Torsion in Beams Reinforced with Bars and Fibers
Publication: Journal of Structural Engineering
Volume 112, Issue 1
Abstract
An experimental investigation carried out to assess the effect of incorporating steel fibers on the torsional behavior of conventionally reinforced beams is reported. The study involved testing 24 beams, with partial or full replacement of longitudinal steel reinforcement and/or stirrups by an equivalent volume fraction of steel fibers. The tests revealed that the loads on first cracking observed on fiber‐reinforced beams were substantially higher than those obtained in similar beams with conventional reinforcement. Increases of up to 60% in the torsional capacity of beams were observed, when the stirrups were partially or fully replaced by an equivalent volume fraction of fibers.
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References
1.
Bach, C., and Graf, O., “Versuche über die Widerstands Fahigkeit von Beton und Eisenboten gegen Verdrehung,” Deutsche Ausschuss für Eisenboten, Heft 16, Wilhelm Ernst, Berlin, Germany, 1912.
2.
Batson, G., Terry, T., and Chang, M. S., “Fibre‐Reinforced Concrete Beams Subjected to Bending and Torsion,” ACI Special Publication SP81, Paper SP81‐3, International Symposium on Fiber‐Reinforced Concrete, American Concrete Institute, Detroit, MI, 1984, pp. 51–68.
3.
Craig, R. J., Dunya, S., Riaz, J., and Shirazi, H., “Torsional Behavior of Fibrous Concrete Beams,” ACI Special Publication SP81, Paper 81‐2, International Symposium on Fiber‐Reinforced Concrete, American Concrete Institute, Detroit, MI, 1984, pp. 17–49.
4.
Graf, O., and Morsche, E., “Verdrehungsversuche zür Klärung der Schubfestigkeit von Eisenboten,” Forschungsarbeiten auf den Gebeite des Ingenieurwesens herausgegeben von Verein Deutscher Ingenieure, Heft 258, Julius Springer, Berlin, Germany, 1922, 52 pp.
5.
Hsu, T. T. C., “Torsion of Structural Plain Concrete Rectangular Sections,” ACI Special Publication SP18, American Concrete Institute, Detroit, MI, 1968, pp. 203–238.
6.
Hsu, T. T. C., “Torsion of Structural Concrete: Behaviour of Reinforced Concrete Rectangular Members,” ACI Special Publication SP18, American Concrete Institute, Detroit, MI, 1968, pp. 261–306.
7.
Jindal, R. L., “Shear and Moment Capacities of Steel Fibre Reinforced Concrete Beams,” ACI Special publication SP81, Paper 81‐1, International Symposium on Fiber‐Reinforced Concrete, American Concrete Institute, Detroit, MI, 1984, pp. 1–16.
8.
Kareem‐Palanjian, A. S., “Torsion in Fibre‐Concrete Beams,” thesis presented to the Univ. of Wales, at Cardiff, Wales, in 1984, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
9.
Mansur, M. A., and Paramasivam, P., “Steel Fibre Reinforced Concrete Beams in Pure Torsion,” International Journal of Cement Composites and Lighweight Concrete, Vol. 4, No. 1, Feb., 1982, pp. 39–45.
10.
Mansur, M. A., and Paramasivam, P., “Fibre Reinforced Concrete Beams in Torsion, Bending and Shear,” ACI Journal, Title No. 82‐2, Jan.–Feb., 1985, pp. 33–39.
11.
Mansur, M. A., “Bending‐Torsion Interaction for Concrete Beams Reinforced with Steel Fibres,” Magazine of Concrete Research, Vol. 34, No. 121, Dec., 1982, pp. 182–190.
12.
Miyamoto, T., “Torsional Strength of Reinforced Concrete,” Concrete and Constructional Engineering, Vol. 22, London, England, 1927, pp. 637–647.
13.
“Model Code for Concrete Structures,” CEB‐FIP Recommendations, 3rd ed., Comite Euro‐International Du Beton, Paris, France, Apr., 1978.
14.
Narayanan, R., and Green, K. R., “Fibre Reinforced Concrete Beams in Combined Bending and Torsion,” Indian Concrete Journal, Vol. 55, No. 8, Bombay, India, Aug., 1981, pp. 222–232.
15.
Narayanan, R., and Kareem‐Palanjian, A. S., “Factors Influencing the Workability of Steel‐Fibre Reinforced Concrete,” Concrete, Part I: Vol. 16, No. 10, London, England, Oct., 1982, pp. 45–48;
Part II: Vol. 17, No. 2, London, England, Feb., 1983, pp. 42–45.
16.
Narayanan, R., and Kareem‐Palanjian, A. S., “Steel Fibre Reinforced Concrete Beams in Torsion,” International Journal of Cement Composites and Lightweight Concrete, Vol. 5, No. 4, Nov., 1983, pp. 235–246.
17.
Narayanan, R., and Kareem‐Palanjian, A. S., “Torsion in Prestressed Concrete Beams Containing Steel Fibres,” International Journal of Cement Composites and Lightweight Concrete, Vol. 6, No. 2, May, 1984, pp. 81–91.
18.
Narayanan, R., and Kareem‐Palanjian, A. S., “A Space Truss Model for Fibre‐Concrete Beams in Torsion,” The Structural Engineer, Vol. 63‐B, London, England, Mar., 1985, pp. 14–19.
19.
Niyogi, S. K., and Dwarakanathan, G. I., “Fibre Reinforced Beams under Moment and Shear,” Journal of Structural Engineering, ASCE, Vol. 111, No. 3, Mar., 1985, pp. 516–527.
20.
“Specification for Aggregate from Natural Sources for Concrete,” BS882:1973, British Standards Institution, 1973.
21.
“Specification for Hot Rolled Steel Bars for the Reinforcement of Concrete,” BS4449:1978, British Standards Institution, 1978.
22.
“Specification for Ordinary and Rapid Hardening Portland Cement,” BS12:1978, British Standards Institution, 1978.
23.
Victor, D. J., and Muthukrishnan, R., “Effect of Stirrups on Ultimate Torque of Reinforced Concrete Beams,” ACI Journal, Vol. 70, No. 4, Apr., 1973, pp. 300–306.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 112 • Issue 1 • January 1986
Pages: 53 - 66
Copyright
Copyright © 1986 ASCE.
History
Published online: Jan 1, 1986
Published in print: Jan 1986
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