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Appl. Sci. 2019, 9(3), 607; https://doi.org/10.3390/app9030607

Fatigue Life of RC Bridge Decks Affected by Non-Uniformly Dispersed Stagnant Water

1
Department of Civil Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
2
Department of Civil and Environmental Engineering, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi, Ishikawa 921-8501, Japan
3
Department of Civil Engineering, Graduate School of Urban Innovation, Yokohama National University, 79-1 Tokiwadai, Hodogaya, Yokohama 240-8501, Japan
*
Author to whom correspondence should be addressed.
Received: 19 January 2019 / Revised: 7 February 2019 / Accepted: 9 February 2019 / Published: 12 February 2019
(This article belongs to the Special Issue Fatigue and Fracture of Non-metallic Materials and Structures)
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Abstract

Stagnant water on reinforced concrete (RC) decks reduces their life significantly compared to the case of dry states. Fully submerged states have been investigated as the most severe case, which is however rarely experienced in reality. Currently, it is possible to simulate concrete–water interactions for lifetime prediction of RC decks. In this study, fatigue lifetime is systematically computed for various locations of stagnant water at the upper layer of RC decks. It is found that the patterns of wet and dry areas have a great influence on the remaining fatigue life even though the same magnitude of cracking develops. Then, a hazard map for the wetting locations with regard to the remaining fatigue life is presented based on the systematically arranged simulation. Finally, a nonlinear correlation is introduced for fatigue life prediction based upon site inspected wetting locations, which can be detected by non-destructive testing technology. View Full-Text
Keywords: multi-scale simulation; fatigue loading; road bridge decks; stagnant water multi-scale simulation; fatigue loading; road bridge decks; stagnant water
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Fathalla, E.; Tanaka, Y.; Maekawa, K. Fatigue Life of RC Bridge Decks Affected by Non-Uniformly Dispersed Stagnant Water. Appl. Sci. 2019, 9, 607.

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