Investigation of Concrete Haunched T‐Beams under Shear
Publication: Journal of Structural Engineering
Volume 114, Issue 4
Abstract
Haunched beams are used in building construction for architectural and sometimes economical reasons. The American and British codes do not give any formulas for the design of haunched beams under shear. However, the German DIN code and some other European codes give a formula for calculating the equivalent shear stress. A formula is proposed by the writer, which gives the ultimate shear force of reinforced‐concrete haunched beams under shear in terms of concrete strength, stirrups contribution, and dowel action. The proposed formula is a modification of the American Concrete Institute (ACI) code expression for shear design. The modification takes into account the angle of haunch inclination and the dowel contribution. Ten beams of T‐cross section and different haunch inclinations were tested, and analyzed using the proposed formula to test its suitability for each beam. The correlation of results was satisfactory.
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References
1.
“Building code requirements for reinforced concrete.” (1983). ACI 318‐83, American Concrete Institute, Committee 318, Detroit, Mich., 102 pp.
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“Code of practice for the structural use of concrete.” (1972). CP 110, British Standards Institution, London, England, 439 pp.
3.
Debaiky, S. Y., and El‐Niema, E. I. (1982). “Behavior and strength of R.C. haunched beams in shear.” J. Am. Conor. Inst., 79(3), 184–194.
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El‐Niema, E. I. (1985). “Reinforced concrete haunched beams under shear.” Presented at Symposium on Concrete 1985, held at Brisbane, Australia, Oct. 23–25, 1985, the Institution of Engineers, Australia.
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El‐Niema, E. I., and Debaiky, S. Y. (1981). “Study of R.C. haunched beams under shear.” Report No. CE 1/1402, Research Centre, College of Engineering, University of Riyadh, Riyadh, Saudi Arabia, 84 pp.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 114 • Issue 4 • April 1988
Pages: 917 - 930
Copyright
Copyright © 1988 ASCE.
History
Published online: Apr 1, 1988
Published in print: Apr 1988
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