In version 7.0, MiTek has made it easier for you to create sloping roof detail trusses. You now have the ability to enter bottom chord and top chord slopes independently. End types for trusses with differing chord slopes may now be entered using the Detail method.
A truss with a sloping top chord and a flat bottom chord can now be entered easily. Let’s try an example!
First, start a new job with 2x lumber orientation. The best way to do this is to create a new Lumber Scheme that is for these types of trusses. You can then easily switch between lumber schemes in future jobs. We always recommend this approach rather than switching lumber by switching the Truss Application midway through the creation process, as this will ensure proper roof loading and defaults (and will prevent lumber substitution messages later). It’s always best to start from scratch with the correct lumber and Truss Application setting.
Once your job is created with correct lumber, select File, New Truss. Select Roof for the Truss Application and Detail for the Input Method.
Set your TC Slope to .25 and your BC slope to 0, and say OK to exit Basics.
Next, you will see the Details dialog with all of the available end and interior details.
Select the second end detail (Top Chord Bearing). Select the same detail for the right end. Select K-web for your webbing pattern. You will notice that we have improved the webbing by making the verticals perpendicular to the bottom chord, rather than the top chord, since there is often no slope on the bottom chords of this type of truss. No more fixing of each web individually in Versatruss! Simply analyze the truss and you are ready to go.
Now try the same truss with the other lumber orientation. Simply start your job with the opposite orientation from the first example and follow the steps again. Voila! You have now created the truss in the 2x orientation, without having to use Versatruss for any of the creation process.
We are always working to continually improve user productivity in MiTek Component Design, and we hope this new feature does just that!