FAQ 000737 EN

Calculation RFEM

What does "positive" and "negative" surface mean?


The "+" and "-" for the design internal forces and stresses indicate the side of the surface.

The positive side "+" is the one with the local z-axis pointing outwards.

The design internal force m-y,D+ is, for example, the governing bending moment for the reinforcement on the positive surface side.

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