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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Title: Determination of Slab Thickness in Suspended Post-Tensioned Floor Systems
Author(s): R. I. Gilbert
Publication: Structural Journal
Appears on pages(s): 602-607
Keywords: building codes; concrete slabs; deflection; flat concrete slabs; post-tensioning; prestressed concrete; serviceability; span-depth ratio; structural design; thickness; two-way slabs; Design
Abstract:A simple expression is presented for the maximum span-to-depth ratio of post-tensioned concrete floor systems. The expression provides an initial estimate of the minimum slab thickness required to limit deflection to some preselected value and forms the basis of a design approach for serviceability. The procedure is an extension of the deemed-to-comply span-to-depth ratios for reinforced concrete slabs that form part of the deflection control provisions in the new Australian Standard for Concrete Structures, AS3600-1988. The procedure described in the paper is illustrated by several numerical examples.
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