Study on Reduction in Capacity of Hot Rolled I-Section Due to Elevated Temperature

It’s been so long that hot rolled I-beams are being used across the world for construction. The stability of steel structure is certainly influenced by decreasing stiffness during heating and non-linear response of stress–strain at elevated temperature when subjected to fire. Temperature is one of the reasons for failure of the structure which makes the study of effect of temperature on steel structure important. This paper represents an analytical study of the performance of geometrically perfect steel section under the elevated temperature. The analysis is based on multi-linear isotropic material which uses finite element method and is functionally affected by temperature. A major spotlight of the paper is to compile the past studies on the material, stress–strain curve of steel and effect of temperature on it. The different parameters selected for the comparison are applied loads, deformation, maximum equivalent stress, plastic region, elastic region, respectively.