Strip foundation variation

[mar2805]

Hi guys!
Please look at the picture. Strip footing.

http://imageshack.us/photo/my-images/836/footn.jpg/

Is it safe to assume that all 3 footings will generate the same pressure on soil when loaded with force of same intensity?

If pressure is p=N/A, form here p=N/(0,6x1,0) for every solution.
Only difference that I see here it that 2 right footings must be analyzed for the moment that will appear on the 0,15m lenght.
And because of the smaller height, footing on the right will probably need more reinforcement.
Granular soil is assumed under the footing hence the distubution with bigger pressure concentration in middle part.

 

[hokie66]

I lost interest in your question when I saw that "Image Shack" rubbish.

 

[mar2805]

Better?

 

[Riggly]

Theoretically, if the footing is the same size, and subjected to the same loads (axial, shear, and moment), I would expect the same 'average' pressure. We are all aware that the actual pressure distribution will vary depending on the type of soil and its condition.

 

[mar2805]

So my statement is correct.
Only difference will be in the reinforcement beacuse of the 0,15m lenght offset.