Local Buckling Interaction in Cold‐Formed Columns
Publication: Journal of Structural Engineering
Volume 113, Issue 3
Abstract
Local buckling interaction between component plate elements of uniformly compressed, channel and lipped channel, steel stub columns is studied. An experimental investigation is reported to quantify the structural response. This response is analyzed with two effective section approaches. One approach employs the finite strip method to predict local buckling interaction. The second neglects the interactional effects and treats component plate elements as if simply supported. Ultimate strengths predicted with the second, simplified approach agree well with experimental results; whereas strengths predicted with the first approach are too conservative. Also, a special subultimate effective width equation, applicable to both stiffened and unstiffened plate elements, provides load‐deflection predictions that are in agreement with experimental data. In contrast to this, subultimate deflections predicted with a current design approach are shown to be excessively conservative.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Bathe, K‐J., Finite Element Procedures in Engineering Analysis, Prentice‐Hall, Inc., Englewood Cliffs, N.J., 1982.
2.
Bulson, P. S., The Stability of Flat Plates, American Elsevier Publishing Co., New York, N.Y., 1969.
3.
Cheung, Y. C., Finite Strip Method in Structural Analysis, Pergamon Press Inc., Elmsford, N.Y., 1976.
4.
Desmond, T. P., “The Behavior and Strength of Thin‐Walled Compression Elements with Longitudinal Stiffeners,” Report No. 369, Department of Structural Engineering, Cornell University, Ithaca, N.Y., Sept., 1978.
5.
DeWolf, J. T., Pekoz, T., and Winter, G., “Local and Overall Buckling of Cold‐Formed Members,” Journal of the Structural Division, ASCE, Vol. 100, No. ST10, Oct., 1974, pp. 2017–2036.
6.
Frieze, P. A., “Elasto‐Plastic Buckling in Short Thin‐Walled Beams and Columns,” Proceedings, Institute of Civil Engineers, Part 2, Vol. 65, Dec., 1978, pp. 857–874.
7.
Graves Smith, T. R., and Sridharan, S., “A Finite Strip Method for the Buckling of Plate Structures Under Arbitrary Loading,” International Journal of Mechanical Science, Vol. 20, 1978, pp. 685–693.
8.
Johnson, A. L., “The Structural Performance of Austenitic Stainless Steel Members,” Report No. 327, Department of Structural Engineering, Cornell University, Ithaca, N.Y., 1966.
9.
Johnston, B. G., Ed., Guide to Stability Design Criteria for Metal Structures, 3rd ed., John Wiley and Sons, New York, N.Y., 1976.
10.
Kalyanaraman, V., Pekoz, T., and Winter, G., “Unstiffened Compression Elements,” Journal of the Structural Division, ASCE, Vol. 103, No. ST9, Sept., 1977, pp. 1833–1848.
11.
Mulligan, G. P., “The Influence of Local Buckling on the Structural Behavior of Singly‐Symmetric Cold‐Formed Steel Columns,” thesis presented to Cornell University, at Ithaca, N.Y., in 1983, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
12.
Mulligan, G. P., and Pekoz, T., “Locally Buckled Thin‐Walled Columns,” Journal of Structural Engineering, ASCE, Vol. 110, No. ST11, Nov., 1984, pp. 2635–2654.
13.
Plank, R. J., and Wittrick, N. H., “Buckling under Combined Loading of Thin Flat‐Walled Structures by a Complex Finite Strip Method,” International Journal for Numerical Methods in Engineering, Vol. 8, 1974, pp. 323–339.
14.
Przemieniecki, J. S., “Finite Element Structural Analysis of Local Instability,” AIAA Journal, Vol. 11, No. 1, 1973, pp. 33–39.
15.
Rhodes, J., “Secondary Local Buckling in Thin‐Walled Sections,” ACTA Technica, Academiae Scientiarum Hangaricae, Tomus 87 (1–2), 1978, pp. 143–153.
16.
Rhodes, J., and Harvey, J. M., “Plain Channel Section Struts in Compression and Bending beyond the Local Buckling Load,” International Journal of Mechanical Science, Vol. 8, 1976, pp. 511–519.
17.
Specification for the Design of Cold‐Formed Steel Structural Members, American Iron and Steel Institute, Washington, D.C., 1980.
18.
Timoshenko, S. P., and Gere, J. M., Theory of Elastic Stability, McGraw‐Hill Book Co., New York, N.Y., 1961.
19.
Winter, G., Commentary on the 1968 Edition of the Specification for the Design of Cold‐Formed Steel Structural Members, American Iron and Steel Institute, Washington, D.C., 1970.
20.
Zienkiewicz, O. C., The Finite Element Method, McGraw‐Hill Book Co., Ltd., London, U.K., 1977.
Information & Authors
Information
Published In
Copyright
Copyright © 1987 ASCE.
History
Published online: Mar 1, 1987
Published in print: Mar 1987
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.