Etabs Mass Summary By Story Info

If you modeled a concrete slab but forgot to assign Self Weight Multiplier = 1 (under ), ETABS will only include the superimposed dead loads (finishes, partitions) and completely ignore the 150 pcf concrete you just modeled.

But when he ran the modal analysis, the building had massive torsion. He spent days adding shear walls. etabs mass summary by story

If you’ve ever run a seismic analysis in ETABS, you’ve probably scrolled past the Mass Summary by Story table. It looks harmless enough—just a few columns of numbers under the Display > Show Tables > Analysis > Results > Structure Output menu. If you modeled a concrete slab but forgot