In addition, a dynamic analysis can also be performed.

Gravity loads, including Live Load Reduction factors where applicable, are calculated and applied based on the gravity loads specified in RAM Modeler. Based on the types of loads that occur on frame members, the gravity load cases are automatically created. These include DeadLoad, PosLiveLoad, NegLiveLoad, PosRoofLiveLoad and NegRoofLiveLoad. Pos- and Neg- have reference to the direction of the applied load. Pos- indicates downward acting (positive) loads. Neg- refers to upward acting (negative) loads. Neg- loads only occur when the backspan reaction of a cantilevered beam induces an upward acting force on the supporting frame beam or column, or when the user explicitly specifies a load with a negative value.

Nodal load cases and the associated nodal loads are defined and assigned by the user in RAM Modeler. They can be point loads and moments applied at a node.

Lateral story forces and the associated load cases can be generated or explicitly defined by the user using the Loads - Load Cases command. Story force loads can only be applied to a story if the floor diaphragm at that level is specified as rigid in Criteria - General.

Dynamic analyses, including response spectra and Eigen solution, can be specified using the Loads - Load Cases command. Dynamic load cases can only be analyzed if all or some of the floor diaphragms are specified as rigid in Criteria - General.

See Diaphragm for more information on rigid and no diaphragms.