Inelastic Response of Reinforced Concrete Columns Subjected to Two-Dimensional Earthquake Motions

Suharwardy, M.I.H.; Pecknold, D.A.

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https://hdl.handle.net/2142/13917 Copy

Description

Title

Inelastic Response of Reinforced Concrete Columns Subjected to Two-Dimensional Earthquake Motions

Author(s)

• Suharwardy, M.I.H.
• Pecknold, D.A.

Issue Date

1978-10

Keyword(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.

Publisher

University of Illinois Engineering Experiment Station. College of Engineering. University of Illinois at Urbana-Champaign.

Series/Report Name or Number

Civil Engineering Studies SRS-455

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/13917

Sponsor(s)/Grant Number(s)

• National Science Foundation Grant ENV 75-08456
• National Science Foundation Grant ENV 77-07190

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