FAQ 000737 EN

1 December 2017

Robert Vogl Calculation RFEM RF-CONCRETE

What does 'positive' and 'negative' surface side mean?

Answer

The '+' and '-' sign 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 my,D+ is, for example, the governing bending moment for the reinforcement on the positive surface side.

Keywords

sign positive negative surface side reinforcement

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