Hi,
I was wondering why in some cases when i want to check torsional irregularity in etabs and use Story Max/Avg Drift from Modal explorer, the software shows both Y and X direction ratio for Earthquake in X direction Or vice versa.
as far as i know when checking for EX with plus and minus Eccentricities, it should only report ratios for X direction not Y!
i should mention that this happen only in few cases!! in most of the time software report only X direction ratio for EX!
thanks in advance for your time.