A Comparative Study on Light Gauge Member and Castellated Beam

Abstract

This research paper examines the comparative study on strength characteristics of a Cold rolled steel with castellated beam under the lateral distortional and torsional buckling modes. For studying a beam element, a STADD model is built. In the examination of cold formed steel sections, material non-linearity and geometric imperfection were taken into account. Variations in length and cross section of a finite element model were investigated. For cold formed steel sections and castellated beams, the load deflection curve is plotted and examined. To investigate the strength and behaviour of castellated steel beams, finite element modelling was used to modify the cross section. The study shows that the web distortional buckling has greatly influenced by the failure load in castellated steel beam. The failure load of the beam is influenced by the steel strength; the higher the steel strength, the higher the failure load. The high strength castellated steel beam fails due to local flange buckling, whereas the regular castellated steel beam fails due to lateral torsional buckling in the web.