Column Web Panel-Zone Shear (AISC 360 J10.6)
The AISC 360-16 J10.6 panel-zone shear strength of a moment-connection column web, both branches: basic Rn = 0.60 Fy dc tw (J10-9) and the flange-stiffened bonus (J10-11, allowed only when panel-zone deformation is in the analysis), against the joint demand, with a doubler-plate flag. The moment-frame joint often fails here first.
Formula and source
Rn_basic = 0.60 Fy dc tw (J10-9); Rn_pz = Rn_basic [1 + 3 bcf tcf^2/(db dc tw)] (J10-11); phiRn = 0.90 Rn; demand = sum(Mf)/(db - tf) - Vcol.
The AISC 360-16 Section J10.6 panel-zone (web) shear strength, Eq. J10-9 and J10-11, by name.
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