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Conduct analysis with an analytical model generated automatically while you create a physical model in Revit. Revit generates a physical model to use for documentation and an associated analytical model to use for structural analysis and design.
An analytical model is a simplified 3D representation of the full engineering description of a structural physical model. The analytical model consists of those structural components, geometry, material properties, and loads that together form an engineering system and can be exported to analysis and design applications.