S.O.G. Bearing Capacities (PLF) 2

[FSUDrew99]

Without trying to buy some books online, does anyone have any PDF's referencing charts for wall thickness/loads applied to S.O.G. over soil types (i.e. 2,000 PSF bearing capacity, etc). Have some walls on a remodel currently that I am moving around to help carry ceiling joists and some roof load (rafter supports, etc). I have some older hand calcs based off wall thickness (2x4,2x6), but want to verify off a design manual. I just don't want to call out a lot of overkill thickened slabs if not needed. I am planning on verifying the S.O.G. thickness as well in the field.

PS- This is in FL if that helps anyone considering frost lines and other criteria that doesn't apply down here, etc.

Thanks in advanced!

 

[SteelPE]

Is this the book I typically use. I have a copy here.

https://www.academia.edu/19858101/5...bs-on-Grade-by-Boyd-c-Ringo-Robert-b-Anderson

Don't know if this is a nefarious website or not.... I would just buy the book if it's available at a decent price as I have referenced is a few times.

Or, you could just cut open the slab and install a haunch.

Edit: could look at this thread about the book:

https://www.eng-tips.com/viewthread.cfm?qid=361829

 

[FSUDrew99]

Looks like I was able to download a copy... Not the best quailty, but it should work.

Which page are you referencing for the SOG wall loading chart?

 

[SteelPE]

You would be in Chapter 5 Slab Design for Column or Wall Loadings.... Pages 49-56

 

[FSUDrew99]

So looks like everything I'm running for the wall load equation is matching with the table, but for the "L" equation, it is hard to determine the bottom right varibal as the scanned image is blurry, but it seems to be an "I" if I continually use 64 I keep getting the table values.

Can you explain this variable? Also the "L" equation represents what? I attached the image from the PDF.

For a North Florida sandy/ compacted subgrade I would also assume to say a conservative k value would be more 200 than it is 100.....

Thanks in adavanced!

 

[SteelPE]

Looks like an I in my book.

It should be easy to check as they give over 70 solutions to those equations..... so plug in I as the variable and see if you get the same answer as the table.

 

[FSUDrew99]

I did the same thing. It seems to work out.

Thanks.

 

[phamENG]

Here's another good reference, if you need it:

CONCRETE FLOOR SLABS ON GRADE SUBJECTED TO HEAVY LOADS