How does IDECAD calculate beam deflection? Where can we find values such as cracked section moment of inertia (Mcr), Mmax, Icr, compression reinforcement ratio, permanent load time coefficient in ts500? Does anyone know how the deflection values in the report are calculated with their detailed formulas? Especially in the ribbed floor system, very large deflection values occur in cantilever beams (like 50/32). increasing the beam height does not seem to solve this problem.