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: Identifies each floor level defined in the model.
High mass on a soft story (e.g., heavy parking level with open ground floor) is a collapse risk. Identify this in the summary and re-evaluate your stiffness. etabs mass summary by story
Identifies accidental "double counting" or missing loads. : Identifies each floor level defined in the model
Ensure you have assigned diaphragms to your floor shells. ETABS calculates story mass properties most effectively when floors are constrained as diaphragms. Mass Source: Most modern codes require Mass = StorageLiveLoadcap S t o r a g e cap L i v e cap L o a d etabs mass summary by story
This is the critical part. ETABS calculates mass in three translational directions:
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