Interaction of Local and Overall Instability of Compressed Box Columns
Publication: Journal of Structural Engineering
Volume 117, Issue 11
Abstract
In this paper the curved‐shell finite‐element method is adopted to analyze the ultimate strength of compressed stiffened plates with different stress gradients, the interaction curves of thin‐walled square box sections, and the interactive instability of axially and eccentrically loaded square box columns. The principal modes of initial imperfections are taken into account in analysis. Comparison between the results of the prevailing specifications and the theory of this paper is presented. Errors of the specifications are checked. Equations for calculating the ultimate strength of centrically loaded and bending stiffened plates and thin‐walled square box sections are proposed based on the theoretical results. A simple interaction equation is presented for calculating the ultimate strength of eccentrically loaded sections. And, finally, effective design methods for axially and eccentrically loaded columns are suggested. The results of the suggested methods are in good agreement with those of the finite‐element method.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Cold‐formed steel design manual. (1986). American Iron and Steel Institute (AISI), Washington, D.C.
2.
Dewolf, J. T., Pekoz, T., and Winter, G. (1974). “Local and overall buckling of cold‐formed members.” J. Struct. Engrg. Div., ASCE, 100(10), 2017–2036
3.
“GBJ18‐88.” (1988). Specification for the design of cold‐formed thin‐walled steel structures (in Chinese), China.
4.
Guo, Y., and Chen, S. (1989). “Elastic‐plastic postbucking interaction analysis of cold‐formed thin‐walled section by finite strip method.” Stability of Metal Struct.: Proc., 4th Int. Colloquium on Struct. Stability, Asian Session, Beijing, China.
5.
Hancock, G. J. (1981). “Interaction buckling in I‐section columns,” J. Struct. Engrg. Div., ASCE, 107(1), 165–179.
6.
Kalyanaranan, V., Pekoz, T., and Winter, G. (1977). “Unstiffened compression elements.” J. Struct. Engrg. Div., ASCE, 9(103).
7.
Rrekshanandana, U., Usami, T., and Kerasudlki, P. (1981). “Ultimate strength of eccentrically loaded steel plates and box sections.” Computer and Struct., 13(4), 467–481.
8.
Shen, Z., and Zhang, Q. (1989). “Finite element method for interaction between local and overall instability of thin‐walled steel members.” Stability of Metal Struct. : Proc., 4th Int. Colloquium on Struct. Stability, Asian Session, Beijing, China.
9.
Shien, T. W., and Yei, L. T. (1973). “Post local‐buckling behavior of thin‐walled columns.” Proc., 2nd Conf. on Cold‐Formed Steel Struct., University of Missouri, Rolla, Mo.
10.
Sridharan, S., and Ahraf Ali, M. (1988). “Behavior and design of thin‐walled columns.” J. of Struct. Engrg., ASCE, 114(1).
11.
Zhang, Q., and Shen, Z. (1990). “Curved shell finite element method for the nonlinear problems of plates and shells.” J. Shanghai Mech., 11(3), 1–15.
12.
Zhang, Z. (1989). “Stability of axially loaded compression members of cold‐formed steel sections.” Stability of Metal Struct.: Proc., 4th Int. Colloquium on Struct. Stability, Asian Session, Beijing, China.
Information & Authors
Information
Published In
Copyright
Copyright © 1991 ASCE.
History
Published online: Nov 1, 1991
Published in print: Nov 1991
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.