Static and Fatigue Tests of Steel-Precast Composite Beam Specimens with Through-Bolt Shear Connectors
Publication: Journal of Bridge Engineering
Volume 24, Issue 5
Abstract
Increasing demand for the rapid and economical construction of bridges has encouraged engineers to use accelerated bridge construction through modular assembly. Full-depth, precast concrete decks connected to steel girders is one approach where the major components can be fabricated off-site. Currently, welded, headed shear studs are the most common type of shear connectors used in composite bridge construction. A potentially attractive alternative is the use of slip-resistant through-bolt shear connectors. The following paper investigates the static and fatigue performance of such connectors through the testing of three beam specimens. The static test results provide insight on the degree of composite interaction and shear connection achieved and the load-slip behavior for this connection type. The fatigue testing did not result in any connector failures. The fatigue performance of the through-bolt shear connectors far exceeded the expected performance of welded shear studs.
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Acknowledgments
Financial support for this research was provided by the Canadian Institute of Steel Construction (CISC), the Natural Sciences and Engineering Research Council of Canada (NSERC), the Ontario Graduate Scholarship (OGS) Program, and the Ministry of Transportation of Ontario (MTO) and is gratefully acknowledged. Lab technicians Richard Morrison, Douglas Hirst, and Peter Volcic are thanked for their assistance with this research. Taylor Porter is also thanked for his input in the specimen design.
References
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Information
Published In
Journal of Bridge Engineering
Volume 24 • Issue 5 • May 2019
Copyright
© 2019 American Society of Civil Engineers.
History
Received: Feb 28, 2018
Accepted: Oct 19, 2018
Published online: Mar 12, 2019
Published in print: May 1, 2019
Discussion open until: Aug 12, 2019
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