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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: Shearing Strength of Prestressed Lift Slabs*
Author(s): A. C. Scordelis, T. Y. Lin and H. R. Mayo
Publication: Journal Proceedings
Appears on pages(s): 485-506
Keywords: no keywords
Abstract:A research investigation on the ultimate shearing strength of reinforced and prestressed concrete lift slabs included the testing of 15 slabs, 12 of which were prestressed with unbonded cables. All specimens were 6 ft square and had thicknesses of 6,8, or 10 in. The slabs were supported along all four edges and centrally loaded. Major variables were concrete strength, amount of prestressing or reinforcing steel, amount of initial prestress, size of steel collars, thickness of slab, and amount of collar recess. A comparison of the test results with expressions for ultimate shearing strength of reinforced concrete slabs proposed by Elstner and Hognestad and by Whitney indicate that these expressions, with proper interpretation, may also be used for the prestressed slabs included within this series of tests.
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