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STATIC BEHAVIOR OF DIFFERENT SHEAR CONNECTORS OF COMPOSITE SLAB USING ANSYS

Authors:

Revathy Mohanan¹ Shobha Elizabeth Thomas²

¹Revathy Mohanan, PG Scholor, Department of Civil Engineering SBCE, Pattoor (KTU)

 ²Shobha Elizabeth Thomas, Assistant Professor, Department of Civil Engineering SBCE, Pattoor (KTU)

Abstract - Headed stud shear connectors are commonly used to transfer longitudinal shear forces across the steel-concrete interface. In the areas of high shear, many studs should be welded to the top flanges to provide full shear connection in terms of strength. However, this causes long welding time, raise safety concerns, and also makes it difficult to remove a deteriorated concrete slab, which may damage. In this study, the static behaviour of Channelled, Tee, and Spiral shear connectors used in composite steel concrete beams was analytically examined using ANSYS. Ten specimens were modelled and analysed to determine the maximum deformation, load slip behaviour, failure modes and stress of the proposed composite beam with these shear connectors; these results and then compared with the corresponding values of shear stud. The static behaviour of all the tested shear connectors satisfied the ductility requirements. By comparing the values of maximum deformation and corresponding ultimate load obtained for stud, channel, tee, and spiral shear connectors; tee type shear connector bears a higher load with a deformation of 23.125 mm and a minimum load slip value. Compared to stud type shear connector, rest of the connectors could carry higher loads with higher deformation and higher equivalent stress especially tee type shear connector. Hence, it is concluded that the proposed shear connectors are suitable in the construction of composite beams, as they are stronger than the standard headed studs and the other available shear connectors. They are sufficiently strong as well to perform composite actions.

Keywords – Shear connectors, headed stud shear connectors, Steel composite slabs