With the Criteria - Sidesway command, the user can indicate whether a frame is Braced, Unbraced or Partially Braced against sidesway. This affects the method by which the effective length (ke) is calculated for the lateral members. Partially Braced refers to structures that are braced in one direction but not in the other. When Partially Braced is selected the user must specify the range of member orientation, with respect to the global coordinate axes, for which the member is to be considered braced.

Modifying the Sidesway 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.

Refer to the Assign chapter for information on how this criterion can be overridden on a member-by-member basis.