IRC 2009 Residential Foundation Reinforcing
IRC 2009 Residential Foundation Reinforcing
(OP)
IRC 2009 Table R404.1.2(1) requires one #4 cont. bar 12" from the top of the found. wall and one #4 bar near mid height of wall. This is for wall heights less than or equal to 8'.
My thought is that hor. bars in a foundation wall give the wall the ability to act as a grade beam to help bridge soft soils, etc. and to better distribute loads from above. This also helps crack control. But I've always thought rebar near the top and bottom of the found. wall is most effective, creating the larger d' distance (assuming that footing reinforcing and wall vertical rebar is not req'd).
Any thoughts on this specific requirement?
My thought is that hor. bars in a foundation wall give the wall the ability to act as a grade beam to help bridge soft soils, etc. and to better distribute loads from above. This also helps crack control. But I've always thought rebar near the top and bottom of the found. wall is most effective, creating the larger d' distance (assuming that footing reinforcing and wall vertical rebar is not req'd).
Any thoughts on this specific requirement?






RE: IRC 2009 Residential Foundation Reinforcing
I generally use two at all three locations and 3 or 4 in the footing.
Little extra steel is cheap in a $M house
RE: IRC 2009 Residential Foundation Reinforcing
RE: IRC 2009 Residential Foundation Reinforcing
RE: IRC 2009 Residential Foundation Reinforcing
RE: IRC 2009 Residential Foundation Reinforcing
RE: IRC 2009 Residential Foundation Reinforcing
I would call out for #4 bars 18" OC each way if I was taking responisbility for it. But, I also get complaints from contractor. Oh well.
RE: IRC 2009 Residential Foundation Reinforcing