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TR.31.8 Mass Modeling

Each load case consisting of a response spectrum requires a mass definition. The following methods may be used to define masses for use with seismic loads.STAAD.Pro.

The following features in STAAD.Pro require mass modeling:
  • static seismic load definitions
  • time history load definitions
  • rigid floor diaphragms
  • response spectrum analysis
TR.31.8.1 Explicitly Defined Weights
TR.31.8.2 Reference Load Mass Tables
TR.31.8.3 Mass Model Using Reference Load
Parent topic: TR.31 Definition of Load Systems
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