3d view Box type bridge is not hollow?

Question

Hi 
 I'm doing GP-E-prestressingBasic Ec traning file in RM bridge. I was in assigning table to variable, when Im done and view my model in the 3d view, my bridge is not hollow inside? any idea?

Diether · Answer

Hi, In case you haven't already solved the probelm by now: You have obviously defined a wrong value in the table of the variable bottom slab thickness, which goes right up to the top slab (you can still see a small hollow in that region).