Create Roof Truss Type From Model Lines
Last updated
Last updated
Draw Model line in the plan from one wall core to another wall core (or from-to support elements) at correct level (level of wall’s top)
Start and end points of Model line will also be the start and end points of truss
Start and end points must be in correct positions - middle points (center line) of the heel webs
Select Model line and run the Create Roof Truss Type from Model Lines function directly from Truss+ menu
There are three graphic window commands: Zoom, Pan and Add Web
Colored symbols in the right top tile of the graphic window show all snap types which are visible and can be used when adding new webs
Main geometrical parameters of the new truss boundary are shown; in the bottom tile of the window
Boundary of new truss is divided into the panels: P1,P2, …. Number of panels depend on the number of roof slopes (number of top chord slopes) and the number of bottom chord slopes
With the Add Web command user can draw vertical and diagonal webs
Start and end points of webs connect to the nearest snap points of top and bottom chords
To delete a web – select it and push the Delete button on your keyboard
When the profile of the truss is ready press OK button on the graphic window
New dialog window opens to define a new truss family name and it’s global parameters in the project: ‘Truss Group’, ‘Framing Member Mark’ and ‘Truss Type Description’
Correct selection of Truss Group allows to use this truss in different functions like Generate Trusses by System Grid
‘Family Name’, ‘Framing Member Mark’ and ‘Truss Type’ description depends on the user's wish
New truss family is automatically inserted in place of Model line
Types of chords and webs used in new truss depend on Truss Design Settings – Default truss type for Truss Builder
Number of bottom chords depends on Truss Design Settings – Max distance for bottom chord. Bottom chord splits in the middle of truss or in location of the nearest ridge
This new truss family can be used in other roof framing functions like: Generate Trusses, Copy/Array/AutoArray Truss etc.
New truss family can be used if number of top chord slopes is equal to the number of roof slopes
Truss Builder allows to create a new truss with multi pitched bottom chord for a multi pitched roof as shown in the example
Draw Model line in plan from one wall core to another (or from-to support elements) on correct level (level of wall’s top)
Note: Use Model line to draw desired profile of bottom chord in new created section view
Start and end points of Model line will be start and end points of the truss
Start and end points must be in correct positions: middle points (center line) of the heel webs
Select Model line and run Create Section View by Model Line
Select new Model lines and run the Create Truss by Model Line function from Truss+ menu
Draw webs in the graphical window of Truss Builder
Select Group, write new truss family name and fill values of other parameters. Truss will be saved in your database.
New truss will be created in the place of Model line. Section view will be automatically deleted.
To insert trusses for the remainder of roof - select Copy/Array/AutoArray Roof/Floor Truss - enter parameters and click OK
