Bearing capacity - given EQ

[LAMEngineer]

Hello,

The handbook gives a version of the ultimate bearing capacity that I am not familiar with in section 3.4.2.1-
Bearing Capacity Equation for Concentrically Loaded Square or Rectangular Footings

There are so many videos and literature out there on bearing capacity, but if anyone is familiar with this particular equation from the PE handbook version 1.1, any help would be greatly appreciated.

 

[psustruct]

For those of us we do not have the handbook, you will need to include that snippet for discussion.

 

[steel]

For those of us we do not have the handbook, you will need to include that snippet for discussion.

I mean it is a free download

https://account.ncees.org/reference-handbooks/

 

[psustruct]

Oh, thanks. I thought they were charging a fee like everything else they do. HAHA. THanks.

 

[psustruct]

It appears to be a direct copy of the AASHTO table 10.6.3.1.2a-3 in the 7th edition. Not sure if it is the same table in other editions.

That being said, I am not very familiar with AASHTO, but maybe you can narrow you search down to AASHTO design examples.
https://www.cedengineering.com/userfiles/Geotechnical Engineering Shallow Foundations R1.pdfhttps://dot.ca.gov/-/media/dot-medi...ervices/202102-gm-shallowfoundations-a11y.pdf

 

[LAMEngineer]

Thank you both, example 8-1 on page 8-21 in the FHWA soils and foundations reference manual that @psustruct pointed out was referenced in the NCEES reference handbook really cleared things up for me after reading through the section.

I had originally posted because the solution to a problem I was looking at gave different bearing capacity factors than the table & equations in NCEES reference manual. It makes sense now, reading that highlighted statement on page 8-19 of the FHWA manual there are differences in the factors depending on the source material. I am glad I spent the time reviewing this, hopefully it comes in handy during the exam.

Thanks again,
Taking the construction exam (attempt 2) on 4/20!