Title:
High-Resolution Modeling of Reinforced Concrete Bridge Columns under Seismic Loading
Author(s):
Zeynep Firat Alemdar, Adolfo B. Matamoros, and JoAnn Browning
Publication:
Structural Journal
Volume:
110
Issue:
5
Appears on pages(s):
745-754
Keywords:
earthquake loading; finite element modeling; frequency domain error; photogrammetry; reinforced concrete bridge column
DOI:
10.14359/51685828
Date:
9/1/2013
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. Fourier Domain Error Index analyses showed that the 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.