Steel–concrete–steel sandwich (SCSS) construction is a relatively new and innovative form of construction consisting of a plain concrete core, sandwiched between two layers of relatively thin steel plate, connected to the concrete by shear connectors. SFCC floor panel consists of thin cold-formed profiled steel sheet of thickness 0.8 mm as the outer skins and aerated foam concrete (FC) of density 850 kg/m3 as the infill. The use of low density FC reduces the self-weight of panel. Shear connectors in the form of through- through mild steel studs are used to transfer shear between steel sheet and FC core. The mesh comprises of 8-node brick element (C3D8R) for FC core and 4- node shell elements (S4R) for the steel sheet. FE model is incorporated with contact surface to simulate the interfaces between profiled steel sheets and concrete core. The penalty friction contact option for tangential contact behaviour and hard contact for normal behaviour is utilized. The failure of studs is not observed in the experiment and hence to simplify the analysis, studs are not modelled. At the locations of studs, node tie constraint is used to simulate the connectivity between sheet and FC. The plastic behaviour of FC is modeled by using concrete damage plasticity (CDP) model which assumes two failure mechanisms: tensile cracking and compressive crushing of the material. The current study is based on FE analysis of SFCC panel using ABAQUS and comparison with the experimental result. And also parametric study on SFCC floor panel is done. Nonlinear FE analysis has shown that these SFCC floor panels have displayed a high degree of flexural characteristics, ultimate strength and ductility. Close agreement has been observed between the FE and experimental results for ultimate loads and load–deflection responses. The FE model is thus found to be capable of predicting the behaviour of SFCC floor panels accurately throughout the entire range.

steel-concrete composite panels, ductility, infilled concrete, sandwich panel, profiled sheets, Connectors, Foam concrete, load-deflection, strain gauges, Load-deflection response