In structural analysis, verifying the mass of your building is just as critical as verifying its stiffness. An incorrect mass distribution leads to incorrect period calculations, base shears, and seismic forces.
Below is a drafted report structure for presenting this data. Structural Mass Summary Report 1. Project Overview ETABS 2026 Model Status: Analysis Completed Mass Source: Defined as [e.g., Self Mass + 25% Live Load] 2. Mass Source Definition
Always do a "back-of-the-envelope" check on a typical floor.
The offset between the CM and CR creates the that drives torsional forces during an earthquake. A deep analysis of the Mass Summary tracks the trajectory of the CM coordinates ($X_m, Y_m$) up the building height.
In structural analysis, verifying the mass of your building is just as critical as verifying its stiffness. An incorrect mass distribution leads to incorrect period calculations, base shears, and seismic forces.
Below is a drafted report structure for presenting this data. Structural Mass Summary Report 1. Project Overview ETABS 2026 Model Status: Analysis Completed Mass Source: Defined as [e.g., Self Mass + 25% Live Load] 2. Mass Source Definition
Always do a "back-of-the-envelope" check on a typical floor.
The offset between the CM and CR creates the that drives torsional forces during an earthquake. A deep analysis of the Mass Summary tracks the trajectory of the CM coordinates ($X_m, Y_m$) up the building height.