Experimental Investigation of Buckling Length of CFS Lipped Channel Beams under Restrained Boundary Conditions

Abstract:

Effective length factor of CFS lipped channel beams subjected to flexure are given in AS/NSZ 4600, Euro code Part 1.3 and BS 5950, Part V taking into account their buckling phenomena. The coefficients are given for boundary conditions considering the effect of torsion and warping restraint. The effect of torsion and warping restraints is treated by defining the range of values for the coefficients. Lateral torsion buckling of the CFS beams greatly influences the effective length factors. 16 CFS lipped channel beams have been taken for the study with depth of 100mm, flange width 50mm and lip size varies from 10mm to 20mm.Experimental investigation has been carried out to verify the coefficients for the defined boundary conditions. The influence of flange width and lip size on the buckling length has been investigated. The results are compared with the Indian code provisions for hot rolled beams.

• Periodical: Advanced Materials Research (Volumes 984-985)
• Pages: 140-153
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.984-985.140
• Online since: July 2014
• Authors: R. Kandasamy*, R. Thenmozhi
• Keywords: Boundary Conditions, Effective Length, Torsion Restraints, Warping Restraints

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