IFC 4.3.x development

7.10.2.5 IfcLoadGroupTypeEnum

7.10.2.5.1 Semantic definitions at the entity

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

HISTORY  New enumeration in IFC2x2.

IFC4 CHANGE  LOAD_COMBINATION_GROUP deprecated. Load cases are directly assigned to load combinations with different factors for each load case—load combination pair by means of IfcRelAssignsToGroupByFactor.

Items

LOAD
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 This level is obsolete and deprecated.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.

USERDEFINED

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

NOTDEFINED

The grouping level is not yet known.

7.10.2.5.1 Formal representations

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