It is not possible in my model to create a rib on some lines. Several error messages appear.

Answer

In most cases, there is a hinged connection between the ceilings or walls in order to prevent the moments from the ceiling slab to be transferred into the walls. If there is also a line hinge and a downstand beam (rib) on the same line, it plays an important role to which surface was the line hinge assigned.

Solution
Since the rib is usually assigned to the ceiling slab, the line hinge should be assigned to the wall (see Figure 01). If this is not the case, an error message appears (see Figure 02) and the creation of the rib must be aborted.

The same applies to the line hinges on free plate edges. If a line hinge has been created by mistake, an error message also appears when creating the rib (see Figure 03 and Figure 04).

Keywords

Curve Rib

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  • Updated 8 November 2020

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