Abstract
Composite deck slab floors are gaining wide acceptance in many countries as they lend themselves to faster, lighter and economical construction in buildings. The cold formed profile sheeting which is an integral part of the deck slab is provided with embossments to improve their shear bond characteristics. However, the shear behaviour of composite deck slab is a complex phenomenon and therefore experimental methods are often resorted to establish their shear strength under flexural loads. An experimental study has been carried out to investigate primarily the shear bond behaviour of the embossed composite deck slab under simulated imposed loads and to evaluate the m – k values. Totally 18 composite slab specimens were cast using M20 grade concrete. The 18 numbers of specimens were split into six sets of three specimens each in which three sets were tested for shorter shear span loading and the other three sets for longer shear span loading. The specimens were tested as per the general provisions in Eurocode 4 [Eurocode 4. Design of composite steel and concrete structures. Part 1.1. General rules and rules for buildings]. This paper presents details of the experimental investigations conducted on the composite deck slabs and the evaluation of m – k values for the embossed profiled sheet.
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