Abstract
Many research works have been conducted on the behavior of composite slabs with profiled steel deck to study the longitudinal shear bond resistance using the m-k method. In this study, experimental investigations are conducted to evaluate the shear bond characeristics of composite slabs. 15 composite slabs are tested to study the effect of different high performance concrete (HPC) mixes namely engineered cementitious composites (ECC) and self-consolidating concrete (SCC), diverse profile sheets (with embossments or without embossments) and variable shear span on load-deflection characteristics, stress-strain development in concrete/steel, cracking/crack propagation and failure modes. The values of shear bond parameters (m and k) derived from the test results can be used for the design of composite slabs.
Highlights
In this study~ Composite slabs were fabricated with two different types of profiled steel sheeting supplied by CANAM, Canada in combination with two different high performance concrete (HPC) concrete topping
At the moderate load the profiled sheet carried the tensile stresses, which are transferred from the concrete by the bond between the two materials. When this bond became not adequate, the separation started to occur between the concrete and the profiled sheet and the slab stopped behaving as a composite section, the longitudinal cracks had curved up due to the combination of shear and bending stress in concrete
This project studied the structural perfonnance of composite slabs with high perfonnance concrete (HPC) through experimental and theoretical investigations
Summary
In this study~ Composite slabs were fabricated with two different types of profiled steel sheeting supplied by CANAM, Canada in combination with two different HPC concrete topping. We provide experiments conducted on composite slabs to studying the steel-concrete interface shear bond and its influence on the overall structural behavior of the system (such as shear resistance~ interface slippage, deflection, failure modes) taking into account concrete and steel sheet types and variable shear span. Two types of profiled steel sheeting with different specifications designated as Type-A and Type-B were used to construct composite slab specimens in Structures and Materials Laboratories of Ryerson University. 3.2.1 Specifications of Sheet Type-A (P-3012): Type. A sheet was P-3012 deck manufactured by Canam Canada. The sheet is galvanized according to the standard ASTM A 653M with zinc thickness corresponding to Z275 (G90) , having standard thicknesses of 0.38 mm.
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