How can I design a slab with downstand beams in RF‑CONCRETE NL? I would like to know the deformations in cracked state. However, this does not seem to work with the entered rib members. Is there any alternative input option?


It is correct that the rib members defined in the model are not taken into account when calculating the realistic deformations in cracked state.
However, you can solve this problem if you do not model the downstand beams as rib members, but replace them with a surface model. Thus, the entire slab can be modeled as a surface structure and designed with RF‑CONCRETE NL in RF‑CONCRETE Surfaces.


Rib Downstand beam RF-CONCRETE NL RF-CONCRETE Surfaces State II Deformations Cracked state Design Slab Surface model

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RFEM Concrete Structures

Add-on Module

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

Price of First License
810.00 USD
RFEM Concrete Structures

Add-on Module

Physical and geometrical nonlinear calculation of beam and plate structures consisting of reinforced concrete

Price of First License
1,300.00 USD