existing slab fot tank support
existing slab fot tank support
(OP)
we have a existing warehouse slab d=8" 4000 f'c , someone decided to put #4's @ 10" c-c on top of slab no bottom steel ( ?) , we ran some numbers and came up with bottom surface concrete tension @ 110 psi looking for allowable concrete tension I seem to remember 75 psi , looking for reference. Thanks Bob






RE: existing slab fot tank support
RE: existing slab fot tank support
RE: existing slab fot tank support
RE: existing slab fot tank support
RE: existing slab fot tank support
RE: existing slab fot tank support
RE: existing slab fot tank support
Dik
RE: existing slab fot tank support
Your reinforcing ratio is 0.0025, well over ACI minimum for temperature steel.
As MotorCity notes, it would be good to check concrete punching shear capacity due to the point load. Your load is not extreme and I expect that check to be adequate.