Analytical Study for Concrete Confinement in Tied Columns
Publication: Journal of Structural Engineering
Volume 115, Issue 11
Abstract
The finite element method is used to study the confinement of concrete by rectangular ties in reinforced‐concrete tied columns. Eight columns are analyzed under monotonically increasing axial cumpression until failure. A general approach for nonlinear analysis of reinforced‐concrete columns based on the finite element is developed. The effects of the volumetric ratio of lateral reinforcement and the distribution of the longitudinal steel and the resulting tie configuration on the confinement action are studied. The results indicate that both the strength and ductility of tied columns increase as the volumetric ratio of the lateral ties increases. The study demonstrates that the relationship between gain in strength of the confined concrete and the volumetric ratio of the lateral steel is approximately linear. It is found that lateral confinement had no effect on the behavior of tied columns at loads less than 70% of the ultimate load. The finite element approach favorably predicted the results obtained experimentally by other investigators.
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References
1.
Abdel‐Halim, M. A. H. (1982). “Nonlinear analysis of a segmental concrete bridge by finite element method.” Thesis presented to The Pennsylvania State University, at University Park, Pa., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
2.
Abu‐Lebdeh, T. M. (1988). “Analytical study by finite element method for concrete confinement in tied columns.” Thesis presented to Jordan University of Science and Tech., Irbid, Jordan, in partial fulfillment of the requirements for the degree of Master of Science.
3.
Bathe, K. J., Wilson, E. L., and Paterson, F. E. (1974). “SAP IV—A structural analysis program for static and dynamic analysis of linear systems.” EERCReport No. 73‐11, Coll. of Engrg., Univ. of California, Berkeley, Calif. June.
4.
Cedolin, L., Crutzen, Y. R. J., and Deipoli, S. (1977). “Triaxial stress‐strain relationship for concrete.” J. Engrg. Mech. Div., ASCE, 103(3), 423–439.
5.
Chen, W. F. (1982). Plasticity of reinforced concrete. McGraw‐Hill Book Co., New York, N.Y.
6.
Park, R., Priestley, M. J., and Gill, W. D. (1982). “Ductility of square‐confined concrete columns.” J. Struct. Engrg., ASCE, 108(4), 929–950.
7.
Scott, B. D., Park, R., and Priestly, M. J. N. (1982). “Stress‐strain behavior of concrete confined by overlapping hoops at low and high strain rates.” J. Amer. Concr. Inst., 97(Jan–Feb.), 13–27.
8.
Shah, S. P., Fafitis, A., and Arnold, R. (1983). “Cyclic loading of spirally reinforced concrete.” J. Struct. Engrg., ASCE, 109(7), 1695–1710.
9.
Sheikh, S. A. (1982). “A comparative study of confinement models.” J. Amer. Concr. Inst., 79(July–Aug.), 296–306.
10.
Sheikh, S. A., Shamim, A., and Uzumeri, S. M. (1982). “Analytical model for concrete confinement in tied columns.” J. Struct. Engrg., ASCE, 108(12), 2703–2721.
11.
Sheikh, S. A., and Uzumeri, S. M. (1980). “Strength and ductility of tied concrete columns.” J. Struct. Div., ASCE, 106(5), 1079–1102.
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Copyright © 1989 ASCE.
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Published online: Nov 1, 1989
Published in print: Nov 1989
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