Beam Flight Structure

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

See Choose Structure Type.

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.

BeamFlight3D.png 

Beam Flight Structures: Flat, Stepped, Profiled

Beam Component 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: For a profiled Beam, the default Anchor is the Profile Origin. For correct connections, make sure the Profile Origin is defined at the top of the profile! Alternatively, set the Anchor Point to one of the “Top” options in the pop-up.

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 Component Settings) to add multiple Beams (up to 10) to serve as the Stair’s support structures on all flights.

BeamNumber.png     BeamNumber3D.png

Notes: 

–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).

Add Tread Plates and/or End Plates to Beams

See also Add Tread Plates at Beam Landing.

TreadPlate.png   TreadPlate3D.png

Tread Plate Follows Tread Polygon

EndPlatesDialog.png  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.

SecondarySupport.png 

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