Multiscale Numerical Modeling of Steel Bridge Deck Pavements Considering Vehicle–Pavement Interaction
Publication: International Journal of Geomechanics
Volume 16, Issue 1
Abstract
Cracking is a major distress in steel bridge deck pavements. To determine the critical cracking zone, a numerical multiscale structural analysis was proposed and performed on the basis of a case study. First, a whole bridge model was analyzed, which revealed that the critical segment under critical load combination was one-fourth of the bridge span. Second, the critical segment was modeled using the finite mixed element method, and the critical local plate was determined. Third, using a submodel technique, the critical orthotropic steel plate with pavement was analyzed. The constructed model was then updated through an equivalent impact factor obtained from a numerical model analysis that considered vehicle–pavement interaction. From such multiscale model analysis, the crack distribution law of steel deck pavements was determined. Comparison of the analysis results from a traditional model with the multiscale model revealed the non-negligible effects of bridge structure and pavement evenness. Findings from this study may provide guidance for improving the preservation practice of steel deck pavements.
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Acknowledgments
The authors appreciate the support of the National Natural Science Foundation of China (No. 51308116 and 51378122).
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Published In
International Journal of Geomechanics
Volume 16 • Issue 1 • February 2016
Copyright
© 2015 American Society of Civil Engineers.
History
Received: Mar 4, 2014
Accepted: Oct 22, 2014
Published online: Mar 17, 2015
Discussion open until: Aug 17, 2015
Published in print: Feb 1, 2016
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