Etabs Mass Summary By Story May 2026

When you open the table, you will see several key headings. Understanding these is vital for an accurate peer review or design check: The specific level of the building.

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. etabs mass summary by story

By comparing the from this table to the Center of Rigidity (CR) (found in a separate table), you can determine the structural eccentricity. High eccentricity leads to significant torsional (twisting) effects during an earthquake. 4. Tips for Accurate Mass Results When you open the table, you will see several key headings

The center of mass for the entire structure from that story upward. 3. Why This Data Matters A. Seismic Base Shear Verification This is useful for checking the total "weight"

In ETABS, the is one of the most critical outputs for structural engineers. It provides a concise breakdown of how weight is distributed across the height of a building—a factor that directly dictates seismic forces and dynamic behavior.

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

A quick glance at the cumulative mass helps verify if you are working in kips, tons, or kilograms. C. Calculating Eccentricity