Composite Shear Stud Strength and Count (AISC 360-22 I8)
Qn = 0.5 Asc sqrt(f'c Ec) <= Rg Rp Asc Fu, studs each side = V'/Qn. A 3/4 in stud, f'c 4000, Ec 3.64e6, Fu 65, Rg 1.0, Rp 0.75 -> Qn_calc 26.7, cap 21.6 kip governs; V' 400 -> 19 studs; a weak-position Rp 0.6 raises it to 24. Deck orientation and stud position matter. The engineer of record governs.
Formula and source
Qn = 0.5 Asc sqrt(f'c Ec) <= Rg Rp Asc Fu; studs each side = ceil(V' / Qn).
AISC 360-22 §I8.2a nominal strength of a steel headed stud anchor, by name.
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