TECHNICAL NOTES
Feb 1, 2005

Simple Carbon-Fiber-Reinforced-Plastic-Confined Concrete Model for Moment-Curvature Analysis

Publication: Journal of Composites for Construction
Volume 9, Issue 1

Abstract

This paper presents a simple model to calculate concrete properties for reinforced concrete members that are confined by carbon-fiber-reinforced plastic (CFRP) sheets. The model simplifies and incorporates formulas from some of the existing models. Results are examined for typical circular and square columns with a range of cross-section dimensions and axial loads. Results demonstrate that the proposed simple model is quite sufficient in calculating moment-curvature relationships of CFRP-confined members.

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Acknowledgments

The writers thank Prof. K. Kawashima of the Tokyo Institute of Technology and Prof. J. G. Teng of the Hong Kong Polytechnic University for providing advice and information about their confinement models.

References

California Department of Transportation (Caltrans). (1996). “Memo to designers 20-4 attachment B.” Engineering Service Center, Earthquake Engineering Branch, Sacramento, Calif., November.
Chun, S., Kim, J., Park, H., and Park, C. (1999). “A stress-strain model of concrete confined by carbon fiber sheets.” AIK Proc., 18(2), 335–340.
Kawashima, K., Hosotani, M., and Yoneda, K. (2001). “Carbon fiber retrofit of reinforced concrete bridge bents.” Toward new generation seismic design methodology of bridges, Tokyo Institute of Technology, Tokyo.
Lam, L., and Teng, J. G., (2003). “Design-oriented stress-strain model for FRP-confined concrete in rectangular columns.” J. Reinf. Plast. Compos., 22(13), 1149–1186.
Samaan, M., Mirmiran, A., and Shahawy, M. (1998). “Model of concrete confined by fiber composites.” J. Struct. Eng., 124(9), 1025–1031.
Surenshkumar, K. (2004). “Seismic Retrofit of Two-Column Bents with Diamond Shape Columns.” MSCE thesis, submitted to Civil and Environmental Engineering Department, University of Nevada, Reno.
Wehbe, N., and Saiidi, M. (2003). “User’s manual for RCMC v. 2.0: A computer program for moment-curvature analysis of confined and unconfined reinforced concrete sections.” Rep. No. CCEER 03-2, Civil Engineering Dept., Univ. of Nevada, Reno, Nev.
Xiao, Y., and Wu, H. (2000). “Compressive behavior of Concrete Confined by carbon fiber composite jackets.” J. Mater. Civ. Eng., 12(2), 139–146.

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Information

Published In

Go to Journal of Composites for Construction
Journal of Composites for Construction
Volume 9Issue 1February 2005
Pages: 101 - 104

History

Received: Apr 18, 2003
Accepted: May 3, 2004
Published online: Feb 1, 2005
Published in print: Feb 2005

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Authors

Affiliations

M. Saiid Saiidi
Director, Office of Undergraduate Research, and Professor, Civil & Environmental Engineering, Reno, NV 89557.
Kandasamy Sureshkumar
Graduate Research Assistant, Civil Engineering Dept. (258), Univ. of Nevada, Reno, NV 89557.
Claudia Pulido
Bridge Designer, Figg Bridge Engineers, 424 N. Calhoun St., Tallahassee, FL 32301.

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