Stress-Strain Model for High-Strength Concrete Confined by Welded Wire Fabric
This article has a reply.
VIEW THE REPLYThis article has a reply.
VIEW THE REPLYPublication: Journal of Materials in Civil Engineering
Volume 19, Issue 4
Abstract
Increased ductility of columns made with high-strength concrete (HSC) can be accomplished through proper confinement of the concrete core. To determine the effectiveness of welded wire fabric as transverse reinforcement in HSC columns, an experimental investigation involving testing of ten full-scale columns in axial compression was conducted. The performance of columns laterally reinforced with welded wire fabric (WWF) was compared with that of unconfined concrete. Axial stress-strain diagrams of the concrete core from the experimental tests showed that substantial gains in strength and ductility of columns laterally reinforced with WWF can be achieved if the volumetric ratio of transverse steel was larger than 3.5%. Critical points on the stress-strain curve of confined concrete were determined and a mathematical model that considers the effect of the volumetric ratio of transverse steel on the stress-strain relationship is proposed. Comparison between the proposed model and the experimental results showed good agreement between the two.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The writer would like to thank his former student Mr. Ehi Lambert-Aikhionbare of EagleSpan Steel Structures, Inc., Loveland, Colorado, for conducting the laboratory experiments.
References
ACI Committee 360R-92 (ACI). (1992). “Design of slabs on grade.” Farmington Hills, Mich.
ACI Committee 318-05 (ACI). (2005). “Building code requirements for structural concrete and commentary.” Farmington Hills, Mich.
Attard, M. M., and Mendis, P. A. (1993). “Ductility of high strength concrete column.” Australian Civil Engineering Transactions, 35(4), 295–305.
Azizinamini, A., Kuska, S. B., Brungardt, P., and Hatfield, E. (1994). “Seismic behavior of square high-strength concrete columns.” ACI Struct. J., 91(3), 336–345.
Bayrak, O., and Sheikh, S. A. (1998). “Confinement reinforcement design considerations for ductile HSC columns.” J. Struct. Eng., 124(9), 999–1010.
Bjerkeli, L., Tomazewicz, A., and Jensen, J. J. (1990). “Deformation properties and ductility of high strength concrete.” Proc., 2nd Int. Symp. on Applications of High-Strength Concretes, SP-121, American Concrete Institute, Detroit, 215–238.
Carrasquillo, R. L., Nilson, A. H., and Slate, F. O. (1981). “Properties of high strength concrete subject to short-term loads.” ACI J., 78(3), 171–178.
Fujii, M., Kobayashi, K., Miyagawa, T., Inoue, S., and Matsumoto, T. (1988). “A study on the application of a stress-strain relation of confined concrete.” Proc., JCA Cement and Concrete, Japan Cement Association, Tokyo, 311–314.
Furlong, R. W., Fenves, G. L., and Marino, R. (1991). “Welded structural wire reinforcement for columns.” ACI Struct. J., 88(5), 585–591.
Hoshikuma, J., Kawashima, K., Nagaya, K., and Taylor, A. W. (1997). “Stress-strain model for confined reinforced concrete in bridge piers.” J. Struct. Eng., 123(5), 624–633.
Kent, D. C., and Park, R. (1971). “Flexural members with confined concrete.” J. Struct. Div., 97(7), 1969–1990.
Lambert-Aikhionbare, N., and Tabsh, S. W. (2001). “Confinement of high-strength concrete with welded wire reinforcement.” ACI Struct. J., 98(5), 677–685.
Légeron, F., and Paultre, P. (2003). “Uniaxial confinement model for normal- and high-strength concrete columns.” J. Struct. Eng., 129(2), 241–252.
Mander, J. B., Priestly, M. J. N., and Park, R. (1988). “Theoretical stress-strain model for confined concrete.” J. Struct. Eng., 114(8), 1804–1826.
Mau, S-T., Holland, J. M., and Hong, L. (1998). “Small-column compression tests on concrete confined by WWF.” J. Struct. Eng., 124(3), 252–261.
Muguruma, H., Watanabe, S., Katsuta, S., and Tanaka, S. (1980). “Stress-strain model of confined concrete.” Proc., JCA Cement and Concrete, Japan Cement Association, Tokyo, 429–432.
Popovics, S. (1973). “A numerical approach to the complete stress-strain curve of concrete.” Cem. Concr. Res., 3(5), 583–599.
Ralls, M-L., and Carrasquillo, R. (1994). “Texas high-strength concrete bridge project.” Public Roads, 57(4), 1–7.
Razvi, S., and Saatcioglu, M. (1999). “Confinement model for high-strength concrete.” J. Struct. Eng., 125(3), 281–289.
Saatcioglu, M., and Grira, M. (1999). “Confinement of reinforced concrete columns with welded reinforcement grids.” ACI Struct. J., 96(1), 29–39.
Saatcioglu, M., and Razvi, S. R. (1992). “Strength and ductility of confined concrete.” J. Struct. Eng., 118(6), 1590–1607.
Sheikh, S. A., and Uzumeri, S. M. (1982). “Analytical model for concrete confinement in tied columns.” J. Struct. Div., 108(12), 2703–2722.
Thornfeldt, E., Tomaszewics, A., and Jensen, J. J. (1987). “Mechanical properties of high-strength concrete and application in design.” Proc., Symp. Utilization of High Strength Concrete, Stavanger, Norway, 149–159.
Yong, Y-K., Nour, M. G., and Nawy, E. G. (1988). “Behavior of laterally confined high-strength concrete under axial loading.” J. Struct. Eng., 114(2), 332–351.
Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 19 • Issue 4 • April 2007
Pages: 286 - 294
Copyright
© 2007 ASCE.
History
Received: Jun 30, 2004
Accepted: Apr 14, 2006
Published online: Apr 1, 2007
Published in print: Apr 2007
Notes
Note. Associate Editor: Christopher K. Y. Leung
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.