Shear Testing of Precast Bridge Deck Panel Transverse Connections
Publication: Journal of Performance of Constructed Facilities
Volume 26, Issue 4
Abstract
Precast deck panels are increasingly being used to reduce construction times as part of a push for accelerated bridge construction by some state departments of transportation. Despite the short-term benefits, the connections between panels have a history of serviceability problems. To evaluate the service and ultimate behavior of current and newly proposed connections, 12 push-off tests were performed on precast bridge deck transverse connections for shear. These tests used an improved shear specimen geometry that allowed the connection to deform in more realistic shear. This new test setup included spaces that allowed diagonal cracks to form and reinforcement to pull out of the connection. The push-off tests established the cracking and ultimate shear strengths of each connection detail. These details included a welded connection, an unreinforced grouted connection, and a post-tensioned-type connection tested with and without an applied compression force. Results of each detail type are compared. The test results show that the post-tensioned connection outperformed the other connection details, with 2.1 times the shear capacity of a welded connection spaced at 45.7 cm (18 in.).
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Acknowledgments
The authors would like to acknowledge and thank the Utah DOT and the Utah Transportation Center (UTC) for funding this research.
References
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Information & Authors
Information
Published In
Journal of Performance of Constructed Facilities
Volume 26 • Issue 4 • August 2012
Pages: 462 - 468
Copyright
© 2012. American Society of Civil Engineers.
History
Received: Jul 8, 2010
Accepted: Mar 29, 2011
Published online: Mar 31, 2011
Published in print: Aug 1, 2012
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