A better approach involves two distinct definitions:
. Users frequently encounter two different tables to evaluate this: Mass Summary by Story Diaphragm Mass Summary Mass Summary by Story etabs mass summary by story better
Mention if manual meshing was used for walls and slabs, as auto-meshing can sometimes lead to lumping errors CSI Knowledge Base Diaphragm Check: Confirm that Rigid Diaphragms A better approach involves two distinct definitions:
You look at the bottom of your Mass Summary table. There is a number: . verify your definition:
Run a DEAD load case and a MASS load case.
To ensure your mass summary is "better" (more accurate), verify your definition: