Browse > Article
http://dx.doi.org/10.12989/sem.2014.49.6.673

Strengthening of RC beams with prefabricated RC U cross-sectional plates  

Demir, Ali (Department of Civil Engineering, Celal Bayar University)
Tekin, Muhammed (Department of Civil Engineering, Celal Bayar University)
Turali, Tezcan (Department of Civil Engineering, Celal Bayar University)
Bagci, Muhiddin (Department of Civil Engineering, Celal Bayar University)
Publication Information
Structural Engineering and Mechanics / v.49, no.6, 2014 , pp. 673-685 More about this Journal
Abstract
The topic of this study is to strengthen cracked beams with prefabricated RC U cross-sectional plates. The damaged beams were repaired by epoxy based glue. The repaired beams were strengthened using prefabricated plates. The strengthening plates were bonded to the bottom and side faces of the beams by anchorage rods and epoxy. The strengthened beams were incrementally loaded up to maximum load capacities. The experimental results were satisfactory since the load carrying capacities of damaged beams were increased approximately 76% due to strengthening. It was observed that strengthening plates had a dominant effect on the performance of beams in terms of both the post-elastic strength enhancement and the ductility. The experimental program was supported by a three-dimensional nonlinear finite element analysis. The experimental results were compared with the results obtained from the beam modeled with ANSYS finite element program.
Keywords
prefabricated RC plate; strengthening; load carrying capacity; ductility; epoxy; anchorage rod; ANSYS;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Buyukozturk, O. and Karaca, E. (2002), "Characterization and modeling of debonding in RC beams strengthened with FRP composites", Proceedings of 15.ASCE Engineering Mechanics Conference, Columbia University, New York, June.
2 Ceroni, F. (2010), "Experimental performances of RC beams strengthened with FRP materials", Constr. Build. Mater., 24, 1547-1559.   DOI
3 Pham, H., Al-Mahaidi, R. and Sauma, V. (2006), "Modeling of CFRP concrete bond using smeared and discrete cracks", Compos. Struct., 75, 145-150.   DOI
4 Hognestad, E. (1951), "A study of combined bending and axial load in RC members", Univ. Illinois Eng. Exp. Stat. Bull, 399(2), 36-57.
5 Lu, X.Z., Teng, J.G., Ye, L.P. and Jiang, J.J. (2005) "Bond-slip models for FRP sheets/plates bonded to concrete", Eng. Struct., 27(6), 920-937.   DOI   ScienceOn
6 Raval, S.S. and Dave, U.V. (2013), "Effectiveness of various methods of jacketing for RC beams", Procedia Engineering, 51, 230-239.   DOI
7 Su, R.K.L., Siu, W.H. and Smith, S.T. (2010), "Effects of bolt plate arrangements on steel plate strengthened reinforced concrete beams", Eng. Struct., 32, 1769-1778.   DOI
8 Swamy, R.N., Jones, R. and Bloxham, J.W. (1987), "Structural behaviour of reinforced concrete beams strengthened by epoxy-bonded steel plates", Struct. Eng., 65(2), 59-68.
9 Willam, K.J. and Warnke, E.P. (1974), "Constitutive model for triaxial behavior of concrete", Proceedings of the International Association of Bridge and Structural Engineering Conference, 174-191.
10 Zhu, Y. and Su, R.K.L. (2010), "Behavior of strengthened reinforced concrete coupling beams by bolted steel plates, Part 2: evaluation of theoretical strength", Struct. Eng. Mech., 34(5), 563-580.   DOI
11 Adhikary, B.B. and Mutsuyoshi, H. (2006), "Shear strengthening of RC beams with web-bonded continuous steel plates", Constr. Build. Mater., 20, 296-307.   DOI   ScienceOn
12 Altun, F. (2004), "An experimental study of the jacketed reinforced-concrete beams under bending", Constr. Build. Mater., 18, 611-618.   DOI
13 ANSYS (2007), "Finite element computer program. Version 11", ANSYS, Inc, Canonsburg (PA).
14 Arslan, G., Sevuk, F. and Ekiz, I. (2008), "Steel plate contribution to load-carrying capacity of retrofitted RC beams", Constr. Build. Mater., 22, 143-153.   DOI   ScienceOn
15 Aykac, S., Kalkan, I. and Uysal, A. (2012), "Strengthening of reinforced concrete beams with epoxy-bonded perforated steel plates", Struct. Eng. Mech., 44(6), 735-751.   DOI
16 Boukhezar, M., Samai, M.L., Mesbah, H.A. and Houari, H. (2013), "Flexural behaviour of reinforced lowstrength concrete beams strengthened with CFRP plates", Struct. Eng. Mech., 47(6), 819-838.   DOI   ScienceOn
17 Buyukkaragoz, A. (2010), "Finite element analysis of the beam strengthened with prefabricated reinforced concrete plate", Sci. Res. Essays, 5(6), 533-544.
18 Panda, K.C., Bhattacharyya, S.K. and Barai, S.V. (2012), "Shear behaviour of RC T-beams strengthened with U-wrapped GFRP sheet", Steel Compos. Struct., 12(2), 149-166.   DOI