Advanced Deformation Analysis of Steel-Concrete Composite T Beam Sections

Abstract

Because of their high specific strength, structural rigidity, and light weight, composite constructions are widely employed. A composite beam is made up of a concrete slab on top and a steel beam with an I-shaped cross section underneath it. Using finite element analysis, a three-dimensional composite beam is modelled to investigate the change in thickness of concrete slab and steel section exposed to evenly distributed load. The structure's support conditions are depicted as fixed beams on both ends. With steel I section beams, a relative research is proposed on three different concrete slab thicknesses of 80, 100, and 120 mm. In the composite T beam at midspan, total deformation, maximum primary stress, shear stress, normal elastic strain, and strain energy are presented. It also attempts to defend that longitudinal compressive stresses in concrete slabs do have non-uniform distribution of stresses over the cross section, leading to positive bending moments. To guarantee that concrete components behave compositely, shear stress across the sections must be evaluated. The numerical model of composite sections for various types of structural components is primarily motivated by their benefit in terms of construction time and cost savings.