From: Roger Turk <73527.1356(--nospam--at)compuserve.com>
Date: Mon, 3 May 1999 23:28:51 -0400
That is a good question! I don't know whether my answer will be good.
It depends on how the footing "looks." If it looks like a slab, then I will
use the minimum reinforcing for slabs. This would include footings for walls
and isolated footings.
However, if the footing looks like a beam, i.e., supports more than one
column, then I will use the minimum reinforcing for beams in the direction
that looks like a beam. After all, if you turn the columns and footing
upside down (in your mind, of course) you have a beam supported by columns,
A. Roger Turk, P.E.(Structural)
John E. Alcaras wrote:
. > What is the minimum reinforcement ratio for footings?
. > ACI318-1989 seems not too clear regarding this one but in ACI318-1995
. > says "For structural slabs and footings , ......" (Clause 10.5.4).
. > Any thoughts fellow structural engineers?..