When performing an analysis with RF‑CONCRETE Members, I get Error 2212: 'The rib is not supported'. How can I perform the calculation?

Answer

For the correct design of ribs, you should pay attention to the following points:

  • The local z-axis of the rib must be parallel to the local z-axis of the surface.
  • The local z-axis of the rib must be orthogonal to the xy surface plane.
  • The surface type of the connected surface must be a plane.
  • The cross section type of the rib member must be a rectangle.
  • In the case of continuous members, there must be a uniform rib type for the entire set of members.
  • The material of the rib must be the same as the material of the surface.

Keywords

Rib not supported error 2212

Reference

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RSTAB Concrete Structures
CONCRETE 8.xx

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Linear and nonlinear analysis of reinforced concrete members with reinforcement concept

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RFEM Concrete Structures
RF-CONCRETE 5.xx

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Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)

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