FAQ 003020 EN-US


Sonja von Bloh Modeling | Structure RFEM

I get the warning No. 469 "Lines [line numbers] lying in the surface intersect each other and share no common node".

If I confirm the warning with "No", error no. 639 "Error no. 11 while generating the FE mesh!" appears. What can I do?


The intersection of the lines stated in the warning must be created with the function "Connect Lines/ Members." To do this, select the "Connect Lines/ Members" function and then draw a window across the elements to be intersected (see Figure 3).

In many cases, stiffening bracings are modeled in the same plane as the surface, and the members are subsequently set eccentrically. Please keep in mind that the lines and thus also the members are automatically integrated into the surface. As the stiffening brace should normally only transfer axial forces, it is recommended to remove it from the surfaces to avoid creating a bond between surface and member. To do this, you have to remove the corresponding lines from the surface in the "Integrated" tab (see Figure 4).


FE mesh Mesh generation Error no. 639 Warning no. 469 Crossing lines


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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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