Top Reinforcement in Footings
Top Reinforcement in Footings
(OP)
I'm having a debate at work, I was hoping for some help to resolve it?
My boss insists that including top reinforcement helps with the punching shear capacity for a footing (a regular spread footing with no uplift or negative moment). I'm not sure if this is true, because I know that longitudinal reinforcement does not count for shear in regular beams. Thanks in advance for any thoughts!
My boss insists that including top reinforcement helps with the punching shear capacity for a footing (a regular spread footing with no uplift or negative moment). I'm not sure if this is true, because I know that longitudinal reinforcement does not count for shear in regular beams. Thanks in advance for any thoughts!






RE: Top Reinforcement in Footings
RE: Top Reinforcement in Footings
Mike McCann, PE, SE (WA)
RE: Top Reinforcement in Footings
Msquared, thank you, that makes sense
RE: Top Reinforcement in Footings
Dik
RE: Top Reinforcement in Footings
RE: Top Reinforcement in Footings
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RE: Top Reinforcement in Footings
You're putting a lot of effort and cost into something that doesn't need it. Footings, including those with moments, are very straight forward and function as designed. There are relatively few unknowns... your design vertical load and moments are generally conservative (the exception being an error), your materials are generally as spec'd. There is no need for being 'ultra' conservative.
Dik
RE: Top Reinforcement in Footings
RE: Top Reinforcement in Footings
RE: Top Reinforcement in Footings
RE: Top Reinforcement in Footings
DaveAtkins
RE: Top Reinforcement in Footings
Dik