under the purview of the Cold-Formed Steel Research Consortium. The research was conducted by Benjamin Schafer, Ph.D. A series of spreadsheets were developed to provide engineers with a clear and efficient means to predict the strength of studs with both discrete bracing and sheathing bracing. The testing indicated that sheathing bracing dominates the braced stud response and that brace forces in discrete braces do not accumulate when sheathing is present. A focused series of experiments on wall stud assemblies in compression with different combinations of discrete bracing and sheathing bracing were completed. “ RP20-4: Cold-Formed Steel Bracing Design Using Combinations of Discrete and Sheathing Bracing” summarizes efforts related to establishing the behavior and design of cold-formed steel wall assemblies potentially braced by discrete steel bracing and wall sheathing. The American Iron and Steel Institute (AISI) has published two new cold-formed steel research reports: “RP20-4: Cold-Formed Steel Bracing Design Using Combinations of Discrete and Sheathing Bracing,” and “RP20-5: Structural Design Example – Four Span Metal Building Z-Purlin Line Supporting a Standing Seam Roof.” Both are available for free download at and.
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