updated structural properties according to the prior information from the bridge maintenance and deterioration models and the new information collected from visual inspections. The criteria set by the CHBDC are used to analyze components and systems reliability. The value of the proposed framework for bridge evaluation and optimizing maintenance is demonstrated through the full implementation of a case-study bridge in the Canadian Province of NB.
- Subjects
ONTARIO; STRUCTURAL reliability; LOAD factor design; IRON &; steel bridges; ENGINEERING reliability theory; RELIABILITY in engineering; BRIDGE failures; BRIDGE inspection
- Publication
Canadian Journal of Civil Engineering, 2023, Vol 50, Issue 10, p815
- ISSN
0315-1468
- Publication type
Article
- DOI
10.1139/cjce-2022-0134