Buckling of Suspended I‐Beams
Publication: Journal of Structural Engineering
Volume 116, Issue 7
Abstract
This paper investigates the elastic flexural‐torsional buckling of I‐beams supported (suspended) symmetrically by cables or chains, as might be encountered in practice in a lifting operation. The governing differential equations of minor axis flexure and torsion are derived for suspended I‐beams subject to symmetrical concentrated loads and/or uniformly distributed load. The boundary conditions corresonding to symmetrical and antisymmetrical buckling mode shapes are fully examined. Parameters influencing the buckling behavior of suspended I‐beams are identified. The solution procedure using the finite integral method is briefly described. Theoretical predictions of elastic buckling loads compare very well to results from a series of small‐scale aluminium I‐beam experiments. A theoretical study to illustrate the influence of some of the many variables affecting the buckling behavior of suspended beams is presented.
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References
1.
Brown, P. T., and Trahair, N. S. (1968). “Finite integral solution of differential equations,” Civ. Engrg. Trans., Inst. of Engrs., Australia, CE10(2), 193–196.
2.
BHP hot rolled products. (1985). Broken Hill Proprietary Co., Sydney, Australia.
3.
Galambos, T. V. (1968). Structural members and frames. Prentice Hall, Englewood Cliffs, N.J.
4.
Kitipornchai, S., and Dux, P. F. (1987). “Buckling and bracing of elastic beams and cantilevers.” Civil Engineering Practice Vol. 1—Structures, P. N. Cheremisinoff et al., eds., Technomic Publishing Co., Lancaster, Pa., 501–520.
5.
Kitipornchai, S., Dux, P. F., and Richter, N. J. (1984). “Buckling and bracing of cantilevers.” J. Struct. Engrg., ASCE, 110(9), 2250–2262.
6.
Kitipornchai, S., and Richter, N. J. (1978). “Elastic lateral buckling of I‐beams with discrete intermediate restraints.” Civ. Engrg. Trans., Inst. of Engrs., Canberra, Australia, CE20(2), 105–111.
7.
Kitipornchai, S., and Trahair, N. S. (1972). “Elastic stability of tapered I‐beams.” J. Struct. Div., ASCE, 98(3), 2535–2548.
8.
Kitipornchai, S., and Trahair, N. S. (1975). “Buckling of inelastic I‐beams under moment gradient.” J. Struct. Engrg., ASCE, 101(5), 2551–2566.
9.
Vlasov, V. Z. (1961). Thin‐walled elastic beams. 2nd Ed., Israel Program for Sci. Translations, Jerusalem, Israel.
10.
Wang, C. M., and Kitipornchai, S. (1986). “Buckling capacities of monosymmetric I‐beams.” J. Struct. Engrg., ASCE, 112(11), 2373–2391.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 116 • Issue 7 • July 1990
Pages: 1877 - 1891
Copyright
Copyright © 1990 ASCE.
History
Published online: Jul 1, 1990
Published in print: Jul 1990
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