Etabs Mass Summary By Story

Understanding Mass Summary by Story in ETABS In structural engineering, the Mass Summary by Story is a critical output in

Step 3: Units Conversion

  • Story 1 to 5: U1 Mass = 61.2 each.
  • Total mass = $5 \times 61.2 = 306.0 \text N·s²/m$.
  • Total seismic weight = $306.0 \times 9.81 = 3002 \text kN$.

Mass Source

The values in the summary table are derived directly from the definition ( Define > Mass Source ). ETABS calculates mass based on three primary settings: etabs mass summary by story

Check 2: Torsional Mass Ratio (R3)