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How can I correct the Error No. 1663 concerning a missing input of a rib in the member definition?


Rib members are available in RFEM for modeling downstand beams, ribs, and T-beams. These supporting structural units always consist of a flat plate section and a supporting cross-section that lies eccentric to the plate. Together with the specification of the eccentric support cross-section, the ribbed beam combines the entire unit consisting of flat plate cross-section and support cross-section with output of internal forces depending on the effective plate width for the entire package.

Modeling and Determining the Internal Force of Downracks, Ribs, and Tiled Beams

The error message No. 1663 appears if at least one member with the "Rib" member type can not be assigned a connected surface. This situation can be triggered by copying with the additional option to create new members between the source nodes and the newly generated nodes on the basis of a template with a rib definition.

In this case, you have to change the member type from "Rib" to "Beam" for the affected members.


Rib Incomplete 1663


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RFEM Main Program
RFEM 5.xx

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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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