The BUTube 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.

Tube Thickness

Type the plate thickness of the tube plate.

Tube Diameter

Type the diameter of the tube.

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, the default value is True.

IsSymmetricAlongY

Specify if the cross-section is symmetrical along the local y-axis. For this cross-section, the default value is True.