Answer:
Yes, this is possible using RFEM 5 and the add-on modules RF‑CONCRETE Members and RF‑CONCRETE NL. For RSTAB 8, the CONCRETE add-on module is required.
In the design modules of RFEM 5 or RSTAB 8, you can define "Provided Basic Reinforcement" and perform a nonlinear calculation in the ultimate limit state for this reinforcement.
As a result, you obtain the utilization ratio from the nonlinear calculation assuming the provided longitudinal reinforcement.
Note:
The nonlinear calculation is already included in the CONCRETE add-on module for RSTAB 8. For RFEM 5, you need the RF‑CONCRETE NL add-on module.
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