As I read the question it appears that the column is planned to be poured above the joint of the beam to the column. If ACI 318 is the code basis, the options discussed meet the code. Another option to the stagger of the splice proposed(which is probably not feasible if you're using the coupler...
I will assume that you have two or more pumps, equally sized, on common suction and discharge manifolds. Be careful to set your VFD minimum speed for the worst case operating condition, all pumps running and the VFD at minimum speed due to demand. The VFD driven pump will make steam without...
