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Title: FEM analysis of axial compressive bearing capacities of cut cold-formed steel stub columns with c-section
Authors: Lam, SS 
Chung, KF 
Wang, XP
Keywords: Axial compressive bearing capacity
Cold-formed steel
Cut stub columns
Issue Date: 2006
Publisher: 武漢理工大學學報編輯部
Source: 武漢理工大學學報 (Journal of Wuhan University of Technology), 2006, v. 28, no. 7, p. 71-74 How to cite?
Journal: 武漢理工大學學報 (Journal of Wuhan University of Technology) 
Abstract: Cutting roll-formed steel C-section to stub columns will produce different extents of cross section distortion along the length and cause additional initial geometric imperfections. Considering material nonlinear, geometric nonlinear and initial geometric imperfections, the axial compressive bearing capacities and failure modes were analyzed with finite element method for cut stub columns with two kinds of C-section. The analysis results were compared with the compressive testing data of the cut stub columns, showing that the failure modes of the two flanges were obvious distortional mode, while those of the webs were local buckling failures. The geometric imperfections caused by cutting reduced the ultimate strength of the fixed-ended stub columns by 7%∼11%.
ISSN: 1000-2405
EISSN: 1671-4431
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