FAQ 002249 EN-US

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Add-on Modules


When designing biaxially stressed slabs in RF-CONCRETE Surfaces, I get a minimum reinforcement in both slab directions. Is it possible to set where the minimum reinforcement should be applied in the module?


According to EN1992-1-1, clause 9.3.1, a minimum reinforcement must be applied in the main stress direction of the slab to ensure ductile behavior. In RF-CONCRETE Surfaces, the option "Reinforcement option with main tension force in the considered element" is selected by default. This means that the greatest tensile force for each reinforcement direction and for the top side (-z) and bottom side (+z) of the slab is searched for. If the greatest tensile force has been found for the individual element, the minimum reinforcement is applied there. Should now, for example For biaxially stressed slabs, the minimum reinforcement is only arranged in the main stress direction, this can be specifically controlled by the user. To do this, open the “Settings of the minimum reinforcement with ductile component behavior”. If you select "Define", you can specifically set in which direction and on which side of the component the minimum reinforcement should be arranged.


Minimum reinforcement RF-CONCRETE Surfaces Biaxial Principal stress direction Ductile component behavior Reinforcement

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  • Updated 03/08/2021

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RFEM Concrete Structures

Add-on Module

Design of reinforced concrete members and surfaces (plates, walls, planar structures, shells)

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