Slab on grade; concentrated loads
Slab on grade; concentrated loads
(OP)
When a concentrated load is placed on a slab on grade
how do you determine the soil pressure distribution
and if the pressure is within the allowable soil limits?
Since the slab confines the soil the allowable bearing pressures typically listed for a soil such as clay become
much larger.
how do you determine the soil pressure distribution
and if the pressure is within the allowable soil limits?
Since the slab confines the soil the allowable bearing pressures typically listed for a soil such as clay become
much larger.






RE: Slab on grade; concentrated loads
RE: Slab on grade; concentrated loads
Typical concentrated loads may be wheel loads from fork trucks or post loads from racks, equipment or platforms. Design charts are available for wheel loads and post loads in "Designing Floor Slabs On Grade" by Ringo and Anderson.
For the lighter concentrated loads, bearing pressures often are not of much concern as is the positive and negative bending in the slab. If the slab is designed properly for bending, it often can spread the load out sufficiently for bearing pressure.
RE: Slab on grade; concentrated loads
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RE: Slab on grade; concentrated loads
PCA also publishes a manual for designing slabs on grade. It is also good.
RE: Slab on grade; concentrated loads