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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: Short-Term Deflection in Two-Way Reinforced Concrete Slabs After Cracking
Author(s): S. N. Shukla and M. K. Mittal
Publication: Journal Proceedings
Appears on pages(s): 416-419
Keywords: concrete slabs; cracking (fracturing): deflection;loads (forces) : reinforced concrete; structural analysis;two-way slabs.
Abstract:Use of the ultimate strength methad of design with high strength concrete and reinforcing steels poses serviceability problems in modern structures. Excessive cracking and deflection may occur in slabs designed by the new methods such as the yield-line and the strip methods, since the percentage of reinforcement in such slabs is comparatively low. This calls for design criteria to control cracking and deflection. The codes do permit some values of crack width which are tolerable. However, an exact theoretical value of deflection in a cracked slab is difficult to calculate. The present paper makes an attempt to derive and present an empirical formula for deflection in slabs which have cracked, based on experimental values obtained in a series of tests on slabs.
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