Answer:
There is probably no support against torsion.
Thus, it is necessary to ensure that either the member elastic foundation or one of the nodal supports can absorb the torsion.
Instability of Continuous Beam with Elastic Foundations in RFEM 5
I have modeled a continuous beam with elastic foundations that is stressed by a constant line moment. Why is the message about instability displayed after the calculation?
Author
Mr. Faulstich is responsible for the quality assurance of the RFEM program and provides customer support.
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