What does "positive" and "negative" surface mean?
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.
Have you found your question?
If not, contact us or send us your question via the online form.
Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements