Etabs Mass Summary By Story May 2026

. Double-check that your Mass Source definition reflects your local code.

For professional design reports, you can right-click the table and select . This allows you to create charts showing the mass distribution over the building height, which is a great visual aid for client presentations or calculation packages.

Seismic codes (like ASCE 7 or Eurocode 8) calculate the base shear based on the total "Seismic Weight" ( etabs mass summary by story

If your "Mass Source" (Define > Mass Source) is set to include "Element Self Mass" AND "Loads," but you’ve also manually assigned mass, you might be double-counting.

Ensure your Dead Load pattern has a self-weight multiplier of 1, so the program automatically includes the weight of beams, columns, and slabs. 5. Exporting for Documentation This allows you to create charts showing the

Ensure you have assigned diaphragms to your floor shells. ETABS calculates story mass properties most effectively when floors are constrained as diaphragms. Mass Source: Most modern codes require Mass = StorageLiveLoadcap S t o r a g e cap L i v e cap L o a d

, the total mass in your ETABS summary (multiplied by gravity) should match your hand-calculated dead loads and applicable live load percentages. B. Spotting Modeling Errors etabs mass summary by story

The sum of the mass of the current story plus all stories above it. This is useful for checking the total "weight" of the building at any level.