Experimental and Computational Studies on High-Strength Concrete Circular Columns Confined by Aramid Fiber-Reinforced Polymer Sheets
Publication: Journal of Composites for Construction
Volume 13, Issue 2
Abstract
The aim of this paper is to study the properties of high-strength concrete (HSC) circular columns confined by aramid fiber-reinforced polymer (AFRP) sheets under axial compression. A total of 60 specimens were tested, considering the following parameters: the compressive strength of concrete, the number of AFRP layers, and the form of AFRP wrapping. In addition, an analytical model for predicting the stress–strain curves is proposed based on the experimental results. Meanwhile, a three-dimensional nonlinear finite-element model with a Drucker–Prager plasticity model for the concrete core and an elastic model for the AFRP is developed by using the finite-element code ANSYS. It is demonstrated that the strength and ductility of the columns with continuous AFRP wrapping are increased greatly; whereas the strength of the columns with discontinuous AFRP wrapping is also increased, but the ductility is not always increased notably. The analytical model and the finite-element model are validated against the experimental results.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The writers would like to acknowledge the financial support provided by the National Natural Science Foundation (NSF) of China under Grant No. NNSFC50378002 and the Science and Technology Programme for West Part Transportation Construction of the Ministry of Communications of China under Grant No. 200431800058. The support provided by Beijing Jiaotong University and China Railway Co. Laboratory for the experiment, and the contribution of AFRP materials from Shenzhen Ocean Power Engineering Technology Co., Ltd. are also gratefully acknowledged.
References
American Concrete Institute (ACI). (1984). “State of the art report on high strength concrete.” ACI 363R-84, ACI-363 Committee, Detroit.
American Concrete Institute (ACI). (2002). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” ACI-440, ACI-440 Committee, Detroit.
ANSYS Inc. Corporate. (2005). “The ANSYS 10.1 user documents.” ⟨http://www.ansys.com/services/documentation/index.htm⟩ (Nov. 2, 2007).
Canadian Standard Association (CSA). (2002). “Design and construction of building components with fibre-reinforced polymers.” CSA-S806-2002, CSA Rexdale BD, Toronto.
Candappa, D. C., Sanjayan, J. G., and Setunge, S. (2001). “Complete triaxial stress–strain curves of high-strength concrete.” J. Mater. Civ. Eng., 13(3), 209–215.
Guo, Z. H. (1999). Theory of reinforced concrete, Tsinghua University Press, Beijing (in Chinese).
He, L. F., and Pan, G. M. (2003). “An experimental investigation for the mechanical performance of KFRP confined concrete.” J. Exp. Mech., 18(4), 538–542 (in Chinese).
Lam, L., and Teng, J. G. (2003). “Design-oriented stress-strain model for FRP-confined concrete.” Constr. Build. Mater., 17(6), 471–489.
Li, G. Q. (2006). “Experimental study of FRP confined concrete cylinders.” Eng. Struct., 28(7), 1001–1008.
Malvar, L. J., Morrill, K. B., and Crawford, J. E. (2004). “Numerical modeling of concrete confined by fiber-reinforced composites.” J. Compos. Constr., 8(4), 315–322.
Ministry of Housing and Urban-Rural Development of the People’s Republic of China (MOHURD). (2006). “Technical standard for strengthening and rehabilitation.” GB50367-20063. China Architecture & Building Press, Beijing (in Chinese).
Mirmiran, A., Zagers, K., and Yuan, W. (2000). “Nonlinear finite element modeling of concrete confined by fiber composites.” Finite Elem. Anal. Design, 35(1), 79–96.
Mukherjee, A., Boothby, T. E., Bakis, C. E., Joshi, M. V., and Maitra, S. R. (2004). “Mechanical behavior of fiber-reinforced polymer-wrapped concrete columns—Complicating effects.” J. Compos. Constr., 8(2), 97–103.
Rochette, P., and Labossière, P. (1996). “A plasticity approach for concrete columns confined with composite materials.” Proc., Advanced Composite Materials in Bridges and Structures, Canadian Society for Civil Engineering, Montreal, Quebec, Canada, 359–366.
Saafi, M., Toutanji, H. A., and Li, Zongjin (1999). “Behavior of concrete columns confined with fiber reinforced polymer tubes.” ACI Mater. J., 96(4), 500–509.
Samaan, M., Mirmiran, A., and Shahawy, M. (1998). “Model of concrete confined by fiber composite.” J. Struct. Eng., 124(9), 1025–1031.
Shahawy, M., Mirmiran, A., and Beitelman, T. (2000). “Tests and modeling of carbon-wrapped concrete columns.” Composites, Part B, 31(6–7), 471–480.
Teng, J. G., Chen, J. F., and Lam, L. (2002). FRP-strengthened RC structures, John Wiley & Sons, London.
Toutanji, H. A., and Deng, Y. (2002). “Strength and durability performance of concrete axially loaded members confined with AFRP composite sheets.” Composites, Part B, 33(4), 251–261.
Xiao, Y., and Wu, H. (2000). “Compressive behavior of concrete confined by carbon fiber composite jackets.” J. Mater. Civ. Eng., 12(2), 139–146.
Yu, G. (2004). “Study on performance of circular column strengthened with AFRP sheets.” MS thesis, School of Civil Engineering, Harbin Institute of Technology, Harbin, China (in Chinese).
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 13 • Issue 2 • April 2009
Pages: 125 - 134
Copyright
© 2009 ASCE.
History
Received: Nov 1, 2007
Accepted: Oct 15, 2008
Published online: Apr 1, 2009
Published in print: Apr 2009
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.