how to calculate drift on multi-tower building

[LeonRestrepo]

how do i calculate the drift with etabs , when there is no common points between adyacent stories.

when i enter a multi-tower building etabs only gives me the
drifts of stories that have common points with the next story.

 

[radugrosu]

You really have two options.
1. Find points that are reasonably close to the same vertical on each storey of interest and compute the drift yourself.
2. Try harder in finding points on the same vertical and let Etabs compute the drifts. There's no need to find corresponding points from the base all the way to the top, you just need to find them on groups of storeys.

Radu