Moment Capacity of a Circular RC Section

[hippo11]

I need to find the nominal moment capacity of a circular RC Section. I suspect that I may need to do some crazy iterations on strain compatibility until the strain I choose converges to the strain I solve for.

Any ideas? Anything in the ACI Code? Thanks.

 

[SacreBleu]

I did that about 20 years ago. Just a few iterations, assuming a rectangular compression stress area. Close enuff for govt work.

 

[JedClampett]

Or go to the CRSI Handbook or the old PCA Column Design Tables and get the value for your section size, reinforcement and zero axial force.

 

[SacreBleu]

I haven't really verified this, but try Enercalc.com...they have a demo version of their engineering library you can download for free. When you print-out anything, there is something to that effect "watermarked" all over the sheet. At least you get a quick answer.