Analytical Model of Circular CFRP Confined Concrete-Filled Steel Tubular Columns under Axial Compression
Publication: Journal of Composites for Construction
Volume 14, Issue 1
Abstract
This study intends to provide a simplified analytical model of the laterally confined concrete filled steel tube (CCFT) column system which adopts carbon-fiber-reinforced polymer (CFRP) jackets in order to make up for major defects of the traditional concrete filled steel tube (CFT) column system. This CCFT analytical model, by adding one additional parameter for CFRP confinement to the CFT column analytical solution, is greatly simplified and expedites the analytical processes to explain the stress-strain relationship of the CCFT column system. In the study, several types of the CCFT column systems with different parameters are analyzed by the proposed simplified analytical model and its associated numerical program (USC-CFT). To verify the accuracy of the analytical model, this study compares the load-strain relationship calculated by USC-CFT both to the experimental results conducted by the traditional method and to the results calculated by the computer-aided finite element method (FEM) analysis method. This study shows equilibrium conditions, deformation compatibilities, constitutive models, and an analysis procedure used in the proposed simplified analytical solution and presents finite element models and analysis procedure used in FEM analysis.
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References
ADINA. (2001). “Automatic dynamic incremental nonlinear analysis.” ADINA user interface command reference manual, ADINA R&D, Watertown, Mass.
Becque, J., Patnaik, A. K., and Rizkalla, S. H. (2003). “Analytical models for concrete confined with FRP tubes.” J. Compos. Constr., 7(1), 31–38.
Chen, W. F. (1982). Plasticity in reinforced concrete, McGraw-Hill, New York.
Choi, K. K. (2007). “Analytical and experimental studies on mechanical behavior of confined concrete filled tubular columns.” Thesis, presented to Univ. of Southern California at Los Angeles, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
Fam, A., Qie, F. S., and Rizkalla, S. (2004). “Concrete-filled steel tubes subjected to axial compression and lateral cyclic loads.” J. Struct. Eng., 130(4), 631–640.
Inai, E., Mukai, A., Kai, M., Tokinoya, H., Fukumoto, T., and Mori, K. (2004). “Behavior of concrete-filled steel tube beam columns.” J. Struct. Eng., 130(2), 189–202.
Marson, J., and Bruneau, M. (2004). “Cyclic testing of concrete-filled circular steel bridge piers having encased fixed-based detail.” J. Bridge Eng., 9(1), 14–23.
Matthys, S., Toutanji, H., and Taerwe, L. (2006). “Stress-strain behavior of large-scale circular columns confined with FRP composites.” J. Struct. Eng., 132(1), 123–133.
Mirmiran, A., Samaan, M., Echary, H. E., Mastrapa, J. C., and Pico, O. (1998). “Effect of column parameters on FRP-confined concrete.” J. Compos. Constr., 2(4), 175–185.
Nakashima, M., and Liu, D. (2005). “Instability and complete failure of steel columns subjected to cyclic loading.” J. Eng. Mech., 131(6), 559–567.
Spoelstra, M. R., and Monti, G. (1999). “FRP-confined concrete model.” J. Compos. Constr., 3(3), 143–150.
Xiao, Y. (1989). “Experimental study and analytical modeling of triaxial compressive behavior of confined concrete.” Thesis, presented to Kyushu Univ. at Fukuoka, Japan, in partial fulfillment of the requirements for the degree of Doctor of Philosophy (in Japanese).
Xiao, Y., He, W., and Choi, K. K. (2005). “Confined Concrete-filled tubular columns.” J. Struct. Eng., 131(3), 488–497.
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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© 2010 ASCE.
History
Received: Oct 6, 2008
Accepted: Jul 8, 2009
Published online: Jul 13, 2009
Published in print: Feb 2010
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