PCA's "Building Movement and Joints" recommends cutting every
other horizontal bar at vertical control joints in above-grade,
exterior, cast-in-place concrete building walls, to help induce
cracking at the joints.
In addition to crack-control considerations, other issues include
code minimum required reinforcement at the joints, vertical shear
transfer across the joints, and wall segment stiffnesses (for center-
Assuming long (100' or more) cast-in-place building walls are (or
were) being designed by members of this listserve... I'm interested
in whether cutting every other bar is (or was) standard practice, or
whether it is (or was) more common to terminate all bars except
chords and collectors.
D a v e E v a n s
T N H, I n c.