Assigning Wall Eccentricity

To assign eccentricities of vertical loads in walls, use the following procedure.

Wall eccentricities are assigned automatically when a wall is modeled based on the default criteria specified by selecting Set Defaults > Eccentricities in RAM Modeler.

Note: Eccentricity applies to all walls, but moments due to the eccentricity are only considered in lateral walls in the RAM Frame analysis.

In RAM Modeler, select Layout > Wall > Assign Eccentricity. The Assign Wall Eccentricity dialog opens.

Select an option for the eccentricity definition:

To define eccentricity…	Select…
from the face of the wall	Distance + 1/2 wall thickness
from the center line of the wall	Absolute distance from center line

Type the Distance value in the units indicated. The eccentricity is measured orthogonal to the plane of the wall. The eccentricity is applied to all loads from one way decking and supported gravity beams and joints.
Note: If a rigid link is assigned to a gravity beam supported by a wall, the rigid link overrides the eccentricity assignment.
Select either the Single or Fence graphics mode to assign the eccentricity values to walls.