CONCRETE COMPOSITE SLAB CONSTRUCTION: STATE OF THE ART

A.Siva, Thamilselvi P, Saddam M Ahmed, Senthil R

Abstract: In the recent trends emerging day by day in the construction industry, composite construction method has gained its popularity for its economical usage of materials and providing higher sustainability than conventional concrete construction system. Several factors that affect the degree of slippage deterioration in composite slab, e.g. embossments, shape of profiled sheeting and shear connector types. The common types of failure modes in composite slabs are flexural failure, shear failure and combination of flexural-shear failure mechanism. Small scale test helps to determine the shear resistance capacity, slip and shear action between the corrugated steel and harden concrete. Small scale tests usually used Push out, Pull out, Pull over or elemental bending tests. The reduction in the size of the structural components, thereby decreasing the dead loads which results in the construction of more floors (i.e.) increasing the service living area. The shear action between the sheet and the concrete can be achieved by providing frictional interlock (shape of the profiled sheeting), mechanical interlock (embossments on the sheet) and end anchorage interlock (studs on the profiled sheeting). The advantages of composite construction over steel reinforced concrete construction are reducing the thickness of the floor slab with a simultaneous proving in the load bearing capacity of the slab. This paper also discusses an attempts on quantifying the slippage in terms of m-k method. Finally, the areas that need further research are highlighted and the need for incorporating composite slab contribution into building design guidelines is emphasized.

Keywords: Composite Slab, Shear Failure, Slip and Deflection

DOI: https://doi.org/10.15623/ijret.2017.0601023