Modeling Structural Performance of Ultrahigh Performance Concrete I-Girders
Publication: Journal of Bridge Engineering
Volume 17, Issue 5
Abstract
Ultrahigh performance concrete (UHPC) is an advanced cementitious composite material that has been developed in recent decades. When compared with more conventional cement-based concrete materials, UHPC tends to exhibit superior properties such as increased durability, strength, and long-term stability. This computational investigation focused on modeling the structural behaviors of UHPC components including prestressed UHPC AASHTO Type II girders. The concrete damaged plasticity model was tailored to model UHPC within a commercially available finite-element analysis package. This manuscript focuses on modeling three UHPC I-girders tested under flexural or shear loading configurations. The concrete damaged plasticity model was demonstrated to replicate both linear and nonlinear structural responses of I-girders reasonably well. A set of UHPC constitutive properties were developed that facilitate the model replication of the local and global responses observed in the series of physical tests.
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Acknowledgments
The research that is the subject of this paper was funded by the Federal Highway Administration. The authors gratefully acknowledge this support. The publication of this article does not necessarily indicate approval or endorsement of the findings, opinions, conclusions, or recommendations either inferred or specifically expressed herein by the Federal Highway Administration or the U.S. government.
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Information & Authors
Information
Published In
Journal of Bridge Engineering
Volume 17 • Issue 5 • September 2012
Pages: 754 - 764
Copyright
© 2012 American Society of Civil Engineers.
History
Received: Feb 9, 2011
Accepted: Sep 6, 2011
Published online: Sep 7, 2011
Published in print: Sep 1, 2012
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