Sway Stability, Snap Through and Fire Boundary Design Checks

The Sway Stability, Snap Through and Fire Boundary Design checks are displayed using the  button in the MasterPort side toolbar. Up to 5 instances of each design check may be applied.

To apply a Sway Stability, Snap Through and Fire Boundary design checks:-

Select the design brief number from 1 to 5, and assign a brief title.

The first three input parameters are similar in all 3 design checks, i.e., Column, Rafter 1 and Rafter 2. Click on the Column cell in the input grid. The cursor will be placed in the column input cell. From the frame geometry area select the column. The member number will be placed in the input cell, and the cursor will move to the next row, ie, Rafter 1 input cell. Select the first rafter member, then the second.

Complete the remaining input data,

Sway Stability: Number of portal bays.

Fire Boundary: Wall and Roof loading. Note that these loadings are the reduced wall and roof dead loads at collapse (in kN/m2).

Snap Through: None.

The calcs will show if the particular check is passing of failing.

Printing and Exporting of these 3 design checks is carried out from within the general checks tabs at the bottom of the screen, and not in the main print manager.

  Print/Export the current design brief, i.e., only the active number of the active design check.

  Print/Export all briefs numbers (which contain data) for all 3 design checks.