STAAD.Pro HelpModelingM. Loading Your ModelM. Load Items M. Load Items Individual load items are added to primary load cases. M. To add selfweight loadTo add the calculated weight of the structure objects as a load item, use the following procedure. M. To add a nodal loadTo add forces or moments that act a nodes, use the following procedure. M. To add a support displacementTo add a support displacement to a supported node, use the following procedure. M. Member Load Items M. Plate, Surface, Area, and Solid Load Items M. To calculate the structure frequencyTo calculate the frequency of the structure for a load case, use the following procedure. M. To add a hydrostatic load to objectsTo assign a hydrostatic load to members or plate elements, use the following procedure. M.Enclosed Zone LoadsAn enclosed zone is a method to apply a perpendicular area load to supporting members.Parent Topic: M. Loading Your ModelRelated ConceptsG.15 Loads