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Numerical Simulation of FRP-Jacketed RC Columns Subjected to Cyclic and Seismic Loading

Teng, J. G. / Lam, L. / Lin, G. / Lu, J. Y. / Xiao, Q. G.

This paper presents a numerical model for the cyclic/seismic behavior of reinforced concrete (RC) columns retrofitted with fiber-reinforced polymer (FRP) confining jackets. Such a column model has previously been unavailable despite the popularity of FRP jacketing as a seismic retrofit method for RC columns. The proposed numerical column model is based on a recent stress-strain model for FRP-confined concrete subjected to cyclic axial compression and a hysteretic moment-rotation model to account for the effect of strain penetration of the longitudinal steel bars in the column footing (i.e., effect of fixed-end rotations). This column model was implemented into OpenSees (Open System for Earthquake Engineering Simulation) using its fiber-section force-based nonlinear beam-column element. Predictions of the numerical column model for three FRP-jacketed RC columns subjected to either double-curvature bending or single-curvature bending are shown to be in close agreement with the test results.

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Numerical Simulation of FRP-Jacketed RC Columns Subjected to Cyclic and Seismic Loading

Teng, J. G. / Lam, L. / Lin, G. / Lu, J. Y. / Xiao, Q. G.

This paper presents a numerical model for the cyclic/seismic behavior of reinforced concrete (RC) columns retrofitted with fiber-reinforced polymer (FRP) confining jackets. Such a column model has previously been unavailable despite the popularity of FRP jacketing as a seismic retrofit method for RC columns. The proposed numerical column model is based on a recent stress-strain model for FRP-confined concrete subjected to cyclic axial compression and a hysteretic moment-rotation model to account for the effect of strain penetration of the longitudinal steel bars in the column footing (i.e., effect of fixed-end rotations). This column model was implemented into OpenSees (Open System for Earthquake Engineering Simulation) using its fiber-section force-based nonlinear beam-column element. Predictions of the numerical column model for three FRP-jacketed RC columns subjected to either double-curvature bending or single-curvature bending are shown to be in close agreement with the test results.

Numerical Simulation of FRP-Jacketed RC Columns Subjected to Cyclic and Seismic Loading

Teng, J. G. / Lam, L. / Lin, G. / Lu, J. Y. / Xiao, Q. G.

This paper presents a numerical model for the cyclic/seismic behavior of reinforced concrete (RC) columns retrofitted with fiber-reinforced polymer (FRP) confining jackets. Such a column model has previously been unavailable despite the popularity of FRP jacketing as a seismic retrofit method for RC columns. The proposed numerical column model is based on a recent stress-strain model for FRP-confined concrete subjected to cyclic axial compression and a hysteretic moment-rotation model to account for the effect of strain penetration of the longitudinal steel bars in the column footing (i.e., effect of fixed-end rotations). This column model was implemented into OpenSees (Open System for Earthquake Engineering Simulation) using its fiber-section force-based nonlinear beam-column element. Predictions of the numerical column model for three FRP-jacketed RC columns subjected to either double-curvature bending or single-curvature bending are shown to be in close agreement with the test results.

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Title:

Numerical Simulation of FRP-Jacketed RC Columns Subjected to Cyclic and Seismic Loading

Contributors:

Teng, J. G. (author) / Lam, L. (author) / Lin, G. (author) / Lu, J. Y. (author) / Xiao, Q. G. (author)

Published in:

Journal of Composites for Construction ; 20

Publication date:

2015-05-11

ISSN:

1090-0268 , 1943-5614

DOI:

https://doi.org/10.1061/(ASCE)CC.1943-5614.0000584

Type of media:

Article (Journal)

Type of material:

Electronic Resource

Language:

Unknown

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