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Journal of Zhejiang University SCIENCE A 2007 Vol.8 No.2 P.257~263

10.1631/jzus.2007.A0257


Strength and deformation characteristics of steel fibrous concrete beams


Author(s):  SINGH Bhupinder, SINGH S.P., KAUSHIK S.K.

Affiliation(s):  Department of Civil Engineering, Indian Institute of Technology, Roorkee 247 667, India; more

Corresponding email(s):   bhupifce@iitr.ernet.in, spsingh@nitj.ac.in

Key Words:  Analysis, Deformation, Strength, Steel Fibre Reinforced Concrete (SFRC), Toughness


SINGH Bhupinder, SINGH S.P., KAUSHIK S.K.. Strength and deformation characteristics of steel fibrous concrete beams[J]. Journal of Zhejiang University Science A, 2007, 8(14): 257~263.

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author="SINGH Bhupinder, SINGH S.P., KAUSHIK S.K.",
journal="Journal of Zhejiang University Science A",
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pages="257~263",
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publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2007.A0257"
}

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%T Strength and deformation characteristics of steel fibrous concrete beams
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%A KAUSHIK S.K.
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%P 257~263
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%I Zhejiang University Press & Springer

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T1 - Strength and deformation characteristics of steel fibrous concrete beams
A1 - SINGH Bhupinder
A1 - SINGH S.P.
A1 - KAUSHIK S.K.
J0 - Journal of Zhejiang University Science A
VL - 8
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SP - 257
EP - 263
%@ 1673-565X
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PB - Zhejiang University Press & Springer
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Abstract: 
The results of an analytical investigation of the flexural behaviour of steel Fibre Reinforced Concrete (SFRC) beams are presented. The complete response of the SFRC beams under displacement controlled static loading was obtained using nonlinear Finite Element (FE) techniques implemented with the help of ATENA 2D software. Issues relating to the behaviour of SFRC which have a direct bearing on the FE modelling are discussed with relevance to the software employed for the nonlinear analysis. Constitutive models amenable to numerical analysis for steel fibrous concrete are presented. The structural response throughout the loading regime was captured in terms of the load-deflection behaviour, which in addition to the post-peak response characterized the failure mode of the test beams. The crack patterns at crack initiation and at the end of the tests were also recorded. Experimental results from the specimens of two other investigators were used as control values for this investigation. The response of the specimens of this investigation was evaluated in terms of initial tangent stiffness, peak loads and toughness. Good match was obtained between the results from this investigation and corresponding experimentally obtained values, wherever available. The influence of the fibre content is reflected in the observed trends in peak loads, deflection at peak loads and toughness, which are in broad agreement with known behavioral patterns of SFRC.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Al-Tann, S.A., Ezzadeen, N.A., 1992. Non-Linear Finite Element Analysis of Steel Fibre Reinforced Members. In: Swamy, R.N. (Ed.), Fibre Reinforced Cement and Concrete. E & F N Spon, London, p.435-446.

[2] Bathe, K.J., 1996. Finite Element Procedures. Prentice-Hall of India Pvt. Ltd., New Delhi, p.1037.

[3] CEB-FIP Model Code, 1990. First Draft, Comite Euro-International du Beton, Bulletin d’information No. 195, 196, Mars.

[4] Hordijk, D.A., 1991. Local Approach to Fatigue of Concrete. Ph.D Thesis, Delft University of Technology, the Netherlands.

[5] Kupfer, H., Hilsdorf, H.K., Rusch, K., 1969. Behaviour of concrete under biaxial stress. Proceedings of ACI, 66(8):656-666.

[6] Lok, T., Pei, J., 1999. Flexural behaviour of steel fibre reinforced concrete. Journal of Materials in Civil Engineering, ASCE, 10(2):86-97.

[7] Mohammadi, Y., Kaushik, S.K., 2001. Steel Fibre Reinforced Concrete with Mixed Aspect Ratio. SEC-2001, Department of Civil Engineering, Phoenix Publishers, IIT Roorkee, p.326-334.

[8] Pillai, S.U., Menon, D., 1998. Reinforced Concrete Design. Tata McGrae-Hill Pub. Co. Ltd., New Delhi, p.762.

[9] Singh, S.P., Kaushik, S.K., 1999. Flexural Fatigue Behaviour of Steel Fibre Reinforced Concrete. CSIR Research Report, New Delhi, p.105.

[10] van Mier, J.G.M., 1986. Multi-Axial Strain Softening of Concrete Part 1: Fracture. In: Materials and Structures. RILEM.

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