Stringers Flight and Landing Structure

This page is shown in the Stair Settings tree structure

  • if the Flight or Landing Structure is set to Stringers Only, or
  • if the Stair has any other Flight Structure that uses Stringers

    See Choose Structure Type.

Select Stringer to Edit

Edit the left and right stringer separately, as needed.


EditOneStringer.png

Alternatively, check Uniform Stringers on Left and Right, to apply the same settings to both Stringers.

Note:

  • Stringers attributes must be set separately for Flight and Landing.
  • The Connection and Ending settings are included in the “uniform” settings. If you want to use identical Stringers but with varying connections (e.g. to the Landing), you must uncheck the Uniform box!

    StringersFlight.png

Preview and Geometry

Choose a GDL component from the pop-up to serve as the Stringer.

Note: The Open Stringer is available as a Beam. On the Structure page, choose Beam as the Flight Structure, then choose the Open Stringer component from the Beam-Flight node.

See Use Open Stringer (Beam Flight Structure).

For a Flight Stringer: Choose a shape for the Stringer, either flat or stepped.


StringerShape.png

StringersSteppedStraight.png

Add End Plates

End plates can be placed at Stair top and/or bottom (for a Flight Stringer), or at Lead End and/or Trail End (for a Landing Stringer).

The chosen Stringer’s settings are in the panel below.


StringerComponentSettings.png

Define components as Core/Finish/Other

In the Representation section of the Settings dialog: set the components as Core/Finish/Other. (When editing Beam, Cantilever, and Stringer structures: uncheck the "Uniform Component Types" to set each component separately.)

Defining component types in this way allows you to control their display via Partial Structure Display. For example, to display structure-only coordination views, choose "Core only" as the view's Partial Structure Display setting. This will hide stair components that are defined as "Finish" or "Other".

Partial Structure Display of stair components is supported in views based on the 3D model (e.g. Sections). In Floor Plans and Ceiling Plans, stairs are displayed as symbols and are not affected by Partial Structure Display.
Note: For profile components, set their type in the Profile Manager.

Profiled Stringer: Special Options

  • The profile Stringer can be mirrored: For example, place mirror-image Z-shaped profile stringers on both sides of the Stair.

    MirrorProfileStringers.png

    Z-Profile Stringers - Mirrored

  • Adjust the Profile’s Anchor point (by default, it is the point defined as the Profile Origin) using the pop-up.
  • Important: If using the Profile Origin as Anchor Point, make sure that the Profile Origin is defined at the top of the profile, to ensure correct connections. (Alternatively, set the Anchor Point to one of the “Top” options in the pop-up.)

    RightStringerMirror.png

Winder Stair with Stringers

If a winding Stair uses Stringers on both sides, the inside Stringer cannot automatically follow the steeply rising Stair geometry. In this case, the program will disconnect the inside Stringer, so that you can adjust it manually as needed.

(The Column at the inside of the Stair is a separate element.)


AdjustWinderStringer1.png
  1. Select the Stair in the 3D window and enter Edit mode.
  2. Select each end of the disconnected Stringer, and use the editing hotspots to drag them into position.

    AdjustWinderStringer2.png

    AdjustWinderStringer3.png
  3. Now the Stringers are in position.

    AdjustWinderStringer4.png