Large-Bar Connection for Precast Bridge Bents in Seismic Regions
Publication: Journal of Bridge Engineering
Volume 15, Issue 3
Abstract
A new beam-to-column connection has been developed for assembling precast concrete bridge bents in regions of high seismicity. The connection is made with a small number of large column bars, which are grouted into large corrugated-metal ducts embedded in the cap beam. Bents built with these connections can be erected quickly and permit generous construction tolerances. To evaluate the seismic performance of the proposed connection, lateral-load tests were performed on three manifestations of the connection, as well as on a comparable cast-in-place connection. The tests demonstrated that the force-displacement response and damage progression in the precast connection are similar to those of typical cast-in-place concrete connections. Deliberate partial debonding of the longitudinal reinforcement only slightly affected the force-displacement response and observed damage.
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Acknowledgments
This project was made possible through funding provided by the Washington State Department of Transportation. Vince Chaijaroen, Laila Cohagen, Wayne Brown, Amanda Jellin, Jon Padvorac, Alicia Black, Golnaz Jankah, John Werner, Jason Perkinaz, and many others helped make the project a success through their invaluable help and expertise.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 15 • Issue 3 • May 2010
Pages: 231 - 239
Copyright
© 2010 ASCE.
History
Received: Sep 12, 2008
Accepted: Sep 20, 2009
Published online: Oct 12, 2009
Published in print: May 2010
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