Tests of X- and K-Joints in SHS Stainless Steel Tubes
Publication: Journal of Structural Engineering
Volume 127, Issue 10
Abstract
This paper describes a test program on welded stainless steel X- and K-joints fabricated from square hollow section (SHS) brace members and chords. The X-joints were tested in compression and tension using different ratios of brace width to chord width. The K-joints were tested by varying the ratio of brace width to chord width, the angle between chord and brace members, and the preload applied to the chord. A total of 23 tests were performed. Design rules are proposed for X- and K-joints by adopting the rules of the Comité International pour le Developpement et l'Etude de la Construction Tubulaire (CIDECT) recommendations for carbon steel tubular structures and replacing the yield stress in these recommendations by a proof stress. It is shown that the 0.2% proof stress, as determined from the finished tube, can be used to determine the ultimate strength using the CIDECT design rules and that the serviceability limit state corresponding to joint deformations of 1% of the chord width will not be reached if the CIDECT strength rules are adopted. It is also shown that the CIDECT strength rules produce unconservative design strengths when using the 0.5% proof stress in cases of high compressive forces in the chord. However, the serviceability limit state will generally not be reached if the 0.5% proof stress is used.
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References
1.
ASCE. ( 1991). Specification for the design of cold-formed stainless steel structural members, New York.
2.
American Welding Society (AWS). ( 1992). “Specification for covered corrosion-resisting chromium and chromium-nickel steel welding electrodes.” A5.4, Miami.
3.
American Welding Society (AWS). ( 1998). “Structural welding code.” D1.1, Miami.
4.
Cao, J. J. Packer, J. A., and Kosteski, N. ( 1998). “Parametric finite element study of connections between longitudinal plates and RHS columns.” Proc., 8th Int. Symp. on Tubular Struct., Tubular Structures VIII, Y. S. Choo and G. J. Van der Vegte, eds., Balkema, Rotterdam, The Netherlands, 645–654.
5.
Comité International pour le Developpement et l'Etude de la Construction Tubulaire (CIDECT). ( 1986). The strength and behaviour of statically loaded welded connections in structural hollow sections, Monograph No. 6, British Steel Corporation.
6.
Commission of the European Communities (CEN). ( 1992). “Common unified rules for steel structures, part 1.1.” Eurocode 3, Brussels.
7.
International Institute of Welding. (IIW). ( 1989). Design recommendation for hollow section joints—Predominantly statically loaded, 2nd Ed., IIW Document XV-701-89, Cambridge, U.K.
8.
Kurobane, Y., Ogawa, K., Ochi, K., and Makino, Y. ( 1986). “Local buckling of braces in tubular K-joints.” Thin-walled structures, Vol. 4, 23–40.
9.
Lu, L. H., de Winkel, G. D., Yu, Y., and Wardenier, J. ( 1994). “Deformation limit for the ultimate strength of hollow section joints.” Proc., 6th Int. Symp. on Tubular Struct., Tubular Structures VI, P. Grundy, A. Holgate, and B. Wong, eds., Balkema, Rotterdam, The Netherlands, 341–347.
10.
Packer, J. A., and Henderson, J. E. ( 1997). Hollow structural section connections and trusses: A design guide, 2nd Ed., Canadian Institute of Steel Construction, Ontario, Canada.
11.
Packer, J. A., Wardenier, J., Kurobane, Y., Dutta, D., and Yeomans, N. ( 1992). Design guide for rectangular hollow section (RHS) joints under predominantly static loading, Comité International pour le Developpement et l'Etude de la Construction Tubulaire (CIDECT), Verlag TUV Rheinland, Cologne, Germany.
12.
Rasmussen, K. J. R., and Hancock, G. J. (1993a). “Design of cold-formed stainless steel tubular members. I: Columns.”J. Struct. Engrg., ASCE, 119(8), 2349–2367.
13.
Rasmussen, K. J. R., and Hancock, G. J. (1993b). “Design of cold-formed stainless steel tubular members. II: Beams.”J. Struct. Engrg., ASCE, 119(8), 2368–2386.
14.
Rasmussen, K. J. R., and Hasham, A. S. (2001). “Tests of X- and K-joints in CHS Stainless Steel Tubes.”J. Struct. Engrg., ASCE, 127(10), 1183–1189.
15.
Rasmussen, K. J. R., and Young, B. ( 1994a). “Design of stainless steel square hollow section joints.” Res. Rep. R690, School of Civil and Mining Engineering, University of Sydney, Sydney, Australia.
16.
Rasmussen, K. J. R., and Young, B. ( 1994b). “Stainless steel tubular joints—Tests and design of X- and K-joints in square hollow sections.” Proc., 12th Int. Spec. Conf. on Cold-Formed Steel Struct., W. W. Yu and R. A. LaBoube, eds., Univ. of Missouri-Rolla, Rolla, Mo., 595–619.
17.
Wardenier, J. ( 1982). Hollow section joints, Delft University Press, Delft, The Netherlands.
18.
Zhao, X.-L. ( 2000). “Deformation limit and ultimate strength of welded T-joints in cold-formed RHS sections.” J. Constr. Steel Res., 53, 149–165.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 127 • Issue 10 • October 2001
Pages: 1173 - 1182
History
Received: Oct 19, 1999
Published online: Oct 1, 2001
Published in print: Oct 2001
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