IFC 4.3.0.1 (IFC4X3) development

7.10.2.5 IfcLoadGroupTypeEnum

7.10.2.5.1 Semantic definition

This enumeration is used to distinguish between different levels of load grouping. It allows to differentiate between load groups, load cases, and load combinations.

7.10.2.5.2 Type values

Type Description
LOAD_CASE

Groups LOAD_GROUPs and instances of subtypes of IfcStructuralAction. It should be used as a container for loads with the same origin.

LOAD_COMBINATION

An intermediate level between LOAD_CASE and LOAD_COMBINATION. This level is obsolete and deprecated. Before the introduction of IfcRelAssignsToGroupByFactor, the purpose of this level was to provide a factor with which one or more LOAD_CASEs occur in a LOAD_COMBINATION.

LOAD_GROUP

Groups instances of subtypes of IfcStructuralAction. It shall be used as a container for loads grouped together for specific purposes, such as loads which are part of a special load pattern.

USERDEFINED

A grouping level which does not follow the standard hierarchy of load group types.

NOTDEFINED

The grouping level is not yet known.

Table 7.10.2.5.A

7.10.2.5.3 Formal representation

TYPE IfcLoadGroupTypeEnum = ENUMERATION OF
	(LOAD_CASE
	,LOAD_COMBINATION
	,LOAD_GROUP
	,USERDEFINED
	,NOTDEFINED);
END_TYPE;

7.10.2.5.4 References

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7.10.2.5.5 Changelog

  • item, LOAD_COMBINATION_GROUP