PCA Method - Slab on grade for multiple storage tanks

[dsanzobr]

Greetings!
Is anyone out there familiar with PCA guide EB075 “Concrete Floors On Ground”?
I would like to know if it will be of any real use before I buy it.
I am tasked with designing a slab on grade foundation to support several fluid storage tanks. The tanks are approx 12' in diameter and 15' tall. There are 6 of them in a 2 x 3 configuration with 4' between tanks. They weigh about 90 kips each. The design approach I am currently examining is in ACI 360R-10 Table A1.2 (attached) in the Appendix. It comes from the PCA guide however, my conditions do not quite match the parameters in the table.
I assume there are multiple tables like this one, or charts, or other formulas to obtain design values for conditions other than what is in this one table. Or maybe there isn't.

Any input or recommendations for other design guides is greatly appreciated.

Thanks!!

 

[Splitrings]

The document you refer to has a short section on uniform loading of slabs on grade. The tables that are shown actually come from the PCA document "Slab Thickness Design for Industrial Concrete Floors on Grade". This document has more supporting info including design equations.

 

[JedClampett]

If you trying to build a water bearing structure, you're in the wrong document. ACI 350 is better, but it won't tell you how to design anything. Design the walls (12 inch minimum) for your lateral fluid pressures. The slab must be able to take the moment and tension from the wall. that means it will be at least as thick as the wall, and probably a little thicker (clearance to reinforcing on concrete poured against soil and all that).
You need 12 inches to get the construction joint waterstop in. You need waterstop because otherwise the CJ's will leak. You need CJ's because if you make too big of a pour, it will crack and guess what, leak. And even if the tanks are small, you'll need a CJ between the wall and the slab.

 

[dsanzobr]

Many thanks!