Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/24097
Title: Cross section distortion due to cutting of cold-formed steel lipped C-section
Authors: Wang, XP
Lam, SSE 
Chung, KF 
Keywords: Cold-formed steel
Cut stub column
Distortion
Initial imperfection
Lipped C-section
Issue Date: 2006
Publisher: Pergamon Press
Source: Thin-walled structures, 2006, v. 44, no. 3, p. 271-280 How to cite?
Journal: Thin-walled structures 
Abstract: The process of cutting a roll-formed steel section to specified length may lead to cross section distortion and may cause initial geometric imperfection. Two roll-formed steel lipped C-sections of grade G450 were cut to stub columns using an electric saw. Cross section distortions of cut segments and stub columns were measured using a vernier caliper. Initial geometric imperfections of the cut stub columns along the longitudinal direction were estimated using a laser transducer. When a roll-formed steel lipped C-section is cut into two segments, there will be cross section distortions in the vicinity of the cut. For a cut stub column, variation of imperfection along the longitudinal direction at the flanges can be represented by a half-sine wave. The initial geometric imperfection of a cut stub column attains maximum values at the flanges, and is insignificant at the corners where the web and the flanges intersect.
URI: http://hdl.handle.net/10397/24097
ISSN: 0263-8231
EISSN: 1879-3223
DOI: 10.1016/j.tws.2006.03.007
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