The higher is the basic reinforcement defined in RF‑CONCRETE Surfaces, the greater is the provided required reinforcement determined by the module. Why is that?


In the module, there are the options for reinforcement, which has to be taken into account for the shear resistance analysis. The shear force resistance VRd,c is affected by the applied longitudinal reinforcement. By using the options, you can specify which longitudinal reinforcement should be used to perform the check of shear resistance. The check of shear resistance can be performed by applying the following reinforcement:

  • Calculated required reinforcement
  • Maximum value from required or provided reinforcement
  • Automatic increment of the longitudinal reinforcement so that the shear reinforcement is avoided

For example, if you select the second option and avoid the shear reinforcement with the basic reinforcement, then the basic reinforcement is selected and resulted as the required reinforcement.


Shear reinforcement Check of shear resistance Basic reinforcement Longitudinal reinforcement

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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