188.8.131.52 in ACI 318 states that:
“Ties shall be arranged such that every corner and alternate longitudinal bar shall have lateral support provided by the corner of a tie…”
I am designing a 24" square column with 4 - #8’s on each face. These bars are less than 6" from each other, so no ties would be required for that provision. However, since I have an even number of bar on each face, “every other bar” is different depending on if I measure from the right side or left side of the column face. My question is, would I need to enclose the two interior bars on each face with a tie, even though they are adjacent within 6" to a tie corner?
See attached detail:
As long as you provide a tie on at least 1 of the 2 interior bars, every other bar is still tied.
Above is a snippet.