A PARAMETRIC STUDY ON COLD-FORMED STEEL LIPPED CHANNEL BEAM WITH WEB PERFORATION SUBJECTED TO WEB CRIPPLING UNDER ETF LOAD CASE
Author(s):
JAISURYA J, RAJARAJESHWARI N
Keywords:
Abstract
Cold-formed sections are widely employed in steel construction because they are lighter and more economical than traditional hot-rolled members. CFS sections are recently been utilized in construction due to their numerous advantages such as higher load-to-weight ratio, flexibility to shape as well as availability in relatively long spans. CFS channel sections can be used as purlins and joists in the structural system; thus, they are vulnerable to different buckling instabilities including web crippling. Validation of cold-formed steel lipped channel sections with web openings subjected to web crippling was undertaken using finite element (FE) analysis, to investigate the effects of web holes and cross-section sizes on the web crippling strengths of channel sections subjected to web crippling under end-two-flange (ETF) loading conditions. In this loading conditions, the hole was placed at a horizontal distance(offset) to the nearing edge of the bearing plate. It was demonstrated that the main factors influencing the web crippling strength are the ratio of the hole depth & thickness of the web. Web openings could be used in cold-formed steel beam members, such as wall studs or floor joints, to facilitate ease of services in buildings. In this paper a combination of tests using finite element analyses method is used to investigate the effect of such holes on web crippling under end-one-flange (ETF) loading condition. The present paper includes web crippling strength of channel section by numerical study, where the models are validated against the performed experiments.
Article Details
Unique Paper ID: 161759

Publication Volume & Issue: Volume 10, Issue 6

Page(s): 141 - 146
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