Modeling Surface Deformations and Hinging Regions in Reinforced Concrete Bridge Columns
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Issue Date
2011-08Author
Firat Alemdar, Zeynep
Matamoros, Adolfo B.
Browning, JoAnn
Publisher
University of Kansas Center for Research, Inc.
Type
Technical Report
Is part of series
SL Report;11-2
Published Version
https://iri.ku.edu/reportsMetadata
Show full item recordAbstract
A high-resolution model of a bridge column was developed using the computer program ABAQUS and the accuracy of the model was evaluated for the displacement field and the rotations of a bridge system subjected to biaxial shake-table loading. The effect of simulation parameters (reinforcing bar slip within the joint and stiffness degradation of the concrete) was studied to determine the goodness-of-fit of the displacement and rotation fields recorded during the dynamic response. A Fourier Domain Error Index analyses showed that yield stress of the reinforcement and the boundary conditions of the column submodel were important parameters, and the damage and stiffness degradation parameters were not as important for the goodness-of-fit of the finite element model. The computed rotations at the plastic hinge regions near the beam caps had the best correlation.
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Citation
Firat Alemdar, Z., Matamoros, A., Browning, J.P. , "Modeling Surface Deformations and Hinging Regions in Reinforced Concrete Bridge Columns," SL Report 11-2, University of Kansas Center for Research, Inc., Lawrence, Kansas, August 2011, 59 pp.
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