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Structural Research Series 455PDF


Title:Inelastic Response of Reinforced Concrete Columns Subjected to Two-Dimensional Earthquake Motions
Author(s):Suharwardy, M.I.H.; Pecknold, D.A.
Subject(s):Nonlinear dynamic analysis
Reinforced concrete
earthquake motions
Abstract:This study was undertaken to determine the effects of two-dimensional earthquake motion on reinforced concrete (R/C) columns. An analytical model to represent the shear-deflection-axial load relationship of RIC columns is developed from stress-strain relations of steel and concrete. Improved hysteresis model for steel included the Bauschinger effect and the model for concrete included the deterioration of strength and stiffness under cyclic loading. The lumping of concrete at the end sections for calculating moment-curvature relationships in conjunction with an assumed curvature distribution along the column leads to an efficient procedure for the calculation of the shear-deflection-axial load relationship for RIC columns. The analytical model compares favorably with experimental results for both uniaxial and biaxial loading conditions. The analytical model predicts significant.changes in the strength, energy absorption capacity and accumulated damage responses of the column under biaxial deformations as compared to the corresponding responses under uniaxial deformations.
Issue Date:1978-10
Publisher:University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.
Series/Report:Civil Engineering Studies SRS-455
Genre:Technical Report
Sponsor:National Science Foundation Grant ENV 75-08456
National Science Foundation Grant ENV 77-07190
Date Available in IDEALS:2009-10-08

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