I am currently working on a building with some rather irregular roofing, and I have 3 different stories assigned to the structure. I am going through the drift outputs, and am attempting to verify that RAM is using the correct height in the drift ratio calculation....mainly that it will correctly take into account the story offsets of the columns associated with the nodes I have specified.
I am going through all my nodes right now verifying and it appears to be doing it correctly, but I am just curious if anyone has run into any issues with the ratio not being calculated correctly, and if there is anything I should look out for in my modeling to prevent possible errors?
The program checks the same plan location for each story and identifies if there is a diaphragm at the adjacent story or not before calculating the story displacement in the drift report. I also like to double check this using nodal displacements when the various diaphragms mostly don't overlap, but it's usually fine. This has been the same for a long time.
When the diaphragms are not rigid using nodal displacements is also a good idea.