Experimental Investigation of Cold-Formed Steel Lipped Angle Concentrically Loaded Compression Members
Publication: Journal of Structural Engineering
Volume 131, Issue 9
Abstract
An experimental investigation of cold-formed steel lipped angle concentrically loaded compression members is presented in this paper. The angle specimens were tested between fixed-ended conditions at various column lengths. Local buckling, flexural buckling, flexural-torsional buckling, and interaction of these buckling modes were observed in the column tests. Detailed measurements of geometric imperfections and material properties of the specimens were conducted. The purpose of this paper is to provide test data for concentrically loaded compression members of cold-formed steel lipped angles. In addition, the test strengths were compared with the design strengths predicted using the North American Specification and Australian/New Zealand Standard for cold-formed steel structures. It is concluded that the design strengths predicted by the specification and standard are conservative without considering the required additional bending moment using an eccentricity of of the column length.
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Acknowledgments
The writer is grateful to BHP Steel Lysaght, Singapore (now BlueScope Lysaght), for supplying the test specimens. The writer is also thankful to Miss Pei-Cheng Kow and Mr. Kok-Kwang Seah for their assistance in the experimental program as part of their final year undergraduate research project at the School of Civil and Environmental Engineering, Nanyang Technological University, Singapore. The analytical work described in this paper was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. HKUST6036/02E).
References
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 9 • September 2005
Pages: 1390 - 1396
Copyright
© 2005 ASCE.
History
Received: Nov 25, 2003
Accepted: Oct 28, 2004
Published online: Sep 1, 2005
Published in print: Sep 2005
Notes
Note. Associate Editor: Donald W. White
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