EngDM
Structural
- Aug 10, 2021
- 405
When designing a raft slab in safe, is it possible to stiffen the slab with additional reinforcing to have the slab engage a wider strip of soil below my line load and thus lower the bearing pressure? I have an issue where my load bearing walls are exceeding my factored bearing capacity, but I have existing drawings of an identical building on the same site with the same bearing allowances that was built. My thought is that for the slab to start engaging more width, it would first have to deflect a bit which, soil deflection under load is a failure (Settlement is a different animal). But it was suggested to me to stiffen up the slab to go from, for instance, 3' of engaged width to 4'.
