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2017-12-01

Definition of Signs for Member Moments in RFEM/RSTAB

How are the signs of member moments defined?


Answer:

The bending moment My is positive if tensile stresses occur at the positive member face (in the direction of the z axis). Mz is positive if compressive stresses occur at the positive member face (in the direction of the y axis).

The sign definition for torsional moments, axial forces, and shear forces conforms to the usual conventions: the internal forces are positive if they act in the positive direction at the positive face.


Author

Robert is responsible for technical documentation. He ensures that content is clearly structured, presented in an understandable way, and conveyed with technical precision.



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