Analytical investigation of longitudinally stiffened cold-formed steel lipped channel purlins

Abstract

The maximum deflection of a cold-formed steel purlin can be minimized by introducing longitudinal stiffeners in both web and flange of the section and locating them in appropriate positions along the compression and tension zones.In this paper, a cold-formed steel lipped channel section is modeled in Finite Element Analysis using Abaqus.CAE software and V-stiffeners are located at different positions in the flange and the web individually. The models are subjected to pure bending and the maximum deflection of the tension zone is extracted and comparison is made. An appropriate positioning of V-stiffener in cold-formed lipped channel section is proposed.