Experimental investigation on double lipped channel cold-formed thin-wall steel column under compression loading

Abstract

:In order to investigate the compression behavior of double lipped channel cold-formed thin-wall steel column used in Box housing, a total of 12 columns with three different lengths(3000mm,2556mm,2000mm, respectively)and two different thickness(3mm, 4mm )were tested to investigate the ultimate load-carrying capacity and deformation behavior of cold-formed steel. It is found that the thickness has an obvious effect on compression ultimate load-carrying capacity, while the length does not have much influence. The failure modes of most specimens contain local buckling. Test analysis result simulated by finite element analysis (FEA) agreed well with the experimental data, which verified the FEA analysis method is appropriate. The analysis method provided in this paper can be referenced for the design of Box housing.