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http://dx.doi.org/10.12989/cac.2015.16.3.399

Prediction of curvature ductility factor for FRP strengthened RHSC beams using ANFIS and regression models  

Komleh, H. Ebrahimpour (Civil Engineering Department, Faculty of Engineering, Shahid Bahonar University of Kerman)
Maghsoudi, A.A. (Civil Engineering Department, Faculty of Engineering, Shahid Bahonar University of Kerman)
Publication Information
Computers and Concrete / v.16, no.3, 2015 , pp. 399-414 More about this Journal
Abstract
Nowadays, fiber reinforced polymer (FRP) composites are widely used for rehabilitation, repair and strengthening of reinforced concrete (RC) structures. Also, recent advances in concrete technology have led to the production of high strength concrete, HSC. Such concrete due to its very high compression strength is less ductile; so in seismic areas, ductility is an important factor in design of HSC members (especially FRP strengthened members) under flexure. In this study, the Adaptive Neuro-Fuzzy Inference System (ANFIS) and multiple regression analysis are used to predict the curvature ductility factor of FRP strengthened reinforced HSC (RHSC) beams. Also, the effects of concrete strength, steel reinforcement ratio and externally reinforcement (FRP) stiffness on the complete moment-curvature behavior and the curvature ductility factor of the FRP strengthened RHSC beams are evaluated using the analytical approach. Results indicate that the predictions of ANFIS and multiple regression models for the curvature ductility factor are accurate to within -0.22% and 1.87% error for practical applications respectively. Finally, the effects of height to wide ratio (h/b) of the cross section on the proposed models are investigated.
Keywords
high strength concrete; FRP composites; multiple regression analysis; ANFIS; ductility;
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Times Cited By KSCI : 3  (Citation Analysis)
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1 Lee, H.J. (2013), "Predictions of curvature ductility factor of doubly reinforced concrete beams with high strength materials", Comput. Concrete., 12 (6), 831-850.   DOI
2 Lignola, G.P., Prota, A., Manfredi, G. and Gosenza, E. (2007), "Experimental performance of RC hollow columns confined with CFRP", J. Compos. Constr., 11(1), 42-49.   DOI   ScienceOn
3 Maghsoudi, A.A. and Akbarzadeh, H. (2006), "Flexural ductility of HSC members", Struct. Eng. Mech., 24(2), 195-212.   DOI
4 Malek, A.M., Saadatmanesh, H. and Ehsani, M.R. (1998), "Prediction of failure load of R/C beams strengthened with FRP plate due to stress concentration at the plate end", ACI. Struct. J., 95(2), 142-152.
5 Mashrei, M.A., Seracino, R. and Rahman, M.S. (2013), "Application of artificial neural networks to predict the bond strength ofFRP-to-concrete joints", Constr. Build. Mater., 40, 812-821.   DOI
6 Mohammadhassani, M., Nezamabadi-Pour, H., Jumaat, M., Jameel, M., Hakim, S.J.S. and Zargar, M. (2013), "Application of the ANFIS model in deflection prediction of concrete deep beam", Struct. Eng. Mech., 45(3),319-332.
7 Oehlers, D.J. (2001), "Development of design rules for retrofitting by adhesive bonding or bolting either FRP or steel plates to RC beams or slabs in bridges and building", Compos. Part. A. - Appl. S., 32(9), 1345-1355.   DOI
8 Oztekin, E., Pul, S. and Husem, M. (2003), "Determination of rectangular stress block parameters for high perfonuance concrete", Eng Struct, 25(3), 371-376.   DOI   ScienceOn
9 Park R. and Paulay, T. (1975), Reinforced Concrete Structure, John Wiley and Sons, New York, USA.
10 Rasheed, H.A., Charkas, H. and Melhem, H. (2004), "Simplified nonlinear analysis of strengthened concrete beams based on a rigorous approach", J. Struct. Eng., 130(7), 1087-1096.   DOI
11 Rashid, M.A., Mansur, M.A. and Paramasivam, P. (2002), "Correlations between mechanical properties of high-strength concrete", J. Mater. Civil. Eng., 14(3),230-238.   DOI   ScienceOn
12 Rashid, M.A. and Mansur, M.A. (2005), "Reinforced high-strength concrete beams in flexure", ACI. Struct. J., 102(3), 462-471.
13 Teng, J.G., Chen, J.F., Smith, S.T. and Lam, L. (2002), FRP strengthened RC structures, Wiley, New York, USA.
14 Toutanji, H., Zhao, L. and Zhang, Y. (2006), "Flexural behavior of reinforced concrete beams externally strengthened with CFRP sheets bonded with an inorganic matrix", Eng. Struct., 28(4), 557-566.   DOI
15 Xiong, G.J., Yang, J.Z. and Ji, Z.B. (2004), "Behavior of reinforced concrete beams strengthened with externally bonded hybrid carbon fiber-glass fiber sheets", J. Compos. Constr., 275-278.
16 Amini, J. and Moeini, R. (2012), "Prediction of shear strength of reinforced concrete beams using adaptive neuro-fuzzy inference system and artificial neural network", Sci. Iran. Trans. A., 19(2), 242-248.   DOI   ScienceOn
17 ACI 363R. (2010), State-of-the-art report on high-strength concrete, American Concrete Institute, Detroit.
18 ACI 440.2R. (2008), Guide for the design and construction of externally bonded FRP systems for strengthening concrete structures, American Concrete Institute, Farmington Hills, Michigan.
19 Akbarzadeh, H. and Maghsoudi, A.A. (2010), "Experimental and analytical investigation of reinforced high strength concrete continuous beams strengthened with fiber reinforced polymer", Mater. Design., 31(3), 1130-1147.   DOI
20 CAN3-A23.3 (1994), Design of Concrete Structure for Buildings (CAN3-A23.3-M94), Canadian Standards Association (CSA), Rexdale, Ontario.
21 Cevik, A. (2011), "Modeling strength enhancement of FRP confined concrete cylinders using soft computing", Expert. Syst Appl., 38(5), 5662-5673.   DOI
22 Chahrour, A. and Soudki, K. (2005), "Flexural response of reinforced concrete beams strengthened with end-anchored partially bonded carbon fiber-reinforced polymer strips", J. Compos. Construct., 9(2), 170-177   DOI
23 Collins, M.P. and Porasz, A. (1989), "Shear design for high-strength concrete", Comite Euro-International du Beton, Bulletin d'Information, 193, 77-83.
24 Ebrahimpour Komleh, H. and Maghsoudi, A.A. (2013), "Analytical Investigation on Ductility of CFRP/GFRP Strengthened RHSC Beams", Proceedings of the 4th International Conference on Concrete and Development, Tehran, Iran, April.
25 Foret, G. and Limam, O. (2008), "Experimental and numerical analysis of RC two-way slabs strengthened with NSM CFRP rods", Constr. Build. Mater., 22(10), 2025-2030.   DOI
26 Gu, Z.Q. and Oyadiji, S.O. (2008), "Application of MR damper in structural control using ANFIS method", Comput. Struct., 86(3-5), 427-436.   DOI
27 Hashemi, S.H., Maghsoudi, A.A., and Rahgozar, R. (2009), "Bending response of HSRC beams strengthened with FRP sheets", Sci. Iran. Trans. A., 16(2), 138-146.
28 Jang, J.S.R., Sun, C. T., and Mizutani, E. (1997), Neuro-fuzzy and soft computing. Computational approach to learning and machine intelligence, Prentice Hall.