Leaderboard

Your story stiffness is independent of the type of load as long as we are talking about the elastic response (Linear Static). You can use the same story stiffness or calculate yourself manually for each story by applying a 1kips load and then finding out the corresponding deflection and diving 1kip by that deflection,. I don't know why the software isn't showing you. Maybe you aren't doing a linear time history analysis. I am just guessing.