Roof.cpt
The attached file is for a suspended slab. Deflection seem to be very high in the middle which is unrealistic. It is expected to be about 40mm with the amount of tendons provided but RAM shows 400mm?!
Any one can help to explain what the issue is? RAM show no errors so assuming the input is correct.
The slab is defined as a one-way slab with no bending stiffness to span in the y-direction (up-and-down on screen). The large deflections result because there is no member to span between the y-direction walls in areas like the one marked in the image below.
To resolve the problem, either change the slab behavior to "two-way slab" or model a beam element to span between the walls.
Thank you Karl for the useful comment.