MAT Thickness

[Robert-32]

Dear Colleagues,

From your common practice, what is the predicted thickness of a RAFT FOUNDATION for a 13-story reinforced concrete building? Soil bearing Capacity is 200 Kn/m2. The distance between columns is about 8 meters.

 

[Klitor]

140cm

 

[dik]

Remove the other posts... you only need to post in a single forum. My reply in the Foundation Engineering forum was:

A WAG, I'd look at something initially between 3' and 4' (1m and 1.5m) thick... do a quick moment and shear calc and see what reinforcing and punching shear you end up with. Concrete strength should be about 4ksi (30MPa) min. It'll be a start.

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik