Third Load Case (Steeple 3)
The third load case accounts for the maximum uplift reaction resulting from the wind
overturning moment that is parallel to the ridge. In our example the -1000 pound concentrated
loads shown below have been calculated as the maximum uplift reaction. Use the same steps
as the first load case, add the point loads. Remember to Set the Current load case field to
"Steeple 3" before beginning.
Next the snow load will need to be deleted:
1. Go to the Loading Icon .
2. Make sure that Uniform Loads is selected in the Select Filter
.
3. Select Delete from the toolbar. Highlight the top chord uniform live, remembering
that live loads are displayed on screen in the color red and then select Enter. Finished
load case is shown below.
