thickened slab or separate foundation?
thickened slab or separate foundation?
(OP)
What is the rule of thumb when to thicken a slab or just use a separate foundation?
If I have a slab supporting say a water tank/drum with four legs on the slab. Should I thicken the slab or just design a separate foundation with joints between thin and thick slab. Say water tank is 30 kips full of water + wind load.
If I have a slab supporting say a water tank/drum with four legs on the slab. Should I thicken the slab or just design a separate foundation with joints between thin and thick slab. Say water tank is 30 kips full of water + wind load.






RE: thickened slab or separate foundation?
RE: thickened slab or separate foundation?
RE: thickened slab or separate foundation?
can i just design thick slab as mat foundation with 4 pedestals ignoring the effects of the thin slab.
but the rebar detail would still be continuous from thin to thick slab without joints.
is that a good assumption?
RE: thickened slab or separate foundation?
Stick a joint around the thickened section to separate it from the adjacent slab or add nominal top reo to fix any negative moment.
RE: thickened slab or separate foundation?
RE: thickened slab or separate foundation?
Mike McCann
MMC Engineering
Motto: KISS
Motivation: Don't ask
RE: thickened slab or separate foundation?
RE: thickened slab or separate foundation?
i guess my rule of thumb will be no portion of the thickened slab should be in tension/uplift. if it gets too big, i'll use a separate foundation with isolation joints.