Pool raft thickness is too much

[mahmudkayra]

The raft thickness saves at 65 cm, but since the area is large, too much concrete goes. I modeled another pool close to this size before and it saved 30 cm in it. It would be nice to have friends who can help with this. Thank you in advance for your help. the project is attached.

 

[Levent Özpak]

Hello, In the raft slab thickness control, the distance between the columns is checked for the clean opening value (Ln). With the "Reinforced Concrete Calculation Axis Edit" command, the value of the reinforcement axles -clear clearance for thickness control- can be intervened. Good work