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minimum footing rebar

minimum footing rebar

minimum footing rebar

(OP)
am checking a footing with very minimal load.

it is 2 ft thick to match existing. no piers. base plate directly to footing.

he put rebar less than temperature bars of 0.0018.

any comment as to minimum rebar for negligible load for 2ft footing?

i did read on ACI that for slab on ground no need to satisfy temperature bars.

thanks,

RE: minimum footing rebar

It could be designed as plain concrete.

Why not just call the designer and ask?

RE: minimum footing rebar

I think the designer is right.  Agree with rday, call the designer and ask.

My recollection of footings is that if the moment of the uncracked section is some factor bigger than the required moment then you don't need flexure reinforcing.  Also, the idea of temperature rebar for a footing is misfounded.  A couple bars for shrinkage and to hold the cracks together, but that's all.  

As rday said you can always design plain concrete.

Just call the designer and ask.

RE: minimum footing rebar

(OP)
thanks,

i doubt designer have calculation. he just used "gut feel" based on experience approach.

i wanted to comment on his drawing provide at least 0.0018BH rebar, but decided to ask here.

anyway, seems it's ok since it's 2ft deep.  

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