What is the purpose of the function "Design of longitudinal reinforcement for percentage of utilization" in the setting for nonlinear calculation in RF‑CONCRETE Members? I have selected this option, but the system is unstable anyway. Why?
After entering the support widths in the RF‑CONCRETE Members add-on module and starting the calculation, the following error message appears: "The support width is too wide!" What should I do?
How can I perform the fatigue design of reinforced concrete and prestressed concrete in RFEM 5? I have found a result combination for fatigue, but cannot find the design in the add-on modules.
Why is the "By taking into account the deformation ratio of the longitudinal reinforcement" method inactive in the detail settings for the SLS design in RF‑CONCRETE Surfaces?
How can I retrace the detailed results or the intermediate results of the serviceability limit state design checks in RF‑CONCRETE Surfaces? For the required reinforcement, the SLS info button is inactive.
Is the RF‑CONCRETE Surfaces add-on module able to determine and calculate a required reinforcement with the corresponding diameter for the design without the direct crack width analysis according to EN 1992‑1‑1, 7.3.3?
When starting the calculation in RF‑CONCRETE Surfaces, I get the error message "Failed to calculate the deflection for the result combination". Why? What can I do to solve this problem?
Is it possible in RF‑CONCRETE Surfaces to model a prefabricated slab or an element slab with different reinforcement layouts; for example, a reinforcement layer in a precast element and another reinforcement layer in the cast-in-place concrete extension?
When selecting the nonlinear method of check in the serviceability limit state design, there is the option to export the stiffness of the already cracked structure. Is it possible to recalculate the internal forces with these stiffnesses?
I am designing surfaces in RF‑CONCRETE Surfaces and get a high minimum reinforcement in some areas as a result of the SLS design. In other areas, however, the minimum reinforcement is significantly smaller. Why?