The is not just a table—it is the DNA of your structural model. Garbage mass leads to garbage periods, garbage base shear, and ultimately, an unsafe design.
to each floor and check the "Calculate Diaphragm Center of Rigidity" option in the analysis settings. etabs mass summary by story
To ensure your Mass Summary by Story is flawless, follow these rules: The is not just a table—it is the
In structural engineering, verifying a building's mass distribution is a critical quality control step. In ETABS, the table is the primary tool for validating structural weight, calculating seismic forces, and checking center of mass locations. To ensure your Mass Summary by Story is
Before you finalize your ETABS model for seismic design:
Do not double-count. If you select "Element Self Mass" and also include Dead Load in "Specified Load Patterns," the mass will be overestimated. Interpreting the Table and Troubleshooting