One can notice that ETABS default combination including seismic load (E) is not completely match with basic load combinations at ASCE SEC.2.3.2 (1.2DL+1E +L +0.2S) & (0.9DL+E ). This is because ETABS create combinations mentioned at ASCE SEC.12.4.2.3 which include (vertical seismic load effect 0.2SDS) in addition to (horizontal seismic…
