Hybrid Simulation of Bridge Response to Three-Dimensional Earthquake Excitation Followed by Truck Load
Publication: Journal of Structural Engineering
Volume 140, Issue 8
Abstract
A hybrid simulation approach is used to evaluate the traffic performance of a typical California highway overpass bridge after a major earthquake. The prototype bridge used in this study is a five-span single-column-bent reinforced concrete overpass. A hybrid model, composed of the physical column specimen and the OpenSees model of the remainder of the bridge, was assembled using the OpenFresco framework. Two hybrid simulation tests were performed on the same bridge for the same recorded ground motion scaled to represent two levels of seismic intensity: moderate and high. After the earthquake, loads corresponding to a heavy truck placed in the most critical positions on the bridge were applied on the hybrid model. The data obtained from these tests show that a typical California overpass bridge has the capacity to carry heavy truck loads immediately after a major earthquake event.
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Acknowledgments
This data is based upon work supported by Caltrans project 04-EQ042. This support is gratefully acknowledged. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 140 • Issue 8 • August 2014
Copyright
© 2014 American Society of Civil Engineers.
History
Received: Oct 30, 2012
Accepted: Jul 11, 2013
Published online: Jul 13, 2013
Published in print: Aug 1, 2014
Discussion open until: Aug 17, 2014
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