Effects of Confinement in Circular Hollow Concrete Columns
Publication: Journal of Structural Engineering
Volume 144, Issue 9
Abstract
The strength and ductility of concrete can be improved by adding confinement, which helps RC structures to withstand extreme loads in a ductile manner. However, the confined concrete behavior in hollow sections is not well understood, and thus this paper presents a systematic computational study on the confinement effect in hollow sections using key parameters such as the concrete dilation and confining pressure. Computational results show that the confinement effect on solid and hollow sections is very different. This difference is due to variations in concrete dilation and the distribution of confining pressure across the cross section. It is further shown that for circular hollow columns with a wall thickness ratio of 0.1, one layer of transverse reinforcement provides a satisfactory confining effect. For columns with larger wall thickness ratios up to 0.2, two layers of reinforcement connected with crossties are more appropriate, with an reinforcement ratio of .
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors express their gratitude to the California Department of Transportation (Caltrans) for financing this research work. Sincere appreciation is due to Dr. Charles Sikorsky of Caltrans, who served as the manager and coordinator for this research project.
References
AASHTO. 2012. AASHTO guide specifications for LRFD seismic bridge design (2nd Edition) with 2012 interim revisions. Washington, DC: AASHTO.
AASHTO. 2014. AASHTO guide specifications for LRFD seismic bridge design (2nd Edition) with 2014 interim revisions. Washington, DC: AASHTO.
California Department of Transportation. 2013. Caltrans seismic design criteria version 1.7. Sacramento, CA: California Dept. of Transportation.
Hillerborg, A., M. Modéer, and P. E. Petersson. 1976. “Analysis of crack formation and crack growth in concrete by means of fracture mechanics and finite elements.” Cem. Concr. Res. 6 (6): 773–781. https://doi.org/10.1016/0008-8846(76)90007-7.
Hines, E. M., F. Seible, and M. J. N. Priestley 2002. Seismic performance of hollow rectangular reinforced concrete piers with highly-confined boundary elements. Phase I: Flexure tests; Phase II: Shear test. San Diego: Structural Systems Research Project, Univ. of California.
Hoshikuma, J., K. Kawashima, K. Nagaya, and A. W. Taylor. 1997. “Stress-strain model for confined reinforced concrete in bridge piers.” J. Struct. Eng. 123 (5): 624–633. https://doi.org/10.1061/(ASCE)0733-9445(1997)123:5(624).
Hoshikuma, J., and M. J. N. Priestley. 2000. “Flexural behavior of circular hollow columns with a single layer of reinforcement under seismic loading.” In Proc., Structural Systems Research Project. San Diego: Univ. of California.
Jankowiak, T., and T. Lodygowski. 2005. “Identification of parameters of concrete damage plasticity constitutive model.” Found. Civ. Environ. Eng. 6 (1): 53–69.
Kawashima, K. 1992. “Dynamic strength and ductility of hollow circular reinforced concrete bridge pier.” [in Japanese.] Civ. Eng. J. 34 (10): 34–39.
Lee, J., and G. L. Fenves. 1998. “Plastic-damage model for cyclic loading of concrete structures.” J. Eng. Mech. 124 (8): 892–900. https://doi.org/10.1061/(ASCE)0733-9399(1998)124:8(892).
Liang, X., R. Beck, and S. Sritharan. 2015. Understanding the confined concrete behavior on the response of hollow bridge columns. Sacramento, CA: California Dept. of Transportation.
Lubliner, J., J. Oliver, S. Oller, and E. Oñate. 1989. “A plastic-damage model for concrete.” Int. J. Solids Struct. 25 (3): 299–326. https://doi.org/10.1016/0020-7683(89)90050-4.
Mander, J., M. J. N. Priestley, and R. Park. 1988. “Theoretical stress-strain model for confined concrete.” J. Struct. Eng. 114 (8): 1804–1826. https://doi.org/10.1061/(ASCE)0733-9445(1988)114:8(1804).
Mo, Y. L., D. C. Wong, and K. Maekawa. 2003. “Seismic performance of hollow bridge columns.” ACI Struct. J. 100 (3): 337–348.
Nguyen, H. T., and S. E. Kim. 2009. “Finite element modeling of push-out tests for large stud shear connectors.” J. Constr. Steel Res. 65 (10–11): 1909–1920. https://doi.org/10.1016/j.jcsr.2009.06.010.
Obaidat, Y. T. 2011. “Structural retrofitting of concrete beams using FRP-debonding issues.” Ph.D. dissertation, Dept. of Construction Sciences, Structural Mechanics, Lund Univ.
Papanikolaou, V. K., and A. J. Kappos. 2009. “Numerical study of confinement effectiveness in solid and hollow reinforced concrete bridge piers: Methodology.” Comput. Struct. 87 (21–22): 1427–1439. https://doi.org/10.1016/j.compstruc.2009.05.004.
Ranzo, G., and M. J. N. Priestley. 2001. Seismic performance of circular hollow columns subjected to high shear. San Diego: Structural Systems Research Project, Univ. of California.
Saatcioglu, M., and S. R. Razvi. 1992. “Strength and ductility of confined concrete.” J. Struct. Eng. 118 (6): 1590–1607. https://doi.org/10.1061/(ASCE)0733-9445(1992)118:6(1590).
Scott, B. D., R. Park, and M. J. N. Priestley. 1982. “Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates.” ACI J. Proc. 79 (1): 13–27.
Snyder, R., J. Vander Werff, Z. Thiemann, S. Sritharan, and J. Holombo. 2011. Seismic performance of an I-girder to inverted-T bent cap connection. Sacramento, CA: California Dept. of Transportation.
Yeh, Y. K., Y. L. Mo, and C. Y. Yang. 2001. “Seismic performance of hollow circular bridge piers.” ACI Struct. J. 98 (6): 862–871.
Yeh, Y.-K., Y. L. Mo, and C. Y. Yang. 2002. “Full-scale tests on rectangular hollow bridge piers.” Mater. Struct. 35 (2): 117–125. https://doi.org/10.1007/BF02482111.
Zahn, F. A., R. Park, and M. J. N. Priestley. 1990. “Flexural strength and ductility of circular hollow reinforced concrete columns without confinement on inside face.” ACI Struct. J. 87 (2): 156–166.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 144 • Issue 9 • September 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Aug 30, 2017
Accepted: Mar 28, 2018
Published online: Jul 4, 2018
Published in print: Sep 1, 2018
Discussion open until: Dec 4, 2018
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.