maximum reinforcement yield strain of all
reinforcement in the cross section in tension
d
=
maximum depth of all tensile reinforcement
in section (excluding PT)
Due to very large bar
covers or other unusual conditions, the
"compression" bar will be considered when determining
"d" if the
"compression" bar is in tension.
For details on how the
neutral axis depth limit is related to the code criterion, see
"Unified Design Recommendations for Reinforced...." by
Antoine Naaman in
ACI Structural Journal, pp 200-210, Vol 89,
no.2, April-March 1992