Three-Dimensional Finite-Element Analysis of FRP-Confined Circular Concrete Columns under Eccentric Loading
Publication: Journal of Composites for Construction
Volume 21, Issue 4
Abstract
Fiber-reinforced polymer (FRP) jacketing/wrapping has become a widely accepted technique for strengthening/retrofitting reinforced concrete (RC) columns. Although extensive research has been conducted on FRP-confined concrete columns under concentric compression, leading to many stress–strain models, the applicability of these concentric-loading models in the analysis of columns under eccentric loading has not been properly clarified. This paper presents the development and application of a reliable three-dimensional (3D) finite element (FE) approach for an in-depth investigation into this problem. In the proposed FE approach, an accurate plastic-damage model recently developed by the authors’ group for concrete under a general state of multiaxial compression is employed. The accuracy of the proposed FE approach is demonstrated through comparisons with available tests. Numerical results from the verified FE approach are then presented to gain an improved understanding of the behavior of confined concrete in such columns (e.g., distributions of axial stresses and confining pressures), leading to the conclusion that the direct use of a concentric-loading stress–strain model in the analysis of an eccentrically-loaded column may lead to significant errors.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The authors are grateful for the financial support received from the Research Grants Council of the Hong Kong Special Administrative Region (Project Nos. PolyU 5262/12 and PolyU 5252/13E).
References
ABAQUS version 6.10 [Computer software]. Dassault Systèmes, Waltham, MA.
ABAQUS version 6.5 [Computer software]. Dassault Systèmes, Waltham, MA.
ACI (American Concrete Institute). (2008). “Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures.” ACI 440–08, Farmington Hills, MI.
Bažant, Z. P., and Becq-Giraudon, E. (2002). “Statistical prediction of fracture parameters of concrete and implications for choice of testing standard.” Cem. Concr. Res., 32(4), 529–556.
Binici, B. (2008). “Design of FRPs in circular bridge column retrofits for ductility enhancement.” Eng. Struct., 30(3), 766–776.
Binici, B., and Mosalam, K. M. (2007). “Analysis of reinforced concrete columns retrofitted with fiber reinforced polymer lamina.” Compos. Part B. Eng., 38(2), 265–276.
Bisby, L., and Ranger, M. (2010). “Axial-flexural interaction in circular FRP-confined reinforced concrete columns.” Constr. Build. Mater., 24(9), 1672–1681.
CEB-FIP (Comité Euro-International du Béton-Fédération Internationale du Béton). (1993). “Design of concrete structures.”, Thomas Telford, London.
Chinese Standard. (2010). “Technical code for infrastructure application of FRP composites.” GB-50608, China Planning Press, Beijing.
Csuka, B., and Kollár, L. P. (2011). “FRP-confined circular columns subjected to eccentric loading.” J. Reinf. Plast. Compos., 30(14), 1167–1178.
Csuka, B., and Kollár, L. P. (2012). “Analysis of FRP confined columns under eccentric loading.” Compos. Struct., 94(3), 1106–1116.
EI Maaddawy, T. (2008). “Behavior of corrosion-damaged RC columns wrapped with FRP under combined flexural and axial loading.” Cem. Concr. Compos., 30(6), 524–534.
El Sayed, M., and El Maaddawy, T. (2011). “Analytical model for prediction of load capacity of RC columns confined with CFRP under uniaxial and biaxial eccentric loading.” Mater. Struct., 44(1), 299–311.
Fam, A., Flisak, B., and Rizkalla, S. (2003). “Experimental and analytical modeling of concrete-filled fiber-reinforced polymer tubes subjected to combined bending and axial loads.” ACI Struct. J., 100(4), 499–509.
Fitzwilliam, J., and Bisby, L. A. (2010). “Slenderness effects on circular CFRP confined reinforced concrete columns.” J. Compos. Constr., 280–288.
Ghali, K., Rizkalla, S., Kassem, M., Fawzy, T., and Mahmoud, M. (2003). “FRP-confined circular columns under small eccentric loading.” Proc., 5th Alexandria Int. Conf. on Structural and Geotechnical Engineering (CD-ROM), Alexandria, Egypt.
Hadi, M. N. S. (2006a). “Behaviour of FRP wrapped normal strength concrete columns under eccentric loading.” Compos. Struct., 72(4), 503–511.
Hadi, M. N. S. (2006b). “Comparative study of eccentrically loaded FRP wrapped columns.” Compos. Struct., 74(2), 127–135.
Hadi, M. N. S. (2007). “The behaviour of FRP wrapped HSC columns under different eccentric loads.” Compos. Struct., 78(4), 560–566.
Hadi, M. N. S., and Widiarsa, I. B. R. (2012). “Axial and flexural performance of square RC columns wrapped with CFRP under eccentric loading.” J. Compos. Constr., 640–649.
Hollaway, L. C., and Teng, J. G. (2008). Strengthening and rehabilitation of civil infrastructures using fibre-reinforced polymer (FRP) composites, Woodhead Publishing, Cambridge, U.K.
Hordijk, D. A. (1991). “Local approach to fatigue of concrete.” Ph.D. thesis, Delft Univ. of Technology, Delft, Netherlands.
Hu, B., Wang, J. G., and Li, G. Q. (2011). “Numerical simulation and strength models of FRP-wrapped reinforced concrete columns under eccentric loading.” Constr. Build. Mater., 25(5), 2751–2763.
Jendele, L., and Cervenka, J. (2006). “Finite element modelling of reinforcement with bond.” Comput. Struct., 84(28), 1780–1791.
Jiang, J. F., and Wu, Y. F. (2014). “Characterization of yield surfaces for FRP-confined concrete.” J. Eng. Mech., .
Jiang, T. (2008). “FRP-confined RC columns: Analysis, behavior and design.” Ph.D. thesis, Dept. of Civil and Structural Engineering, Hong Kong Polytechnic Univ., Hong Kong, China.
Jiang, T., and Teng, J. G. (2007). “Analysis-oriented stress-strain models for FRP-confined concrete.” Eng. Struct., 29(11), 2968–2986.
Jiang, T., and Teng, J. G. (2012a). “Slenderness limit for short FRP-confined circular RC columns.” J. Compos. Constr., 650–661.
Jiang, T., and Teng, J. G. (2012b). “Theoretical model for slender FRP-confined circular RC columns.” Constr. Build. Mater., 32(4), 66–76.
Jiang, T., and Teng, J. G. (2013). “Behavior and design of slender FRP-confined circular RC columns.” J. Compos. Constr., 443–453.
Jiang, T., Zhang, X. Q., Yao, J., and Luo, Y. Z. (2014). “Stress-strain behaviour of FRP-confined concrete subjected to eccentric compression.” Proc., 13th Int. Symp. on Structural Engineering (ISSE-13), Hefei Univ. of Technology, Hefei, China.
Kabir, M. Z., and Shafei, E. (2012). “Plasticity modeling of FRP-confined circular reinforced concrete columns subjected to eccentric axial loading.” Compos. Part B. Eng., 43(8), 3497–3506.
Kupfer, H., Hilsdorf, H. K., and Rusch, H. (1969). “Behavior of concrete under biaxial stresses.” ACI J., 66(8), 656–666.
Lam, L., and Teng, J. (2004). “Ultimate condition of fiber reinforced polymer-confined concrete.” J. Compos. Constr., 539–548.
Lee, J., and Fenves, G. L. (1998). “Plastic-damage model for cyclic loading of concrete structures.” J. Eng. Mech., 892–900.
Li, J., and Hadi, M. N. S. (2003). “Behaviour of externally confined high-strength concrete columns under eccentric loading.” Compos. Struct., 62(2), 145–153.
Lubliner, J., Oliver, J., Oller, S., and Onate, E. (1989). “A plastic-damage model for concrete.” Int. J. Solids Struct., 25(3), 299–326.
Mazzucco, G., Salomoni, V., Majorana, C., Pellegrino, C., and Ceccato, C. (2016). “Numerical investigation of concrete columns with external FRP jackets subjected to axial loads.” Constr. Build. Mater., 111, 590–599.
Mosalam, K. M., Talaat, M., and Binici, B. (2007). “A computational model for reinforced concrete members confined with fiber reinforced polymer lamina: Implementation and experimental validation.” Compos. Part B. Eng., 38(5), 598–613.
Mostofinejad, D., Moshiri, N., and Mortazavi, N. (2015). “Effect of corner radius and aspect ratio on compressive behavior of rectangular concrete columns confined with CFRP.” Mater. Struct., 48(1–2), 107–122.
Parvin, A., and Wang, W. (2001). “Behavior of FRP jacketed concrete columns under eccentric loading.” J. Compos. Constr., 146–152.
Scott, B. D., Park, R., and Priestley, M. J. N. (1982). “Stress-strain behavior of concrete confined by overlapping hoops at low and high strain rates.” ACI J., 79(2), 13–27.
Tao, Z., Teng, J. G., Han, L. H., and Lam, L. (2004). “Experimental behaviour of FRP-confined slender RC columns under eccentric loading.” Proc., Advanced Polymer Composites for Structural Applications in Construction (ACIC 2004), L .C. Hollaway, M. K. Chryssanthopoulos, and S. S. J. Moy, eds., Woodhead Publishing Limited, Cambridge, U.K.
Teng, J., Xiao, Q., Yu, T., and Lam, L. (2015). “Three-dimensional finite element analysis of reinforced concrete columns with FRP and/or steel confinement.” Eng. Struct., 97, 15–28.
Teng, J. G., Chen, J. F., Smith, S. T., and Lam, L. (2002). FRP strengthened RC structures, Wiley, West Sussex, U.K.
Teng, J. G., Huang, Y. L., Lam, L., and Ye, L. P. (2007). “Theoretical model for fiber-reinforced polymer-confined concrete.” J. Compos. Constr., 201–210.
Teng, J. G., and Lam, L. (2004). “Behavior and modeling of fiber reinforced polymer-confined concrete.” J. Struct. Eng., 1713–1723.
Wu, Y. F., and Jiang, C. (2013). “Effect of load eccentricity on the stress-strain relationship of FRP-confined concrete columns.” Compos. Struct., 98, 228–241.
Yu, T., Teng, J. G., Wong, Y. L., and Dong, S. L. (2010a). “Finite element modeling of confined concrete—I: Drucker–Prager type plasticity model.” Eng. Struct., 32(3), 665–679.
Yu, T., Teng, J. G., Wong, Y. L., and Dong, S. L. (2010b). “Finite element modeling of confined concrete—II: Plastic-damage model.” Eng. Struct., 32(3), 680–691.
Yu, T., Wong, Y. L., and Teng, J. G. (2010c). “Behavior of hybrid FRP-concrete-steel double-skin tubular columns subjected to eccentric compression.” Adv. Struct. Eng., 13(5), 961–974.
Yuan, X. F., Xia, S. H., Lam, L., and Smith, S. T. (2008). “Analysis and behaviour of FRP-confined short concrete columns subjected to eccentric loading.” J. Zhejiang Univ. Sci. A, 9(1), 38–49.
Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 21 • Issue 4 • August 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: May 23, 2016
Accepted: Sep 13, 2016
Published online: Jan 27, 2017
Discussion open until: Jun 27, 2017
Published in print: Aug 1, 2017
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.