The BUBoxFM symbol uses the following properties.

Section Name

Type the section name. The section name must be unique within the section standard.

Short Name

Type the short name for the section.

EDI Name

Type the Electronic Data Interchange name for the section. This name is used when translating sections through CIMsteel. This property is currently not used.

Unit Weight

Type the weight of the section. The unit weight is defined in mass per length, pound per foot (lbm/ft).

Area

Type the cross-section area for the section.

Depth

Type the depth for the section. The depth is defined in meters.

Width

Type the width for the section. The width is defined in meters.

Perimeter

The outside perimeter distance for the section.

Top Flange Width

Type the width of the top flange.

Top Flange Thickness

Type the thickness of the top flange.

Bottom Flange Width

Type the width of the bottom flange.

Bottom Flange Thickness

Type the thickness of the bottom flange.

Web Thickness

Type the thickness of the web.

Offset Left Web Top

Type the offset distance for the top left web.

Offset Right Web Top

Type the offset distance for the top right web.

Offset Left Web Bot

Type the offset distance for the bottom left web.

Offset Right Web Bot

Type the offset distance for the bottom right web.

CentroidX

Type the vertical distance from designated member edge to the centroidal axis.

CentroidY

Type the vertical distance from designated member edge to the centroidal axis.

Ixx

Type the moment of inertia for the section's local x-axis.

Zxx

Type the plastic section modulus for the section's local x-axis.

Sxx

Type the section modulus for the section's local x-axis.

Rxx

Type the radius of gyration for the section's local x-axis.

Iyy

Type the moment of inertia for the section's local y-axis.

Zyy

Type the plastic section modulus for the section's local y-axis.

Syy

Type the section modulus for the section's local y-axis.

Ryy

Type the radius of gyration for the section's local y-axis.

J

Type the torsional moment of inertia for the section.

Cw

Type the warping constant for the section.

ro

Type the polar radius of gyration about the shear center.

H

Type the flexural constant for the section.

IsHollow

Specify if the cross-section is hollow or not. For this cross-section, the default value is True.

IsSymmetricAlongX

Specify if the cross-section is symmetrical along the local x-axis. For this cross-section, whether or not the cross-section is symmetrical about the x-axis depends on dimensional values.

IsSymmetricAlongY

Specify if the cross-section is symmetrical along the local y-axis. For this cross-section, whether or not the cross-section is symmetrical about the y-axis depends on dimensional values.

Symmetries about the x- and y-axes are defined by design properties only. The Flange Width Extension (top and bottom) property is not a design property; therefore, the symmetry calculation is not affected by this property. This non-affect can cause discrepancies between the symmetry of the cross-section graphic and the IsSymmetricAlongX and IsSymmetricAlongY properties when non-zero width extensions are defined.