As per IS-1893 (or your local code), include the required percentage of live load (typically 25% for < , 50% for >
The is not just a report; it is a diagnostic tool that validates the seismic foundation of your structure. By meticulously defining the Mass Source , using Specified Load Patterns , checking Lateral Mass Lumping , and validating with manual calculations, engineers can ensure an accurate and safe design. etabs mass summary by story better