round concrete column
 

round concrete column
is there a limitation on the spacing of the vertical reinforcing around the perimeter of a round concrete column. with round ties, is it to be limited to 6" per aci 318? or do round ties let me go further than 6"?
i think you can go further than 6", but you have to have at least 8 bars (aci 10.9.2)and you have to meet the 1% minimum. in 7.10.5.3 - the last sentence appears to imply that if you use circular ties, the 6" space limit doesn't apply.
try the link below-
actually aci 10.9.2 requires only 4 bars minimum for square or circular ties, and 6 bars minimum for spirals.
aside from meeting the 1% min and 8% max steel area i don't think the vertical bar spacing matters for circular ties.
i think what jae was implying is when 8 bars or more are provided you do not have to consider the bar placement when considering its moment strength.