Hi Andrej
I wonder Ram uses design compressive strength (Fpd) to calculate height of compression area (X) or both Fbd and A are number variable. It means Fbd * X = Fs (Fs is the force of tendon), Fbd = 16.7 Mpa(with C25/30 in EC2) => find X
or in my model, to get Fbd = stress in slab due to tendon (smaller than 16.7 Mpa) => find X
I wonder Ram uses design compressive strength (Fpd) to calculate height of compression area (X) or both Fbd and A are number variable. It means Fbd * X = Fs (Fs is the force of tendon), Fbd = 16.7 Mpa(with C25/30 in EC2) => find X
or in my model, to get Fbd = stress in slab due to tendon (smaller than 16.7 Mpa) => find X