Footing Design?

[SteelPE]

I have a situation where I have a footing with a large uplift, lateral load and overturning force (not an ideal situation). I have the weight of the footing and soil above the footing resisting these forces. The top of the footing is embedded 4’-0” into the ground due to frost concerns.

When it comes to the soil weight above the footing and the design of the footing for stability, would you use the theoretical “conical” soil above the footing or just the project soil above the footing (see sketch) to resist these forces?

 

[slickdeals]

@SteelPE:
Would you mind posting a pdf of your spreadsheet or the excel file, if you are very generous.

 

[SteelPE]

slick,

I'm not sure about that.... I will have to think about it. What I can tell you is that the spreadsheet was based off the combined footing spreadsheet created by Dr. Daniel T. Li. I took a sample of his spreadsheet and completely rewrote it the way I wanted the numbers run.

 

[BAretired]

dhengr,

You are correct when you say I don't understand the code system and building official authority in the USA but I know what a flood is as there are parts of Canada which get them annually. And as far as flood insurance is concerned, my guess is that flood insurers would not cover damages caused by engineering error or omission. Failing to provide for the effects of a flood in a flood plain constitutes engineering error, and should have been readily foreseen during design, a written variance from the BO notwithstanding.

Personally, I would not assume the risk of ignoring flood potential.

BA

 

[ron9876]

I am with BA. An owner can't relieve you of your professional responsibility. It is the EOR's alone and when you seal drawings it means that to the best of your knowledge that the design complies with the governing code.

They probably have pressure relief for the floor slab.