Experimental investigation on longitudinal shear behaviour of steel concrete composite deck slab

Abstract

Composite deck slab is widely used flooring in the construction industry due to its various innate advantages. To improve the shear bond characteristics, the embossments are provided in web or flange of the profiled sheeting. Experimental investigations are needed due to the complex behaviour of the composite deck slabs. In the present study, total six numbers of composite slab specimens with varying shear spans are constructed. The loading is given in two schemes namely shorter and longer shear spans for the specimens cast with concrete M25 grade. During the experimental investigations the composite slab specimens showed different behavioural changes associated with different m-k value. This provides an insight to understand the complex behaviour of composite deck slab. This paper presents points of interest of the exploratory examinations directed on the composite deck section. The assessments of m–k values of embossed profiled sheeting are also proposed.