Reality check for a cantilever walkway.
Reality check for a cantilever walkway.
(OP)
I did a quick calc for a 6" cantilever concrete walkway, I would like to know if i am missing something. My minimum reinforcement looks iffy.
Thanks
Attached is the file,
Thanks
Attached is the file,






RE: Reality check for a cantilever walkway.
1. Your minimum depth is L/10 for cantilevered slabs (w/o checking deflections)
2. Your actual "d" is 2", not 1. (1 1/2" clear cover - 0.5"/2)
3. Why are you guessing for "a", you should be able to solve for this with strain compatibility and summation of forces.
RE: Reality check for a cantilever walkway.
RE: Reality check for a cantilever walkway.
d= 4", not 5 is what I meant to write.
RE: Reality check for a cantilever walkway.
This gives a wu = 0.25 ksf and Mu = 3.78 ft-kips. I am not sure why you are guessing at "a" when you can calculate it directly....a = As x Fy / (0.85 x f'c x b)
phi Mn = 3.47 ft-kips (#4 @ 12" oc) < 3.78 ft-kips NG
use #4 @ 10' oc
Should you be using ACI 350 for a hydroplant to control cracking? This would require #4 @ 8" oc.
RE: Reality check for a cantilever walkway.
I am a beginner and have found this forum to be great.
Thanks once again.
RE: Reality check for a cantilever walkway.
Keep at it, we have all been there!
RE: Reality check for a cantilever walkway.
RE: Reality check for a cantilever walkway.
RE: Reality check for a cantilever walkway.