Torsion of Concrete Beams with Large Openings
Publication: Journal of Structural Engineering
Volume 111, Issue 1
Abstract
The grid frame approach for analyzing reinforced concrete beams with large openings has been developed in this paper. In this approach, the beam with large web openings is visualized as a grid frame comprising two longitudinal stringers connected by posts between consecutive openings. For analyzing the grid frame, the twisting couple at each end of the beam is replaced by a statically equivalent system comprising two equal and opposite forces. The ultimate torsional strength computing using the grid frame approach has been compared with the observed ultimate strength of 25 specimens tested by the writers and other investigators.
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References
1.
Daniel, H. R., and McMullen, A. E., “Torsion in Reinforced Concrete Beams Containing an Opening,” Research Report No. CE72‐48, Department of Civil Engineering, The University of Calgary, Calgary, Canada, Dec., 1972.
2.
Nasser, K. W., Aeavalos, A., and Daniel, H. R., “Behaviour and Design of Large Openings in Reinforced Concrete Beams,” Proceedings, Journal of the American Concrete Institute, Vol. 64, No. 1, Jan., 1967, pp. 25–33.
3.
Venkappa, V., “Static and Dynamic Torsion of Normal and Lightweight Concrete,” thesis presented to The University of Rajasthan, at Jaipur, India, in 1983, in partial fulfillment of the requirements for the degree of Doctor of Engineering.
Information & Authors
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Published In
Journal of Structural Engineering
Volume 111 • Issue 1 • January 1985
Pages: 223 - 227
Copyright
Copyright © 1985 ASCE.
History
Published online: Jan 1, 1985
Published in print: Jan 1985
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