Abstract
In Japan, remediation and replacement of reinforced-concrete (RC) bridge decks consumes a major part of the road structure maintenance budget, and numerous studies have explored ways to expand the service life of the deck. Traditionally, corrective maintenance procedures and repairs have been conducted when noteworthy deterioration becomes visible to the naked eye, for example, as crack patterns on the deck surface. However, from the perspective of life cycle cost, to reduce maintenance budgets, the deterioration and damage should be evaluated before the damage reaches the surface (J Struct Eng 123: 1390–1401, 1997). Accordingly, in this study, internal damage of an RC deck due to fatigue failure is reproduced by a wheel loading testing apparatus, and the damage progress is evaluated by AE measurements as well as by elastic wave/AE tomography analysis.
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Acknowledgment
In this study, experimental works were principally conducted in the College of Engineering of Nihon University under the support of the Cross-Ministerial Strategic Innovation Promotion Program (SIP). The authors extend special thanks to Prof. I. Iwaki and Associate Prof. Y. Koda with Nihon University as well as Associate Prof. Y. Tanaka with the University of Tokyo.
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Shiotani, T. et al. (2017). Fatigue Failure Evaluation of RC Bridge Deck in Wheel Loading Test by AE Tomography. In: Shen, G., Wu, Z., Zhang, J. (eds) Advances in Acoustic Emission Technology. Springer Proceedings in Physics, vol 179. Springer, Cham. https://doi.org/10.1007/978-3-319-29052-2_22
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DOI: https://doi.org/10.1007/978-3-319-29052-2_22
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