Development and Implementation of a Continuous Strain Monitoring System on a Multi-Girder Composite Steel Bridge
Publication: Journal of Bridge Engineering
Volume 11, Issue 6
Abstract
This paper describes the implementation and evaluation of a long-term strain monitoring system on a three-span, multisteel girder composite bridge located on the interstate system. The bridge is part of a network of bridges that are currently being monitored in Connecticut. The three steel girders are simply supported, whereas the concrete slab is continuous over the interior supports. The bridge has been analyzed using the standard AASHTO Specifications and the analytical predictions have been compared with the field monitoring results. The study has included determination of the location of the neutral axes and the evaluation of the load distributions to the different girders when large trucks cross the bridge. A finite-element analysis of the bridge has been carried out to further study the distribution of live load stresses in the steel girders and to study how continuity of the slabs at the interior joints would influence the overall behavior. The results of the continuous data collection are being used to evaluate the influence of truck traffic on the bridge and to establish a baseline for long-term monitoring.
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Acknowledgments
This research is a joint effort between the University of Connecticut and the Connecticut Department of Transportation, with funding from the Connecticut Department of Transportation and the U.S. Federal Highway Administration. The contents do not necessarily reflect the official views or policies of the Federal Highway Administration or of the Connecticut Department of Transportation. The support of the Connecticut Transportation Institute, located at the University of Connecticut, is gratefully acknowledged.
References
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 11 • Issue 6 • November 2006
Pages: 753 - 762
Copyright
© 2006 ASCE.
History
Received: Feb 7, 2006
Accepted: May 23, 2006
Published online: Nov 1, 2006
Published in print: Nov 2006
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