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Influence of inclined web reinforcement on reinforced concrete deep beams with web openings.
Yang, Keun-Hyeok Chung, H-S.
Yang, Keun-Hyeok
Chung, H-S.
Publication Date
2007-09
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© 2007 ACI. Reproduced in accordance with the publisher's self-archiving policy.
Peer-Reviewed
Yes
Open Access status
openAccess
Accepted for publication
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Department
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Abstract
This paper reports the testing of fifteen reinforced concrete deep beams with openings. All beams tested had the same overall geometrical dimensions. The main variables considered were the opening size and amount of inclined reinforcement. An effective inclined reinforcement factor combining the influence of the amount of inclined reinforcement and opening size on the structural behaviour of the beams tested is proposed. It was observed that the diagonal crack width and shear strength of beams tested were significantly dependent on the effective inclined reinforcement factor that ranged from 0 to 0.318 for the test specimens. As this factor increased, the diagonal crack width and its development rate decreased, and the shear strength of beams tested improved. Beams having effective inclined reinforcement factor more than 0.15 had higher shear strength than that of the corresponding solid beams. A numerical procedure based on the upper bound analysis of the plasticity theory was proposed to estimate the shear strength and load transfer capacity of reinforcement in deep beams with openings. Predictions obtained from the proposed formulas have a consistent agreement with test results.
Version
Accepted manuscript
Citation
Yang KH, Chung HS and Ashour AF (2007) Influence of inclined web reinforcement on reinforced concrete deep beams with web openings. ACI Structural Journal, 104 (5): 580-589.
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Article