Is it true that no matter how large a building is that the foundation will be designed for a typical pressure related to a soil type? A footing may be designed around 5000 psf foot for a high rise or a three story office building on the same type of soil, you would just expect larger or more footings on a taller building. Correct?
Related to a concrete encased and rebar enforced conduit ductbank passing 3' or so under a 5000 psf footing, it seems like to me there would be little risk of crushing this ductbank. If my concrete is rated for 3000 psi, I would think compression strength would be more than enough to handle this load. Maybe there are complications with tensile and shear forces? Has anyone seen a ductbank run directly under a large footing before? Obviously not ideal, but I could see certain situations where you have no choice given the location of an equipment room and the conditions of the foundation design.
Related to a concrete encased and rebar enforced conduit ductbank passing 3' or so under a 5000 psf footing, it seems like to me there would be little risk of crushing this ductbank. If my concrete is rated for 3000 psi, I would think compression strength would be more than enough to handle this load. Maybe there are complications with tensile and shear forces? Has anyone seen a ductbank run directly under a large footing before? Obviously not ideal, but I could see certain situations where you have no choice given the location of an equipment room and the conditions of the foundation design.