In spite of having defined smooth ranges, they are not considered in the design in RF‑STEEL Surfaces. What setting have I missed here?


In order to consider smooth ranges in the design in RF‑STEEL Surfaces, they must always be activated in the detail settings of the add-on module. See Figure 01 with the detail settings in RF‑STEEL Surfaces.


Smooth range Design Internal force Surface internal forces



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RFEM Main Program
RFEM 5.xx

Main Program

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

Price of First License
3,540.00 USD
RFEM Steel and Aluminium Structures

Add-on Module

Stress analysis of steel surfaces and members

Price of First License
1,030.00 USD