EXPERIMENTAL STUDY ON THE SHEAR CAPACITY OF COLD-FORMED STEEL LIPPED CHANNEL BEAMS

Cold-formed steels (CFS) or light gauge steels (LGS) are steel sections created through processes without heat application, such as roll forming or press-braking. CFS studies have focused on many research areas, including designing and analysing members and systems, connections, sustainability, residual stresses and post-fire data. Cold-formed high strength steel members are increasingly used as primary load bearing components in low-rise buildings. Lipped channel beam (LCB) is one of the most commonly used flexural members. The literatures were collected and studied based on the previous investigations in the field of shear behaviour and design of ultra-high strength cold-formed steel lipped channel beams. For experimental study, two sections were selected of thickness 1.5 mm for three aspect ratio 1.0, 1.5 and 2.0 and yield strength of 250 MPa. Sections were fabricated without using angle straps at top and bottom flanges of the section. Ultimate shear capacity and failure modes were obtained.