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ODA IFC SDK
IfcStructuralReaction Class
Syntax
C++
class IfcStructuralReaction : public IfcStructuralActivity;

A structural reaction is a structural activity that results from a structural action imposed to a structural item or building element. Examples are support reactions, internal forces, and deflections. 

Structural reactions are grouped into IfcStructuralResultGroup_s via the inverse relationship _HasAssignments and an IfcRelAssignsToGroup relationship object. IfcStructuralResultGroup.ResultGroupFor finally refers to the structural analysis model in which the results occur. It is furthermore possible to establish relationships between reactions in one analysis model and actions which they cause in another analysis model. 

For example, a support reaction from one structural system can be taken over as a load onto another supporting structural system. This is expressed by means of the inverse relationship HasAssignments of the reaction and an IfcRelAssignsToProduct relationship object. IfcRelAssignsToProduct.Name is set to 'Causes' and IfcRelAssignsToProduct.RelatingProduct refers to an instance of a subtype of IfcStructuralAction.

This definition cannot be instantiated 

changes 

 

  • IFC4 changes: Inverse attribute Causes deleted; use IfcRelAssignsToProduct via HasAssignments instead
OdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReactionOdIfc4x2__IfcStructuralReaction

File: IfcStructuralReactionAutoImpl.h 

Namespace: OdIfc4x2 

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