#### E.8.1 Structural curve member

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

- Structural members with boundary conditions, loads and structural results with hyperlinks
- Structural members with boundary conditions, loads and structural results source file

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 E21 for the geometric and topological representation of the structural members.

Figure E21 — 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 E22 for the represenation of the structural members with reactions.

Figure E22 — Structural members and reactions

The IfcRelConnectsStructuralElements relationship links a curve member to a point connection. See Figure E23 for an instantiation diagram.

Figure E23 — Structural connection graph

The IfcRelConnectsStructuralActivity relationship links a load action to a curve member. See Figure E24 for an instantiation diagram.

Figure E24 — Structural load graph

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