Torsion Tests of R/C Beams With Large Openings
Publication: Journal of Structural Engineering
Volume 109, Issue 8
Abstract
An experimental investigation to study reinforced concrete beams with large rectangular openings under pure torsion is reported. The beams were rectangular in cross section. Beam dimensions, and the amount and arrangement of reinforcement were held constant, but opening sizes and their locations were varied. Test results of ten beams are presented and discussed. Torsional strength and stiffness of a beam decrease with increasing opening length or depth, but appear to be marginally influenced by its eccentricity. The beams fail by the formation of a mechanism with four hinges, one at each corner of the opening. Good predictions of the ultimate torque can be obtained by using the theoretical model proposed by the writers in a companion paper.
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References
1.
ACI Committee 318, “Building Code Requirements for Reinforced Concrete,” American Concrete Institute, Detroit, Mich., 1977, pp. 318–77.
2.
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3.
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4.
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5.
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6.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 109 • Issue 8 • August 1983
Pages: 1780 - 1791
Copyright
Copyright © 1983 ASCE.
History
Published online: Aug 1, 1983
Published in print: Aug 1983
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