: Always double-check your units (e.g., kg vs. tonf-s²/m) to ensure the values align with your manual seismic weight calculations. table directly to for further reporting?
After running the analysis, you can access the data by following these steps: Go to the menu. Select Show Tables . Expand Structure Output . Expand Other Output Items . Check Mass Summary by Story . etabs mass summary by story
Ensure your model is fully analyzed (press F5 ). : Always double-check your units (e
Are you encountering a between your manual calculations and ETABS? After running the analysis, you can access the
While the main table focuses heavily on translational masses ( Mass X and Mass Y ), ETABS also calculates around the vertical Z-axis (often labeled as MMI or found in the Centers of Mass and Rigidity table). Rotational mass is critical because it dictates how much the building will twist under accidental or inherent eccentric lateral loading. Step-by-Step Verification and Troubleshooting
: Vertical mass (included if "Include Vertical Mass" was selected in the Mass Source). Sum UX / Sum UY : Cumulative mass from the top down to that specific story. : The equivalent weight of the story mass (Mass × Computers and Structures, Inc. 4. Verification Tips Manual Check
Understanding ETABS Mass Summary by Story: A Comprehensive Guide