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Inclined reinforcement around web opening in concrete beams
Yang, Keun-Hyeok
Yang, Keun-Hyeok
Publication Date
2007
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© 2007 Thomas Telford Ltd. Reproduced in accordance with the publisher's self-archiving policy.
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Yes
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Accepted for publication
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Abstract
Twelve reinforced-concrete continuous deep beams
having web openings within interior shear spans were
tested to failure. The main variables investigated were
the opening size and the amount of inclined
reinforcement around openings. An effective inclined
reinforcement factor combining the influence of the
amount of inclined web reinforcement and opening size
is proposed and used to analyse the structural behaviour
of continuous deep beams tested. It was observed that
the end support reaction, diagonal crack width and load
capacity of beams tested were significantly dependent on
the proposed effective inclined reinforcement factor. As
this factor increased, the end support reaction and
increasing rate of diagonal crack width were closer to
those of companion solid deep beams. In addition, a
higher load capacity was exhibited by beams having an
effective inclined reinforcement factor above 0.077 than
the companion solid deep beam. A numerical procedure
based on the upper-bound analysis of the plasticity
theory was proposed to estimate the load capacity of
beams tested. Comparisons between the measured and
predicted load capacities showed good agreement.
Version
Citation
Yang, K.H. and Ashour, A.F. (2007). Inclined reinforcement around web opening in concrete beams. Proceedings of the Institution of Civil Engineers: Structures and Buildings. Vol. 160, No. 3, pp. 173-182.
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Article