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Axial strength of gypsum-sheathed cold-formed steel wall studs
The composite panel of this study consists of two C-section steel wall studs with gypsum wallboard attached to both flanges of the stud with screws at regular intervals. It is assumed that an axial load is applied to the centroid of the gross cross section for each stud. The bracing from the wallboard connected by screws is represented by elastic springs in the analysis. The panel is subject to both flexural buckling and torsional-flexural buckling. Using the differential equation of equilibrium and an energy method, the flexural and torsional-flexural buckling loads are evaluated. Equations to determine the buckling loads are developed considering typical end-conditions. Local buckling effects and nominal buckling stress are determined according to 1986 and 1996 AISI specifications. Predictions and observed strengths from the limited experimental database were in good agreement. The predictions accurately represent the overall torsional-flexural buckling failure for the gypsum board-braced steel wall studs and its independence of stud spacing.
Axial strength of gypsum-sheathed cold-formed steel wall studs
The composite panel of this study consists of two C-section steel wall studs with gypsum wallboard attached to both flanges of the stud with screws at regular intervals. It is assumed that an axial load is applied to the centroid of the gross cross section for each stud. The bracing from the wallboard connected by screws is represented by elastic springs in the analysis. The panel is subject to both flexural buckling and torsional-flexural buckling. Using the differential equation of equilibrium and an energy method, the flexural and torsional-flexural buckling loads are evaluated. Equations to determine the buckling loads are developed considering typical end-conditions. Local buckling effects and nominal buckling stress are determined according to 1986 and 1996 AISI specifications. Predictions and observed strengths from the limited experimental database were in good agreement. The predictions accurately represent the overall torsional-flexural buckling failure for the gypsum board-braced steel wall studs and its independence of stud spacing.
Axial strength of gypsum-sheathed cold-formed steel wall studs
KSCE J Civ Eng
Lee, Young-Ki (author) / Miller, T. H. (author)
KSCE Journal of Civil Engineering ; 4 ; 175-181
2000-12-01
7 pages
Article (Journal)
Electronic Resource
English
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