Behavior of FRP-Confined Reactive Powder Concrete Columns under Eccentric Loading


1 Department of Civil Engineering, University of Kurdistan, Sanandaj, Iran

2 Assistant professor, Faculty of Civil Engineering, University of Kurdistan, Sanandaj, Iran


Fiber reinforced Polymers (FRP) have widely used for the purposes of enhances strength and ductility of concrete columns. Proper design of such hybrid columns, however, requires a better recognition of the behavior of concrete columns confined with FRP. In this paper, the influence of FRP thickness, concrete compressive strength, and column size on the performance of eccentrically loaded reactive powder concrete (RPC) columns confined with FRP is investigated. In this regard, five different FRP thicknesses, three types of column sizes, and concrete compressive strength values ranging from 140 MPa to 180 MPa are considered. For this purpose, two-dimensional nonlinear finite element analyses are carried out so as to predict the behavior of FRP-confined RPC columns. OpenSees software is employed to analyze the considered columns. To validate finite element model, the numerical predictions are compared with the experimental data. The study, from a numerical point of view, derived some important relevant conclusions regarding the behavior of RPC columns confined with FRP.


[1] GangaRao, H.V.S., Taly, N., Vijay, P.V. (2007). “Reinforced Concrete Design with FRP Composites”. Englewood Cliffs, CRC Press, USA.
[2] Ma, R., Xiao, Y. (1999). “Seismic Retrofit and Repair of Circular Bridge Columns with Advanced Composite Materials”. Earthquake Spectra, Vol. 15, pp. 747-764.
[3] Pessiki, S., Harries, K.A., Kestner, J.T., Sause, R., Ricles, J.M. (2001). “Axial Behaviour of Reinforced Concrete Columns Confined with FRP Jackets”. Journal of Composites for Construction ASCE, Vol. 5, pp. 237-245.
[4] Karabinis, A.I., Rousakis, T.C. (2002). “Concrete Confined by FRP Material: A Plasticity Approach”. Engineering Structures, Vol. 24, pp. 923-932.
[5] Matthys, S., Toutanji, H., Audenaert, K., Taerwe, L. (2005). “Axial Load Behavior of Large-Scale Columns Confined with Fiber-Reinforced Polymer Composites”. ACI Structural Journal, Vol. 102, pp. 258-267.
[6] Wu, Y.F., Liu, T., Oehlers, D.J. (2006). “Fundamental Principles that Govern Retrofitting of Reinforced Concrete Columns by Steel and FRP Jacketing”. Advances in Structural Engineering, Vol. 9, 507-33.
[7] Wong, Y.L., Yu, T., Teng, J.G., Dong, S.L. (2008). “Behavior of FRP-Confined Concrete in Annular Section Columns”. Composites Part B: Engineering, Vol. 39, 451-466.
[8] Bouchelaghem, H., Bezazi, A., Scarpa F. (2011). “Compressive Behaviour of Concrete Cylindrical FRP-Confined Columns Subjected to a New Sequential Loading Technique”. Composites Part B: Engineering, Vol. 42, pp. 1987-1993.
[9] El-Hacha, R., Abdelrahman, K. (2013). “Slenderness Effect of Circular Concrete Specimens Confined with SFRP Sheets”. Composites Part B: Engineering, Vol. 44, pp. 152-166.
[10] Morin, V., Cohen-Tenoudji, F., Feylessoufi, A. (2002). “Evolution of the Capillary Network in a Reactive Powder Concrete during Hydration Process”. Cement and Concrete Research, Vol. 32, pp. 1907-1914.
[11] Dowd, W.M., Dauriac C.E., Adeline R. (1999). “Reactive Powder Concrete for Bridge Construction”. Proceedings of the 5th ASCE Materials Engineering Congress, Cincinnati, USA.
[12] Chan, Y.W., Chu, S.H. (2004). “Effect of Silica Fume on Steel Fiber Bond Characteristics in Reactive Powder Concrete”. Cement and Concrete Research, Vol. 34, pp. 1167-1172.
[13] Aïtcin, P.C. (2000). “Cements of Yesterday and Today Concrete of Tomorrow”. Cement and Concrete Research, Vol. 30, pp. 1349-1359.
[14] Lee, I. (2002). “Complete Stress-Strain Characteristics of High Performance Concrete”. PhD thesis, New Jersey Institute of Technology, New Jersey, USA.
[15] Ho, J.C.M., Lam, J.Y.K., Kwan, A.K.H. (2010). “Effectiveness of Adding Confinement for Ductility Improvement of High-Strength Concrete Columns”. Engineering Structures, Vol. 32, pp. 714-725.
[16] Abdelouahed, T. (2006). “Improved Theoretical Solution for Interfacial Stresses in Concrete Beams Strengthened with FRP Plate”. International Journal of Solids and Structures, Vol. 43, pp. 4154-4174.
[17] Parvin, A., Jamwal, A.S. (2006). “Performance of Externally FRP Reinforced Columns for Changes in Angle and Thickness of the Wrap and Concrete Strength”. Composite Structures, Vol. 73, pp. 451-457.
[18] Jiang, J.F., Wu, Y.F. (2012). “Identification of Material Parameters for Drucker-Prager Plasticity Model for FRP Confined Circular Concrete Columns”. International Journal of Solids and Structures, Vol. 49, pp. 445-456.
[19] Li, G., Kidane, S., Pang, S.S., Helms, J.E., Stubblefield, M.A. (2003). “Investigation into FRP Repaired RC Columns”. Composite Structures, Vol. 62, pp. 83-89.
[20] Elsanadedy, H.M., Al-Salloum, Y.A., Alsayed, S.H., Iqbal R.A. (2012). “Experimental and Numerical Investigation of Size Effects in FRP-Wrapped Concrete Columns”. Construction and Building Materials, Vol. 29, pp. 56-72.
[21] Issa, C.A., Chami, P., Saad, G. (2009). “Compressive Strength of Concrete Cylinders with Variable Widths CFRP Wraps: Experimental Study and Numerical Modeling”. Construction and Building Materials, Vol. 23, pp. 2306-2318.
[22] Yu, T., Teng, J.G., Wong, Y.L., Dong, S.L. (2010). “Finite Element Modeling of Confined Concrete-I: Drucker-Prager Type Plasticity Model”. Engineering Structures, Vol. 32, pp. 665-679.
[23] Hadi, M.N.S. (2003). “Behaviour of Wrapped HSC Columns under Eccentric Loads”. Asian Journal of Civil Engineering, Vol. 4, pp. 91-100.
[24] Hadi, M.N.S. (2006). “Behaviour of FRP Wrapped Normal Strength Concrete Columns under Eccentric Loading”. Composite Structures, Vol. 72, pp. 503-511.
[25] Hadi, M.N.S. (2009). “Behaviour of Eccentric Loading of FRP Confined Fibre Steel Reinforced Concrete Columns”. Construction and Building Materials, Vol. 23, pp. 1102-1108.
[26] Abbassi, M., Dabbagh, H. (2014). “Finite Element Analysis of Reactive Powder Concrete Columns Confined with CFRP”. International Journal of Civil Engineerng. (submitted)
[27] Mazzoni, S., McKenna, F., Scott, M.H., Fenves, G.L. (2007). “OpenSees Command Language Manual”. Pacific Earthquake Engineering Research Center, University of California, Berkeley, USA.
[28] Yalcin, C., Saatcioglu, M. (2000). “Inelastic Analysis of Reinforced Concrete Columns”. Computers and Structures, Vol. 77, pp. 539-555.
[29] Kwak, H.G., Kim, S.P. (2002). “Nonlinear Analysis of RC Beams Based on Moment- Curvature Relation”. Composite Structures, Vol. 80, pp. 615-628.
[30] Assan, A.E. (2002). “Nonlinear Analysis of Reinforced Concrete Cylindrical Shells”. Composite Structures, Vol. 80, pp. 2177-2184.
[31] Coronado, C.A., Lopez, M.M. (2006). “Sensitivity Analysis of Reinforced Concrete Beams Strengthened with FRP Laminates”. Cement and Concrete Composites, Vol. 28, pp. 102-114.
[32] Al-Amery, R., Al-Mahaidi, R. (2006). “Numerical Analysis of Multilayered CFRP Retrofitted RC Beams with Partial Interaction”. Composite Structures, Vol. 75, pp. 479-488.
[33] Malik, A.R., Foster, S.J. (2010). “Carbon Fiber-Reinforced Polymer Confined Reactive Powder Concrete Columns-Experimental Investigation”. ACI Structural Journal, Vol. 7, pp. 263-271.
[34] Almusallam, T.H. (2007). “Behavior of Normal and High-Strength Concrete Cylinders Confined with E-Glass/Epoxy Composite Laminates”. Composites Part B: Engineering, Vol. 38, pp. 629-39.
[35] Parvin, A., Jamwal, A.S. (2005). “Effects of Wrap Thickness and Ply Configuration on Composite-Confined Concrete Cylinders”. Composite Structures, Vol. 67, pp. 437-42.