Research Article
Oct 1982
Rigidities of Nonorthogonally Shaped Waffle Slabs
Authors: John B. Kennedy, M.ASCE, and K. J. IyengarAuthor Affiliations
Publication: Journal of the Structural Division
Volume 108, Issue 10
Abstract
Theoretical formulae are presented for the various rigidities of non-orthogonally shaped waffle concrete slabs for both the precracking and postcracking stages. The deduced expressions for the flexural, coupling and torsional rigidites are applicable to both reinforced and prestressed concrete constructions. Experimental results derived from tests on twelve non-orthogonally shaped waffle concrete slabs verify and substantiate the theoretical derivations. The effect of creep on the rigidites is discussed and a method to account for it is suggested. The use of reliable estimates of the rigidities should lead to a more economical and better design of such waffle-type structures.
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Published In
Journal of the Structural Division
Volume 108 • Issue 10 • October 1982
Pages: 2263 - 2278
Copyright
© 1982 American Society of Civil Engineers.
History
Published in print: Oct 1982
Published online: Feb 1, 2021
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John B. Kennedy, M.ASCE
Prof., Dept. of Civ. Engrg., Univ. of Windsor, Windsor, Ontario, Canada
K. J. Iyengar
Research Officer, Atomic Energy of Canada Ltd., Mississauga, Ontario, Canada
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Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.