Geometrical Parametric Study on Steel Beams Exposed to Solar Radiation

A finite element thermal analysis was conducted in this study with the aim of evaluating influence geometrical parameters steel sections on their response under solar radiation. Four W12 and W24 standard beams were investigated irradiation conditions a sunny summer day. The carried out using COMSOL Multiphysics considering Sun’s movement from sunrise to sunset, reflected radiation ground, surface convection air long wave as main boundary loads. temperature-time variation at different locations sections, vertical temperature distributions, gradient distributions stress investigated. results showed that daily maximum temperatures, variation, stresses are influenced by geometry section. flange width thickness found be controlling during noon hours, while these addition web depth control shading effect afternoon. On other hand, affects webs sunset times. Geometrical ratios like Wf/H, Wf/tf2 2Wf/Htf most influential gradients subjected section value 0.96 (W12 × 58) recorded highest top-surface temperature, 84 lowest 0.60 exhibited temperature.