Design of Cold-Formed High-Strength Steel Tubular Stub Columns
Publication: Journal of Structural Engineering
Volume 144, Issue 6
Abstract
This paper presents the numerical investigation of the compressive behavior of cold-formed high-strength steel (HSS) tubular stub columns. The nominal 0.2% proof stresses of the high-strength steel are 700, 900, and 1,100 MPa. Experimental investigations have been conducted, and the numerical methodology has been verified against the test results in a complementary study. Parametric studies on the cold-formed HSS tubular stub columns were performed using the verified models, and additional data were generated to evaluate the structural performance of such compression members. The experimental and numerical results were then compared with the predictions from the design guidelines for square hollow sections (SHS), rectangular hollow sections (RHS), and circular hollow sections (CHS). The current codified slenderness limits and design methods were examined. Modifications to the design methods for resistances of SHS, RHS, and CHS stub columns against cross-sectional yielding or local buckling are proposed in this paper.
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Acknowledgments
The research work described in the article was supported by a grant from the Research Grants Council of the Hong Kong Special Administrative Region, China (Project No. 17209614). The authors are also grateful for the support from the Chinese National Engineering Research Centre for Steel Construction (Hong Kong Branch) at the Hong Kong Polytechnic University.
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Information & Authors
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Published In
Journal of Structural Engineering
Volume 144 • Issue 6 • June 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Apr 12, 2017
Accepted: Nov 21, 2017
Published online: Apr 12, 2018
Published in print: Jun 1, 2018
Discussion open until: Sep 12, 2018
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