I'd like to ask about the standard specification of the concrete foundation of 1,2,and 3 floors building?

Answer 1

http://www.csinet.org/s_csi/index.asp
http://www.arcomnet.com/


You might check with some local engineering/architectual firms, they might break out a piece of their standard spec's for you...

Good luck

Answer 2

If your asking about the PSI of the concrete, gernerally a 3000psi to 4500psi concrete will suffice. The depth of footings depends on the local frost conditions. The the size of the footings depend on the structure above and the soil bearing capacity. If you are designing a building you need to stop and hire a structural engineer to determine sizes and strengths of the building components.

Answer 3

I'm not certain of a Global Standard; as much of what you describe also has municipality codes involved; as well as Zones, that use seasonal conditions, IE: Frost lines, etc.

Without knowing the purpose of the Q, I suggest local contacts to your area.

Obviously, and depending on the type of structure too, there are different codes for commercial and residential structures.

Here in Central FL. for example a single story residence, (most often without a basement, or strict "foundation" might be poured as an 8 inch slab,,, or less. A 3 story structure, even a residence would require substantially more.

Steven Wolf

Answer 4

If you can be more specific with your question perhaps we can help you. Typically, foundations get thicker and deeper as the building gets higher.

Describe your question better and we will see how we can help.