Length

The net overall length of the linear member, or the PQ member length minus cutbacks.

AreaCrossSection

The ideal cross section area of the linear member as specified in the section file. That is, the manufactured geometry, and not the modeled geometry which contains details such as fillets not present in the Structural model.

Ideal section

— Typically the section file contains a dimensional element with an “A” attribute representing the ideal area. If a section does not have an area attribute value, the Structural Quantity is published as zero.

— Normally, AreaCrossSection has a larger value than the AreaCrossSectionModeled property.

AreaCrossSectionModeled

The as modeled geometry of the linear member in the Structural model. That is, the modeled geometry representing the manufactured geometry which does not contain details such as fillets.

— Normally, AreaCrossSectionModeled has a smaller value than the AreaCrossSection property.

FeatureVolume

The volume occupied by subtractive features such as web openings.

VolumeGross

The idealized gross volume as calculated by:

VolumeGross = AreaCrossSection x Length

VolumeGrossModeled

The gross volume as represented by the actual geometry of the modeled linear member. It does not include subtractions from Features.

VolumeNet

The net volume calculated by subtracting the FeatureVolume from the VolumeGross.

VolumeNetModeled

The net volume calculated by subtracting the FeatureVolume from the VolumeGrossModeled.

UnitWeight

Is a direct lookup from the section file.Typically the section file contains a dimensional element with a “W” attribute representing the unit weight. If a section does not have a unit weight attribute value, the Structural Quantity is published as zero.

MaterialDensity

Is a direct lookup from the dataset Component file. Material density defines the weight per unit volume of the material (Steel, Concrete) associated with the dataset part.

LengthXUnitWeight

The weight of the linear member as calculated by:

LengthXUnitWeight = Length x UnitWeight

If a section does not have a material density attribute value, the Structural Quantity is published as zero.

VolumeGrossXDensity

The idealized total weight as calculated by:

VolumeGrossXDensity = VolumeGross x MaterialDensity

VolumeGrossModeledXDensity

The total modeled weight as calculated by:

VolumeGrossModeledXDensity = VolumeGrossModeled x MaterialDensity

VolumeNetXDensity

The net weight as calculated by:

VolumeNetXDensity = VolumeNet x MaterialDensity

VolumeNetModeledDensity

The net weight as calculated by:

VolumeNetModeledXDensity = VolumeNetModeled x MaterialDensity