AISCAISC 360-22
TablesC-K additional requirements for HSS and box-section connections

Rectangular HSS

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ConditionEffective SectionYielding
[Diagram]Aeb = BetbTension or
Compression Yielding Rn = FybAeb (Punching) Shear Yielding Rn = 0.6Fyt(2tb + 2Bep)
[Diagram] - Not present for T- or Y-connectionAeb = (Be + HbBb + Hb) AbTension or
Compression Yielding Rn = FybAeb (Punching) Shear Yielding Rn = 0.6Fyt(2Hb + 2Bep)
Branch(es) under In-Plane
Bending T- and
Cross-Connections
[Diagram] - Not present for T-connection
Zeb = Zb (1 - BeBb) BbHbtbTension or
Compression Yielding Mn = FybZeb (Punching) Shear Yielding Mn = 0.6Fyt x (2tb + Hb) (Hb2)
Branch(es) under
Out-of-Plane Bending T-
and Cross-Connections
[Diagram]
Zeb = Zb - 0.5 (1 - BeBb)2 Bb2tbTension or
Compression Yielding Mn = FybZeb (Punching) Shear Yielding Mn = 0.6Fyt(2tb + 2Hb) x (Bb - tb)

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