No of Ver. Rebar Effective to Resist Tensile Anchors

---

n_v 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 n_v

---

ACI 318-11 RD.5.2.9