Comparison of experimental and analytical studies in light gauge steel sections on CFST using SFRC in beams subjected to high temperatures

This study investigates the behaviour of rectangular concrete-filled steel tubes (CFST) that have compacted thin component sections. Between the experimental and numerical data, there were generally acceptable correlations in the greatest possible flexural strength as well as the curved trend of moment against center displacement relations of the composite material. This was incredibly pure bending for the highest possible flexural strength. After that, the remaining failure pattern of the concrete and the typical residual deformations were investigated by utilizing Finite Element Analysis (FEA) modelling of the outer steel and the load distributions across the composite section during the loading procedure. In this research, there is a comparison of the ambient and elevated temperature due to different conditions. According to the findings of the study, the combination of composite structural members allows stress dispersion in steel and concrete. As a consequence, the CFST beam has a high flexural capacity and is flexible. Following being exposed to a high-pitched temperature, the concrete flexural strength remained drastically reduced. Different standards, such as EC-EN 1994-1-2005, ANSI/AISC 360-16, AIJ-97, and BS 5950-5-2000, have been used to measure the load-carrying capacity of the beams. These beams have also been proposed theoretically by these standards. Its better performance of the elevated temperatures in Infilled beams revealed that the Steel fiber reinforced concrete (SFRC). The study further explores the applicability of the ANN model for predicting the load using the dataset obtained from experimental findings.