Tests to Examine Compact Web Slenderness of Cold-Formed RHS
Publication: Journal of Structural Engineering
Volume 124, Issue 10
Abstract
This paper describes a series of bending tests to examine the influence of web slenderness on the rotation capacity of cold-formed rectangular hollow sections (RHS) for use in plastic design. The results indicate that the plastic web slenderness limits in design standards, which are based on tests of I-sections, are not conservative for RHS. Some sections, which are classified as compact by current steel specifications, do not demonstrate rotation capacity suitable for plastic design. The common approach in which the flange and web slenderness limits are given independently is inappropriate for RHS. There is considerable interaction between the webs and flange, which influences the rotation capacity, as shown by approximate isorotation curves. A proposal for a bilinear interaction formula between the web and flange slenderness limits for Compact RHS is given.
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References
1.
Beg, D., and Hladnik, L. (1996). “Slenderness limit of class 3 I cross-sections made of high strength steel.”J. Constr. Steel Res. 38(3), 201–217.
2.
CASE. (1992). “Tests on rectangular hollow sections to investigate the effect of variation of yield stress around a section.”Investigation Rep. No. S885, Centre for Advanced Structural Engineering, School of Civil and Mining Engineering, University of Sydney, Sydney, Australia.
3.
“Code of practice for design in simple and continuous construction: Hot-rolled sections, structural use of steelwork in building.” (1990). BS 5950 Part 1, British Standards Institute, London, U.K.
4.
Daali, M. L., and Korol, R. M. (1995). “Prediction of local buckling and rotation capacity at maximum moment.”J. Constr. Steel Res. 32(1), 1–13.
5.
“Design of steel structures: Part 1.1—General rules and rules for buildings.” (1992). DD ENV. 1993-1-1, European Committee for Standardisation, Eurocode 3 Editorial Group, Brussels, Belgium.
6.
Dwyer, T. J., and Galambos, T. V.(1965). “Plastic behavior of tubular beam-columns.”J. Struct. Div., ASCE, 91(4), 153–168.
7.
Hasan, S. W., and Hancock, G. J. (1988). “Plastic bending tests of cold-formed rectangular hollow sections.”Res. Rep. No. R586, School of Civil and Mining Engineering, University of Sydney, Sydney, Australia.
8.
“Limit states design of steel structures.” (1994). CANS S16.1-94, Canadian Standards Association, Etobicoke, Ontario, Canada. Load and resistance factor design specification for structural steel buildings . (1994). metric edition, American Institute of Steel Construction (AISC), Chicago, Ill.
9.
Korol, R. M., and Hudoba, J.(1972). “Plastic behavior of hollow structural sections.”J. Struct. Div., ASCE, 98(5), 1007–1023.
10.
“Methods for tensile testing of metals.” (1991). AS 1391, Standards Australia, Sydney, Australia.
11.
Sedlacek, G., and Feldmann, M. (1995). “The b/t ratios controlling the applicability of analysis models in Eurocode 3, Part 1.1.”Background document 5.09 for chapter 5 of Eurocode 3, Part 1.1, Aachen, Germany.
12.
“Standard specification for cold-formed welded and seamless carbon steel structural tubing in rounds and shapes.” (1993). A500, ASTM, Philadelphia, Pa.
13.
“Steel structures.” (1990). AS 4100, Standards Australia, Sydney, Australia.
14.
“Structural steel hollow sections.” (1991). AS 1163, Standards Australia, Sydney, Australia.
15.
Tubemakers. (1994). Design capacity tables for DuraGal steel hollow sections. Tubemakers of Australia Ltd., Structural Products Division, Newcastle, Australia.
16.
Wilkinson, T., and Hancock, G. J. (1997). “Tests for the compact web slenderness limits of cold-formed rectangular hollow sections.”Res. Rep. No. R744, Department of Civil Engineering, University of Sydney, Sydney, Australia.
17.
Zhao, X.-L., and Hancock, G. J.(1991a). “Tests to determine plate slenderness limits for cold-formed rectangular hollow sections of grade C450.”Steel Construction, 25(4), 2–16.
18.
Zhao, X.-L., and Hancock, G. J.(1991b). “T-Joints in rectangular hollow sections subject to combined actions.”J. Struct. Engrg., ASCE, 117(8), 2258–2277.
19.
Zhao, X.-L., and Hancock, G. J.(1992). “Square and rectangular hollow sections subject to combined actions.”J. Struct. Engrg., ASCE, 118(3), 648–668.
20.
Zhao, X.-L., Hancock, G. J., and Trahair, N. S.(1995). “Lateral-buckling tests of cold-formed RHS beams.”J. Struct. Engrg, ASCE, 121(11), 1565–1573.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 10 • October 1998
Pages: 1166 - 1174
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Oct 1, 1998
Published in print: Oct 1998
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