Bending and Shear Behavior of Web Elements with Openings
Publication: Journal of Structural Engineering
Volume 122, Issue 8
Abstract
Cold-formed steel C-sections are frequently used as wall studs and floor joists in both commercial and residential construction. To facilitate installation of ancillary systems such as electrical wiring and plumbing, the C-section is manufactured with a web opening. Although the opening offers construction advantages, it may degrade the structural integrity of the member. To quantify the degrading effect of a web opening, a study has been conducted at the University of Missouri-Rolla (UMR). The UMR study included the loading conditions of bending, shear, web crippling, and the combinations thereof. This paper summarizes the results of an experimental study which addressed the behavior of combined bending and shear. A total of 68 beam specimens, with varying magnitudes of bending moment and shear force were tested. Based on the findings of this study, it was concluded that the interaction equation employed by the American Iron and Steel Institute (AISI) specification will provide an adequate strength prediction, provided that the shear and bending capacities are modified to account for the influence of the web opening.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Chow, F. Y., and Narayanan, P. (1984). “Buckling of plates containing openings.”Proc., 7th Int. Spec. Conf. on Cold-Formed Steel Struct., Dept. of Civ. Engrg., Univ. of Missouri-Rolla, Rolla, Mo.
2.
Darwin, D. (1991). “Steel and composite beams with web openings.”Steel design guide series 2, Am. Inst. of Steel Constr., Chicago, Ill.
3.
Davis, C. S., and Yu, W. W. (1973). “Cold-formed steel members with perforated elements.”J. Struct. Div., ASCE, 99(10).
4.
Hoglund, T. (1971). “Strength of thin plate girders with circular or rectangular web holes without web stiffeners.”Rep. of Working Commissions, Vol. 11, Int. Assn. for Bridge and Struct. Engrg., London, England.
5.
Load and resistance factor design specification for steel buildings. (1986). Am. Inst. of Steel Constr., Chicago, Ill.
6.
Load and resistance factor design specification for cold-formed steel structural members. (1991). Am. Iron and Steel Inst., Washington, D.C.
7.
Narayanan, R., and Der-Avanessian, N. G. V. (1985). “Design of slender webs having rectangular hole.”J. Struct. Engrg., 111(4).
8.
Redwood, R. G., and McCutcheon, R. (1968). “Beam test with unreinforced web openings.”J. Struct. Div., ASCE, 94(1).
9.
Shan, M. Y. (1994). “Behavior of web elements with openings subjected to bending, shear and the combination of bending and shear,” PhD dissertation, Dept. of Civ. Engrg., Univ. of Missouri-Rolla, Rolla, Mo.
10.
Specification for the design of cold-formed steel structural members. (1986). Am. Iron and Steel Inst. (AISC), Washington, D.C.
Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 122 • Issue 8 • August 1996
Pages: 854 - 859
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Aug 1, 1996
Published in print: Aug 1996
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.