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A. Uzzaman¹, A.M. Wrzesien², R. Hamilton¹, J.B.P. Lim² and D. Nash¹

¹Department of Mechanical and Aerospace Engineering
The University of Strathclyde, Glasgow, United Kingdom
²SPACE, Queen's University, Belfast, United Kingdom

doi:10.4203/ccp.102.15

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A. Uzzaman, A.M. Wrzesien, R. Hamilton, J.B.P. Lim, D. Nash, "Investigation of Cold-Formed Steel Top-Hat Sections Under Bending", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 15, 2013. doi:10.4203/ccp.102.15

Keywords: cold-formed steel, purlins, top-hat sections, Eurocode 3, finite element analysis.

Summary

In recent years, with the introduction of higher strength grades, cold-formed steel sections have become increasingly more slender. As a result, top-hat purlin sections have become an alternative to conventional zed purlins, particularly when smaller purlin spans (around 4 m) are required. Such top-hat sections are torsionally stiffer than zed purlins, and have greater resistance against lateral-torsional buckling. Furthermore, they do not require anti-sag rods. However, when determining their strength, they are susceptible to buckling. In this paper, a combination of full-scale laboratory tests and finite element analyses are used to investigate the bending strength of such top-hat sections. Both uplift and gravity loading directions are considered. In this paper, twenty-seven full-scale experimental tests on top-hat sections are described. The moment capacities obtained experimentally are compared against those predicted by the Eurocodes and non-linear elasto-plastic finite element analyses.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 102 PROCEEDINGS OF THE FOURTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING Edited by: Paper 15 Investigation of Cold-Formed Steel Top-Hat Sections Under Bending A. Uzzaman¹, A.M. Wrzesien², R. Hamilton¹, J.B.P. Lim² and D. Nash¹ ¹Department of Mechanical and Aerospace Engineering The University of Strathclyde, Glasgow, United Kingdom ²SPACE, Queen's University, Belfast, United Kingdom doi:10.4203/ccp.102.15 purchase the full-text of this paper Full Bibliographic Reference for this paper A. Uzzaman, A.M. Wrzesien, R. Hamilton, J.B.P. Lim, D. Nash, "Investigation of Cold-Formed Steel Top-Hat Sections Under Bending", in , (Editors), "Proceedings of the Fourteenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Stirlingshire, UK, Paper 15, 2013. doi:10.4203/ccp.102.15 Keywords: cold-formed steel, purlins, top-hat sections, Eurocode 3, finite element analysis. Summary In recent years, with the introduction of higher strength grades, cold-formed steel sections have become increasingly more slender. As a result, top-hat purlin sections have become an alternative to conventional zed purlins, particularly when smaller purlin spans (around 4 m) are required. Such top-hat sections are torsionally stiffer than zed purlins, and have greater resistance against lateral-torsional buckling. Furthermore, they do not require anti-sag rods. However, when determining their strength, they are susceptible to buckling. In this paper, a combination of full-scale laboratory tests and finite element analyses are used to investigate the bending strength of such top-hat sections. Both uplift and gravity loading directions are considered. In this paper, twenty-seven full-scale experimental tests on top-hat sections are described. The moment capacities obtained experimentally are compared against those predicted by the Eurocodes and non-linear elasto-plastic finite element analyses. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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