E.12.1 Structural curve member

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General Usage
Entity
IfcStructuralAnalysisModel
IfcStructuralCurveMember
IfcStructuralPointConnection
IfcTopologyRepresentation
IfcRelConnectsStructuralMember
IfcBoundaryNodeCondition
IfcStructuralLoadConfiguration
IfcStructuralLoadLinearForce
IfcStructuralCurveAction
IfcRelConnectsStructuralActivity
IfcStructuralLoadGroup
IfcStructuralResultGroup
IfcStructuralPointReaction
IfcStructuralCurveReaction
IfcStructuralLoadSingleForce

This example includes three structural curve members forming a simple frame, and a single load case of a linear distributed load.

The example includes three structural curve members connected in series, forming two columns and a beam, where the columns have rigid boundary conditions with respect to the ground. Each curve member has a material profile set defined using an I-Shape profile of steel material. The profile has properties indicating area and moments of inertia. The material has properties indicating density, modulus of elasticity, modulus of rigidity, and yield strength. One load case is defined, having a constant linear distribution over half of the beam. See Figure 494 for the geometric and topological representation of the structural members.

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Figure 494 — Structural members and actions

 

The load case has calculated results included, consisting of point forces and moments at each point connection on the ground. See Figure 495 for the represenation of the structural members with reactions.

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Figure 495 — Structural members and reactions

 

The IfcRelConnectsStructuralElements relationship links a curve member to a point connection. See Figure 496 for an instantiation diagram.

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Figure 496 — Structural connection graph

 

The IfcRelConnectsStructuralActivity relationship links a load action to a curve member. See Figure 497 for an instantiation diagram.

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Figure 497 — Structural load graph

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