Anchor Bolt Custom Head Bearing Area
When Custom Head is
selected, user shall key in the
A
brg value manually in this
field.
A
brg is the
net bearing area of the head of anchor
bolt.
It's used in the anchor pullout and side blowout
resistance calculation.
The custom head A
brg can be
calculated as
A
brg = (head area - anchor rod shank area) ,
which is
shown as hatch area below.