Answer:
In the RF‑CONCRETE Members add‑on module, you can select the option to consider a precamber due to the temperature gradient under the "Fire Resistance" tab in Window "1.6 Reinforcement". For the calculation, the program internally creates a member load as the precamber of the cross-section.
However, the result beam is a virtual member without any stiffness and without considering any support, not designed to absorb loads. Therefore, an error message appears when starting the calculation if the precamber due to the temperature gradient is selected in RF‑CONCRETE Members for the design of result beams.
