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Modeling Surface Deformations and Hinging Regions in Reinforced Concrete Bridge Columns
Firat Alemdar, Zeynep Matamoros, Adolfo B. Browning, JoAnn
Firat Alemdar, Zeynep
Matamoros, Adolfo B.
Browning, JoAnn
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Abstract
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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Date
2011-08
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University of Kansas Center for Research, Inc.
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SL11_2.pdf
Adobe PDF, 1.24 MB
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Keywords
Reinforced concrete bridge column, Finite element modeling, Photogrammetry, Earthquake loading, Frequency domain error
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.