Research Article
Mar 1978
Flexural Strength of Modified Square Footings
Publication: Journal of the Structural Division
Volume 104, Issue 3
Abstract
The ultimate flexural strength behavior of isolated square tapered and beam-slab reinforced footings are presented. Yield line solutions are developed for generalized contact pressure distributions and the influence of taper, beam size, fillet size, negative moment capacity, and contact pressure distribution on the collapse load is brought out. In beam-slab footings the optimum relative beam capacity required to make the beam rigid is indicated. Results of experimental investigations on footings resting on sand reveal that tapered (with isotropic as well as with alternative reinforcement patterns) and beam-slab footings exhibit superior structural behavior in terms of normalized first crack load, collapse load, relative rigidity, relative efficiency, and failure mechanism.
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Published In
Journal of the Structural Division
Volume 104 • Issue 3 • March 1978
Pages: 551 - 565
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Mar 1978
Published online: Feb 1, 2021
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Madanai S. S. Nathan
Executive, Canadian Met-Chem Consultants Ltd., Kudre mukh Office, India
Balagolam V. Ranganatham
Prof., Dept. of Civ. Engrg., Indian Inst. of Sci., Bangalore, India
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