This criterion is not utilized unless the user has selected to consider column slenderness in the Criteria-Analysis dialog.

The sidesway affects the column slenderness calculation by determining if the column is a sway (Unbraced) column (ACI 318-02 §10.13, BS8110:Part2:1985:Sec2.5) or a non-sway (Braced) column (ACI 318-02 §10.12, BS8110:Part2:Sec2.5). Select the appropriate sidesway criteria for each local axis of the member (or specify that the global criteria are to be used for that axis).

After the appropriate values are specified the engineer can assign the criteria to a single concrete member (click on Single), to multiple members (click on Fence) or to all concrete members (click on All). If Single is clicked the dialog will close and a target cursor will be made available. Click on each section that you would like the criteria to apply too. If Fence is clicked the dialog will close and a fence cursor will be made available. Click and drag a rectangle around all the sections that you want the criteria assigned too. Note that the criteria are only assigned to concrete members. To return to the dialog to select a different sidesway criteria click on the right mouse button.

To view which member axes are using the global criteria and which have been overridden select the appropriate option from the View-Members Dialog.