FraMCoS 8 2013 Toledo, Spain

Evaluation of Time-Dependent Behaviour of Composite Concrete Slabs with Steel Decking (An Experimental Study)

Relatively little research has been undertaken on the time-dependent in-service behaviour of composite concrete slabs with profiled steel decking as permanent formwork and little guidance is available to practicing engineers for predicting long-term deflection. The drying shrinkage profile through the…

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Year 2013
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Abstract

Relatively little research has been undertaken on the time-dependent in-service behaviour of composite concrete slabs with profiled steel decking as permanent formwork and little guidance is available to practicing engineers for predicting long-term deflection. The drying shrinkage profile through the thickness of a slab is known to be greatly affected by the impermeable steel deck at the slab soffit, but this has not yet been quantified satisfactorily. This paper presents the results of long- term laboratory tests on composite slabs subjected to both drying shrinkage and sustained loads.