Cold-Formed Steel Members with Multiple Longitudinal Intermediate Stiffeners
Publication: Journal of Structural Engineering
Volume 124, Issue 10
Abstract
A new procedure for calculating the effective width of stiffened elements with multiple longitudinal intermediate stiffeners is presented. The method determines the critical stress for distortional buckling of the entire stiffened element as a unit, and local buckling of the subelement plates between stiffeners. Approximate expressions for calculating distortional buckling are verified via comparison to numerical methods. The effective width of the element is determined using Winter's equation based on the governing buckling stress. Reduced postbuckling capacity in the distortional mode is considered. Comparison to experimental data and numerical analysis shows the resulting method is a reliable predictor of the flexural capacity of cold-formed steel members with multiple longitudinal intermediate stiffeners in the compression flange.
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References
1.
Bernard, E. S. (1993). “Flexural behavior of cold-formed profiled steel decking,” PhD thesis, University of Sydney, Australia.
2.
Bleich, F. (1952). Buckling strength of metal structures. McGraw-Hill Book Co., Inc., New York.
3.
Cheung, Y. K. (1976). Finite strip method in structural analysis. Pergamon Press, New York.
4.
Cohen, J. M. (1987). “Local buckling behavior of plate elements.”Dept. of Struct. Engrg. Rep., Cornell University, Ithaca, N.Y. Cold-formed steel design manual. (1996). American Iron and Steel Institute, Washington, D.C.
5.
“Cold formed steel structural members.” (1991). CAN/CSA-S136-M89. Canadian Standards Association, Ottawa, Canada.
6.
Desmond, T. P. (1977). “The behavior and design of thin-walled compression elements with longitudinal stiffeners,” PhD thesis, Cornell University, Ithaca, N.Y.
7.
Hancock, G. J., Kwon, Y. B., and Bernard, E. S. (1994). “Strength design curves for thin-walled sections undergoing distortional buckling.”J. Constr. Steel Res., 31(2–3), 169–186.
8.
Höglund, T. (1980). “Design of trapezoidal sheeting provided with stiffeners in the flanges and webs.”Rep. D28, Swedish Council for Building Research, Stockholm, Sweden.
9.
Klöppel, K., and Scheer, J. (1960). Beulwerte Ausgesteifter Rechteckplatten Kurventafeln zum direkten Nachweis der Beulsicherheit für verschiedene Steifenanordnungen und Belastungen. Verlag von Wilhelm, Ernst & Sohn, Berlin, Germany.
10.
König, J. (1978). “Transversally loaded thin-walled C-shaped panels with intermediate stiffeners.”Rep. D7, Swedish Council for Building Research, Stockholm, Sweden.
11.
Kwon, Y. B. (1992). “Post-buckling behavior of thin-walled channel sections,” PhD thesis, University of Sydney, Australia.
12.
Lau, S. C. W. (1988). “Distortional buckling of thin-walled columns,” PhD thesis, University of Sydney, Australia.
13.
Lind, N. C.(1973). “Buckling of longitudinally stiffened sheets.”J. Struct. Div., ASCE, 99(7), 1686–1691.
14.
Papazian, R. P., Schuster, R. M., and Sommerstein, M. (1994). “Multiple stiffened deck profiles.”Proc., 12th Int. Spec. Conf. on Cold-Formed Steel Struct., University of Missouri at Rolla, Mo., 217–228.
15.
Phung, N., and Yu, W. W. (1978). “Structural behavior of longitudinally reinforced beam webs.”Civ. Engrg. Study Struct. Ser., Dept. of Civ. Engrg., 78-6, University of Missouri at Rolla, Mo.
16.
Plank, R. J., and Wittrick, W. H.(1974). “Buckling under combined loading of thin, flat-walled structures by a complex finite strip method.”Int. J. for Numer. Methods in Engrg., 8(2), 323–339.
17.
Przemieniecki, J. S.(1973). “Finite element structural analysis of local instability.”J. Am. Inst. of Aeronautics and Astronautics, 11(1), 33–39.
18.
Rogers, C. A. (1995). “Interaction buckling of flange, edge stiffener and web of C-sections in bending,” MS thesis, University of Waterloo, Ontario, Canada.
19.
Schafer, B. W. (1994). “Behavior and design of cold-formed steel members with intermediate stiffeners,” MS thesis, Cornell University, Ithaca, N.Y.
20.
Schafer, B. W. (1997). “Cold-formed steel behavior and design: Analytical and numerical modeling of elements and members with longitudinal stiffeners,” PhD thesis, Cornell University, Ithaca, N.Y.
21.
Timoshenko, S. P., and Gere, J. M. (1936). Theory of elastic stability. McGraw-Hill Book Co., New York.
22.
Troitsky, M. S. (1976). Stiffened plates bending, stability and vibrations. Elsevier, New York.
23.
von Kárman, T., Sechler, E. E., and Donnell, L. H.(1932). “The strength of thin plates in compression.”Trans., ASME, 54, 53–57.
24.
Winter, G.(1947). “Strength of thin steel compression flanges.”Trans. ASCE, 112, 1–50.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 124 • Issue 10 • October 1998
Pages: 1175 - 1181
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Oct 1, 1998
Published in print: Oct 1998
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