Experimental Investigation on the Effect of Bond-Slip Behaviour of Steel Rebars in Concrete
Praveen Kumar.T.H, P.G-STUDENT/VALLIAMMAI ENGINEERING COLLEGE; Mrs. T. Swedha ,ASSISTANT PROFESSOR/VALLAIMMAI ENGINEERING COLLEGE; Dr. A. R. Santhakumar ,IIT MADRAS/FORMER EMERITUS PROFESSOR
Bond strength, Slip, Ribbed bars, RILEM, Reinforced concrete, Rib geometry, Flexure
This paper investigates about the Bond-Slip behaviour of steel rebars in reinforced concrete for Plain and Ribbed reinforcing bars. Bond strength is influenced by the rib pattern of the bar and RILEM suggested some recommendations to increase the bond strength of the concrete. Two grades of concrete M25 and M30 were casted. A total of eight specimens were casted using 25mm bar. The bond stress-slip response was studied. Graphical comparisons were done between the Load vs Slip and Load vs Displacement for RILEM standards. Slip was measured using LVDT at both ends. Ribbed bars showed better bond strength compared to plain bars and bond strength obtained from both tests produced same results.
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[1] Appa Rao G., Faiz Sultana., and Pandurangan K., “Bond strength and bond stress slip response in reinforced concrete”, Journal of Structural Engineering, Vol. 36, No. 5, Dec 2009-Jan 2010, pp. 347-353.
[2] Ana Lúcia H. de C. El Debs (2007), “Theoretical and numerical approach of the bond behavior in beam tests using self-compacting and ordinary concrete”, Escola de Engenharia de São Carlos – EESC”.
[3] F. M. Ameida Filh (2006), “Pull-out behavior of deformed bars using high strength self-compacting concrete and high strength ordinary concrete”, IBRACON Structural Journal, Volume 2, Number 1
[4] John N. Karadelis, Yougui Lin,(2015) “Flexural Strengths And Fibre Efficiency Of Steel-Fibre-Reinforced, Roller-Compacted, Polymer Modified Concrete” Construction And Building Materials “93 (2015) 498–505.
[5] K. Pandurangan, G. Appa Rao (2012) “Bond strength of epoxy coated bar splices confined with nominal lateral reinforcement”, Central European Journal of Engineering
[6] Krishnamurthy Pandurangan( 2013), “ Effect of fusion bonded epoxy coating and rib geometry on the bond strength of reinforced concrete” The Indian Concrete Journal January edition Pg No: 33 to 43
[7] M. K. El Debs, A.L.H.C. EL Debs, (2013), “Numerical approach of the bond stress behavior of steel bars embedded in self-compacting concrete and in ordinary concrete using beam models”, IBRACON Structural Journal, Volume 6,number 3 Pg No 499 to 512
[8] Indian standard code of practice titled Recommended guidelines for concrete mix design, IS 10262 : 1982. Bureau of Indian Standards, New Delhi.
[9] Indian standard code of practice titled “Specification for coarse and fine aggregates from natural sources for concrete”. IS: 383 – 1970. Bureau of Indian Standards, New Delhi
[10] Indian standard code of practice titled “Specification for 53 Grade Ordinary Portland Cement”. IS: 12269-1987, Bureau of Indian Standards, New Delhi
[11] RILEM-FIP-CEB. Bond test for reinforcing steel: 1-Beam test (7-II-28 D). 2-Pull-out test (7-II-128): Tentative recommendations. RILEM Journal Materials and Structures, Vol. 6, No. 32, April-March, 1973.
Paper ID: GRDJEV01I040122
Published in: Volume : 1, Issue : 4
Publication Date: 2016-04-01
Page(s): 24 - 30
Published in: Volume : 1, Issue : 4
Publication Date: 2016-04-01
Page(s): 24 - 30