IFC 4.3.1.0 (IFC4X3_ADD1)

8.19.3.19 IfcStructuralLoadTemperature

8.19.3.19.1 Semantic definition

An instance of the entity IfcStructuralLoadTemperature shall be used to define actions which are caused by a temperature change. As shown in Figure 8.19.3.19.A, the change of temperature is given with a constant value which is applied to the complete section and values for temperature differences between outer fibres of the section.

Structural load temperature
Figure 8.19.3.19.A — Structural load temperature

8.19.3.19.2 Entity inheritance

8.19.3.19.3 Attributes

# Attribute Type Description
IfcStructuralLoad (1)
1 Name OPTIONAL IfcLabel

Optionally defines a name for this load.

Click to show 1 hidden inherited attributes Click to hide 1 inherited attributes
IfcStructuralLoadTemperature (3)
2 DeltaTConstant OPTIONAL IfcThermodynamicTemperatureMeasure

Temperature change which affects the complete section of the structural member, or the uniform portion of a non-uniform temperature change.

3 DeltaTY OPTIONAL IfcThermodynamicTemperatureMeasure

Non-uniform temperature change, specified as the difference of the temperature change at the outer fibre of the positive y direction minus the temperature change at the outer fibre of the negative y direction of the analysis member.

4 DeltaTZ OPTIONAL IfcThermodynamicTemperatureMeasure

Non-uniform temperature change, specified as the difference of the temperature change at the outer fibre of the positive z direction minus the temperature change at the outer fibre of the negative z direction of the analysis member.

Table 8.19.3.19.B

8.19.3.19.4 Formal representation

ENTITY IfcStructuralLoadTemperature
 SUBTYPE OF (IfcStructuralLoadStatic);
	DeltaTConstant : OPTIONAL IfcThermodynamicTemperatureMeasure;
	DeltaTY : OPTIONAL IfcThermodynamicTemperatureMeasure;
	DeltaTZ : OPTIONAL IfcThermodynamicTemperatureMeasure;
END_ENTITY;

8.19.3.19.5 References

8.19.3.19.6 Changelog

8.19.3.19.6.1 IFC4

  • attribute DeltaT_Constant name, Changed from "DeltaT_Constant" to "DeltaTConstant"
  • attribute DeltaT_Y name, Changed from "DeltaT_Y" to "DeltaTY"
  • attribute DeltaT_Z name, Changed from "DeltaT_Z" to "DeltaTZ"