A column line or stack may comprise of a line of columns braced by framing beams at story levels. A multi-story column stack is created when there are no framing beams at intermediate stories between bracing stories. Unbalanced column moments are easily determined at the braced stories by the process described in Unbalanced Moments . For columns at the intermediate unbraced story levels where no moments can be determined since no beams frame into either the top or bottom of a column stick, moments are based on a linear interpolation of the column moments from the top and bottom braced point moments in the multi-story column stack. Moments due to skip loading at the braced locations are similarly interpolated and assumed for the intermediate unbraced column sticks within the multi-story column stack.

Typical multi-story column have moments at the braced stories but where a multi-story column with an intermediate unbraced story has an applied moment resulting from a stub or a beam with an eccentric reaction but has been released from bracing the story, the applied moment applied is used in lieu of an interpolated moment for the story.