FAQ 000303 EN-US

Helpful Questions & Answers

  • Frequently Asked Questions (FAQs)

12/01/2017

000303

Robert Vogl

Calculation

RFEM

RSTAB

How are the signs of the 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. 

Keywords

internal force member internal force moment sign negative positive shear force bending moment

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  • Updated 11/08/2020

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