This is actually a fairly interesting problem... The 7" slab is in the bottom of a waste water treatment plant... #6 bars 12" @ o.c. d = 3.5" so the steel is at the neutral axis of the slab... The slab has two spans 10.5 and 12.5 feet resting on cold jointed 12" footings on either side..
The...
Did some research and the the way to calc the area is to divide the load per tire by the pressure in the tire...
So if the load per tire is in pounds and you are dividing by pounds per square inch... You will end up with an area in square inches...
Probably, unless of course, the tire is...
I'm attempting to place a CAT 930 or larger on a 7" thick slab an am trying to determine the contact area so I can calculate the load vs the soil bearing capacity.
Any ideas?
2% minimum on asphalt and 0.5% on concrete... Asphalt at less than 2% will have a tendency to have birdbaths and ponds that will eventually result in sub-grade failure... In Southern California any way...
