Navigation:  Working With Beam Calculations > Beam Supports > Support Fixity

In conventional steel beam calculations, ENERCALC SEL provides several options for users to set fixity at beam end supports:

•Fixed:  translation and rotation restraint, resulting in both force and moment reactions

•Pinned:  translation restraint only, resulting in force reactions

•Free:  No restraint, resulting in no reactions

All interior supports are restricted to pinned only.

ENERCALC for Revit provides the ability to use these same fixity options when launching a beam calculation from the Revit model.  The following rules are used to determine fixity during a beam calculation launch:

•All interior supports are set as pinned

•Free ends are inferred when a Revit beam element end location is found without a support

•Supported ends are set as pinned or fixed by reading the native Revit “Start Connection” and “End Connection” parameters.  

o“None” = pinned

o“Moment Frame” = fixed

o“Cantilever Moment” = fixed