690x
002561
2019-03-04

Question

When performing a design in 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.