Good evening sir, I have increased the plinth beam sections, since got more reinforcement than 1st & second floors, after design due to long spans, I have seen reinforcement reduction in plinth beams and also observed reduction in 1st & 2nd floor also, how it has reduced when no connection by on icreasing d section of plinth beam, I didnt change other parameters. also doubt, is there any reduction of moments in plinth, due to earth support below it.