IFC 4.3.0.1 (IFC4X3) development

8.15.4.3 Pset_ProfileMechanical

8.15.4.3.1 Semantic definition

This is a collection of mechanical properties that are applicable to virtually all profile classes. Most of these properties are especially used in structural analysis.

8.15.4.3.2 Applicable entities

8.15.4.3.3 Properties

Name Property Type Data Type Description
MassPerLength IfcPropertySingleValue IfcMassPerLengthMeasure

Mass per length, i.e. mass of a beam with a unit length of extrusion. For example measured in kg/m.

CrossSectionArea IfcPropertySingleValue IfcAreaMeasure

Total area of the cross section (or profile) of the object.

Perimeter IfcPropertySingleValue IfcPositiveLengthMeasure

Perimeter of the object.

Perimeter of the profile for calculating the surface area. For example measured in mm.

MinimumPlateThickness IfcPropertySingleValue IfcPositiveLengthMeasure

This value may be needed for stress analysis and to handle buckling problems. It can also be derived from the given profile geometry or classification and therefore it is only an optional feature allowing for an explicit description. For example measured in mm.

MaximumPlateThickness IfcPropertySingleValue IfcPositiveLengthMeasure

This value may be needed for stress analysis and to handle buckling problems. It can also be derived from the given profile geometry or classification and therefore it is only an optional feature allowing for an explicit description. For example measured in mm.

CentreOfGravityInX IfcPropertySingleValue IfcLengthMeasure

Location of the profile's centre of gravity (geometric centroid), measured along xp.

CentreOfGravityInY IfcPropertySingleValue IfcLengthMeasure

Location of the profile's centre of gravity (geometric centroid), measured along yp.

ShearCentreZ IfcPropertySingleValue IfcLengthMeasure

Location of the profile's shear centre, measured along zs.

ShearCentreY IfcPropertySingleValue IfcLengthMeasure

Location of the profile's shear centre, measured along ys.

MomentOfInertiaY IfcPropertySingleValue IfcMomentOfInertiaMeasure

Moment of inertia about ys (second moment of area, about ys). For example measured in mm4.

MomentOfInertiaZ IfcPropertySingleValue IfcMomentOfInertiaMeasure

Moment of inertia about zs (second moment of area, about zs). For example measured in mm4

MomentOfInertiaYZ IfcPropertySingleValue IfcMomentOfInertiaMeasure

Moment of inertia about ys and zs (product moment of area). For example measured in mm4.

TorsionalConstantX IfcPropertySingleValue IfcMomentOfInertiaMeasure

Torsional constant about xs. For example measured in mm4.

WarpingConstant IfcPropertySingleValue IfcWarpingConstantMeasure

Warping constant of the profile for torsional action. For example measured in mm6.

ShearDeformationAreaZ IfcPropertySingleValue IfcAreaMeasure

Area of the profile for calculating the shear deformation due to a shear force parallel to zs. For example measured in mm². If given, the shear deformation area zs shall be non-negative.

ShearDeformationAreaY IfcPropertySingleValue IfcAreaMeasure

Area of the profile for calculating the shear deformation due to a shear force parallel to ys. For example measured in mm². If given, the shear deformation area ys shall be non-negative.

MaximumSectionModulusY IfcPropertySingleValue IfcSectionModulusMeasure

Bending resistance about the ys axis at the point with maximum zs ordinate. For example measured in mm³.

MinimumSectionModulusY IfcPropertySingleValue IfcSectionModulusMeasure

Bending resistance about the ys axis at the point with minimum zs ordinate. For example measured in mm³.

MaximumSectionModulusZ IfcPropertySingleValue IfcSectionModulusMeasure

Bending resistance about the zs axis at the point with maximum ys ordinate. For example measured in mm³.

MinimumSectionModulusZ IfcPropertySingleValue IfcSectionModulusMeasure

Bending resistance about the zs axis at the point with minimum ys ordinate. For example measured in mm³.

TorsionalSectionModulus IfcPropertySingleValue IfcSectionModulusMeasure

Torsional resistance (about xs). For example measured in mm³.

ShearAreaZ IfcPropertySingleValue IfcAreaMeasure

Area of the profile for calculating the shear stress due to shear force parallel to the section analysis axis zs. For example measured in mm². If given, the shear area zs shall be non-negative.

ShearAreaY IfcPropertySingleValue IfcAreaMeasure

Area of the profile for calculating the shear stress due to shear force parallel to the section analysis axis ys. For example measured in mm². If given, the shear area ys shall be non-negative.

PlasticShapeFactorY IfcPropertySingleValue IfcPositiveRatioMeasure

Ratio of plastic versus elastic bending moment capacity about the section analysis axis ys. A dimensionless value.

PlasticShapeFactorZ IfcPropertySingleValue IfcPositiveRatioMeasure

Ratio of plastic versus elastic bending moment capacity about the section analysis axis zs. A dimensionless value.

Table 8.15.4.3.A

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8.15.4.3.4 Changelog

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