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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: Long-Term Behavior of Continuous Composite Concrete Slabs with Steel Decking
Author(s): Alireza Gholamhoseini, R. Ian Gilbert, and Mark Bradford
Publication: Structural Journal
Appears on pages(s): 439-449
Keywords: continuous composite slabs; creep; deflection; profiled steel decking; shrinkage
Abstract:Relatively little research has been reported on the time-dependent in-service behavior of continuous composite concrete slabs with profiled steel decking as permanent formwork and little guidance is available for calculating long-term deflections. The drying shrinkage profile through the thickness of a composite slab is greatly affected by the impermeable steel deck at the slab soffit, and this has only recently been quantified. This paper presents the results of long-term laboratory tests on continuous composite slabs subjected to both drying shrinkage and different levels of sustained load. It provides experimental evidence of the dominant role played by drying shrinkage in the long-term deflection and redistribution of internal actions in continuous composite slabs. An analytical procedure for determination of the time-dependent deflections in continuous composite slabs is described and the results of analyses are presented and compared with the test data.
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