When opening an RSTAB 8 file including scissor hinges in RFEM 5, I get an error message saying that the scissor hinges cannot be imported correctly. Why?

Answer

Please check the definition of the scissor hinges in the RSTAB 8 file.

To properly consider the function of a scissor hinge, the scissor hinge of the same type must be specified on the member ends of both members "touching" at a node. If this is not the case, you get the mentioned error message.

Figure 01 - Note Regarding Incorrectly Defined Scissor Hinges

If you have got this error message displayed when opening an RSTAB 8 file in RFEM 5, this may lead to problems in the calculation, for example, the structure becomes unstable due to the incorrect hinge definition (already in RSTAB 8).

Therefore, the problem should be adjusted either already in the RSTAB 8 file or in the RFEM model after the import.

Keywords

Scissor hinge Import Member hinge

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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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RSTAB 8.xx

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The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

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