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On some lines, it is not possible to create a rib in my model. Several error messages appear.

Answer

In most cases, ceilings or walls are connected with each other in a hinged manner so that moments from the floor slab are not transferred into the walls. If a line hinge and a downstand beam (rib) are also assigned to the same line, it is important to which surface the line hinge has been assigned.


Solution
As the rib is usually assigned to the floor slab, the line hinge should be assigned to the wall (see Figure 1). If this is not the case, an error message appears (see Figure 2) and you still have to abort the creation of the rib.

The same is true for line hinges on free slab edges. If a line hinge was created by mistake, RFEM also displays an error message when creating the rib (see Figure 3 and Figure 4).

Keywords

Curve Rib

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RFEM Main Program
RFEM 5.xx

Main Program

Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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