Influence of Sheathing-Fastener Connection Stiffness on the Design Strength of Cold-Formed Steel Wall Panels
Publication: Journal of Structural Engineering
Volume 146, Issue 10
Abstract
This paper investigates the bracing effect of sheathing fastener connection on point-symmetric shaped cold formed steel (CFS) studs through full-scale laboratory tests. The test parameters include slenderness of the CFS stud, fastener connection spacing, and sheathing thickness. The test results indicate that the bracing effect of the particle cement board has significantly enhanced the moment capacity of the CFS stud, nevertheless, this was not completely captured by the current design specifications of American Iron and Steel Institute (AISI). The detailed discussion on the unsuitability of the current AISI design method in determining the design moment capacity and failure modes of the sheathed CFS wall stud is presented. In addition, the PCB-fastener connection demand check shows that the provided sheathing configurations are adequate to brace the CFS studs from biaxial bending, which is in contrast compared to the experimental results. Therefore, a new test setup is proposed to accurately determine the stiffness of the sheathing fastener connections to formulate a reliable design method.
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Data Availability Statement
Some or all data, models, or code generated or used during the study are available from the corresponding author by request. The list of data includes (a) the values used for plotting the Fig. (b) Photographs of failure modes of the test specimens.
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Published In
Journal of Structural Engineering
Volume 146 • Issue 10 • October 2020
Copyright
© 2020 American Society of Civil Engineers.
History
Received: Oct 8, 2019
Accepted: Feb 19, 2020
Published online: Jul 21, 2020
Published in print: Oct 1, 2020
Discussion open until: Dec 21, 2020
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