Monitoring Substructure Movements during Slide-In Bridge Construction
Publication: Journal of Infrastructure Systems
Volume 23, Issue 2
Abstract
To reduce disruption to traffic during bridge replacement, accelerated bridge replacement (ABR) methodologies are being developed. One of the ABR methodologies being implemented is slide-in bridge construction (SIBC), which reduces the total duration of traffic disruption to less than one or two weekends. Because the SIBC activities are new, the system response is unknown. Quantification of the loads acting on permanent and temporary structures during the slide operation is required to develop recommendations for standardizing SIBC. With this purpose, substructure movements were monitored during an SIBC project in Michigan, USA, and the forces acting on the substructure during the slide operation were back-calculated. Theoretically, forces develop in the sliding direction because of friction, and in the vertical direction because of superstructure weight. However, the analysis results indicated that a force couple developed due differential friction at the sliding surfaces, and resulted in rotating the superstructure and pushing the substructure in the horizontal direction transverse to the slide. Therefore, it is recommended to include monitoring as a task in the project special provisions until the process is standardized.
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Acknowledgments
This project is funded by the Michigan Department of Transportation. The authors would like to acknowledge the support extended by Mr. David Juntunen, Mr. Corey Rogers, and the research advisory panel members for successful completion of the project. The assistance of graduate student Ozan Utku Ridvanoglu in the FE modeling and analysis is highly appreciated.
Disclaimer
This publication is disseminated in the interest of information exchange. The Michigan Department of Transportation (hereinafter referred to as MDOT) expressly disclaims any liability, of any kind, or for any reason, that might otherwise arise out of any use of this publication or the information or data provided in the publication. MDOT further disclaims any responsibility for typographical errors or accuracy of the information provided or contained within this information. MDOT makes no warranties or representations whatsoever regarding the quality, content, completeness, suitability, adequacy, sequence, accuracy or timeliness of the information and data provided, or that the contents represent standards, specifications, or regulations.
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Information & Authors
Information
Published In
Journal of Infrastructure Systems
Volume 23 • Issue 2 • June 2017
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Aug 31, 2015
Accepted: Jul 5, 2016
Published online: Sep 2, 2016
Discussion open until: Feb 2, 2017
Published in print: Jun 1, 2017
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