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FAQs
The SJI has not done any research on using joists in partial composite design. Although design equations may be extrapolated for this application, the SJI does not have any confirmation of their applicability.
Smaller diameter welded studs (1/2″ and 5/8″) can be used. The welded stud diameter is based on the forces in the top chord as well as the top chord angle size. Table 4.4-1 and Section 4.5.4 of SJI Composite Joist specifications ANSI SJI 200-2015 contain the design requirement for welded studs.