Section 18.9.3.3
Support Two Way Minimum Reinforcement
For a cantilever span (as
determined by the declaration of supports in the design strip segment), this
criterion is ignored if the section location is inside of L/3 of the support.
For a regular span (as
determined by the declaration of supports in the design strip segment), this
criterion is ignored if the section location closer than L/6 from a support.
For a span with no supports
(as determined by the declaration of supports in the design strip segment),
this criterion is always applied.
See
"Minimum Reinforcement" above for details regarding
which slab/beam face (top or bottom) that the reinforcement will have the
reinforcement added.
Acf is calculated as the maximum of the cross
section area and the cross section depth times the span length. This will not
always exactly match the code requirement
User defined reinforcement
on the appropriate face and bonded post-tensioning that is on the appropriate
side of the centroid is counted toward the requirement. Vector components are
taken of reinforcement and bonded post-tensioning that is not orthogonal to the
cross section.
The location of bonded
reinforcement (the 1.5 h requirement) is not checked.
The number of bars ("4 bars or wires") is not checked.
No check is made to ensure
that the structure is post-tensioned.
