Create Roof Truss Type From Model Lines

• 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

T4R Truss Builder

• 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