Cross Bracings in Tapered Systems: Semirigid Ends
Publication: Journal of Engineering Mechanics
Volume 120, Issue 8
Abstract
Several analytical and experimental studies have been recently conducted on the behavior of cross‐bracing systems subjected to out‐of‐plane buckling. Semirigid connections, however, were not considered or modeled. This paper derives and solves for the exact expressions for evaluating the effective length factors of semirigidly connected cross bracings. Moreover, the expressions are derived for tapered systems where the bracings are connected at off‐midspan locations. Parametric solutions for the end flexibility coefficient versus the buckling parameter are graphically displayed to clarify distinct behavior, and solutions for typical cases are provided. In the example cases, a double‐wave mode versus a single‐wave mode is exhibited for the compression and tension members respectively when the tensile and compressive forces are equal, and when the tensile force is zero, both members show a single‐wave mode.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
DeWolf, J. T., and Pelliccione, J. F. (1979). “Cross‐bracing design.” J. Struct. Div., ASCE, 105(7), 1379–1391.
2.
El‐Tayem, A. A., and Goel, S. C. (1986). “Effective length factor for the design of X‐bracing systems.” Engrg. J., 23(1), 41–45.
3.
Kemp, A. R., and Behncke, R. H. (1989). “Parametric study of bracing in lattice towers.” Proc., Sessions Related to Steel Struct. at Struct. Congr. '89, ASCE, New York, N.Y., 452–461.
4.
Kitipornchai, S., and Finch, D. L. (1986). “Stiffness requirements for cross bracing.” J. Struct. Engrg., ASCE, 112(12), 2702–2707.
5.
Knapp, A. E., and Dixon, D. A. (1973). “The use of X‐bracing in fixed offshore platforms.” Soc. Petroleum Engrs. J., 13(2), 75–83.
6.
Mitchell, L. M. (1957). “Correspondence on ‘The design of intermediate vertical stiffness on web plates subject to shear,’ by K. C. Rockey.” The Aeronautical Quarterly, Vol. VIII, November, 395–396.
7.
Rutenberg, A. (1989). Bracing in structures: discrete bracings for axially loaded embers, Industry and Build. Res. Inst., Israel Chamber of Engineers, Tel Aviv, Israel, (in Hebrew).
8.
Segal, F., Levy, R., and Rutenberg, A. (1994). “Design of imperfect cross bracings.” J. Engrg. Mech., ASCE, 120(5), 1057–1075.
9.
Stoman, S. H. (1988). “Stability criteria for X‐bracing systems.” J. Engrg. Mech., ASCE, 114(8), 1426–1434.
10.
Stoman, S. H. (1989). “Effective length spectra for cross bracings.” J. Struct. Engrg., ASCE, 115(12), 3112–3122.
11.
Thevendran, V., and Wang, C. M. (1993). “Stability of nonsymmetric cross‐bracing systems.” J. Struct. Engrg., ASCE, 119(1), 169–180.
12.
Wang, D. Q., and Boresi, A. P. (1992). “Theoretical study of stability criteria for X‐bracing systems.” J. Engrg. Mech., ASCE, 118(7), 1357–1364.
Information & Authors
Information
Published In
Journal of Engineering Mechanics
Volume 120 • Issue 8 • August 1994
Pages: 1803 - 1819
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Jul 7, 1993
Published online: Aug 1, 1994
Published in print: Aug 1994
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.