Location
Saint Louis, Missouri
Session Dates
18 Oct 1994
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 of the behavior of combined bending and shear. A total of 68 beam specimens, having varying magnitudes of bending moment and shear force have been tested. Based on the findings of this study, it is concluded that the interaction equation employed by the AISI Specification will provide an adequate strength prediction, provided that the individual shear capacity is modified to account for the influence of the web opening. The bending capacity must recognize the strength at the section being evaluated.
Department(s)
Civil, Architectural and Environmental Engineering
Research Center/Lab(s)
Wei-Wen Yu Center for Cold-Formed Steel Structures
Meeting Name
12th International Specialty Conference on Cold-Formed Steel Structures
Publisher
University of Missouri--Rolla
Document Version
Final Version
Rights
© 1994 University of Missouri--Rolla, All rights reserved.
Document Type
Article - Conference proceedings
File Type
text
Language
English
Recommended Citation
LaBoube, Roger A.; Shan, Ming-Yang; and Yu, Wei-Wen, "Bending and Shear Behavior of Web Elements with Openings" (1994). CCFSS Proceedings of International Specialty Conference on Cold-Formed Steel Structures (1971 - 2018). 1.
https://scholarsmine.mst.edu/isccss/12iccfss/12iccfss-session3/1
Bending and Shear Behavior of Web Elements with Openings
Saint Louis, Missouri
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 of the behavior of combined bending and shear. A total of 68 beam specimens, having varying magnitudes of bending moment and shear force have been tested. Based on the findings of this study, it is concluded that the interaction equation employed by the AISI Specification will provide an adequate strength prediction, provided that the individual shear capacity is modified to account for the influence of the web opening. The bending capacity must recognize the strength at the section being evaluated.
