With the Criteria > Effective Length command, ke major and minor values are set for the beams, columns and braces in the structure. For columns, the effective length values can be calculated by the program using the AS4100-98 figure 4.6.3.3 chart or can be specified by the engineer.

Modifying the effective length criteria after a Code Check has been performed will invalidate the results of that Code Check. The model will be redrawn on the screen in its original colors (rather than the Code Check colors) indicating that the Code Check must be re-run.