Beam Flight Structure

These settings are available if you chose a Beam Structure type for the Flight.

Beam Structures are GDL elements: Choose a component from the pop-up to serve as the Beam support.


BeamComponentChoose.png

Components include a general Beam; profiled Beam; and Open Stringer (see below).

For details, see Custom Sub-Elements for Stairs and Railings.

Use Open Stringer (Beam Flight Structure)

An “Open Stringer” structure is available from the Beam - Flight component pop-up list.


OpenStringerSettings.png

OpenStringer1.png     OpenStringer2.png

Use Beam Component Settings to position the Stringers. Note the options to match Riser Width to either the Stringers (if they are offset) or the Stair Boundary.

OpenStringerRiserWidth.png   OpenStringerRiserWidthSettings.png

Choose Shape

In Beam Flight Settings, choose a Beam Structure shape: either flat or stepped. Profile components are also available.


BeamShape.png

Below, enter a value for the Beam thickness. Note the feedback in the Preview window.

Figure 1. Beam Flight Structures: Flat, Stepped, Profiled
BeamFlight3D.png

Beam Settings

Use this panel with its tab pages to set the Beam component’s settings.


BeamComponentSettings.png

Beam Anchor Point

The Anchor Point is at the top of the beam: Choose Top Left, Top Middle or Top Right.

Important: To ensure correct connections with profiled Beam, make sure the Profile Origin is defined at the top of the profile!

BeamProfileOrigin.png

See also Profiled Stringer: Special Options .

For Profile definition, see Profile Origin in Profile Editor Window.

Set Number of Beams

Use this control (Style and Dimensions page of Beam Settings) to add multiple Beams (up to 10) to serve as the Stair’s support structures on all flights.

BeamNumber.png     BeamNumber3D.png

Note:

  • Number of Beams must be set (on separate Settings pages) for both Flight and Landing.
  • In Edit mode, you can customize the number of beams per Flight or per Landing, as needed.

    BeamNumberFlight.png

Beam Attributes and Representation


BeamComponentSettings2.png

Depending on the Beam component, set its Building Material and/or choose a Profile. Adjust its values as needed.

Note:

  • Beam attributes must be set separately for Flight and Landing.
  • The “Uniform Building Materials” checkbox enables a single Building Material for the listed Beam components (e.g. Beam, End Plates, Secondary Support).

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.

Add Tread Plates and/or End Plates to Beams

See also Add Tread Plates at Beam Landing.

   TreadPlate3D.png

Tread Plate Follows Tread Polygon

  EndPlates3D.png

End Plates at Top and Bottom

Add Secondary Supports to Beams

For a Beam Flight Structure, you can add additional components to support the Treads.

Go to the Secondary Support tab page, and enable the Secondary Support checkbox.

From the pop-up, choose and set the desired component.

You can control the number of supports at either end of the beam, using the Add or Remove pop-ups:


SecondaryAddRemove.png

SecondarySupportOptions.png     SecondaryBeam3D.png

Beam Flight Support, with Secondary Supports