No of Ver. Rebar Effective to Resist Tensile Anchors
nv is the no of vertical rebar
which is effective to resist the concrete
tensile breakout under anchor
bolt tensile load.
In
pin type base plate there is no moment applied
so all anchors
in the group are
uniformly in tension under tensile load.
User can count all
vertical rebars locating within min( 0.5h
ef , 8" )
distance (ACI 318-11 RD.5.2.9) from the exterior anchor's
centerline as
nv
ACI 318-11 RD.5.2.9