No backspan 6 ft long concrete cantilever
No backspan 6 ft long concrete cantilever
(OP)
I'm designing a 6 ft long (from CL of the wall) concrete cantilever with no backspan on top of a 16 in wide wall. This is the first time I'm designing a concrete cantilever, can you tell me what should be considered? Should i design a simple slab? What should I consider for the rebars since there is no backspan? The only load is live load.
(The cantilever is going to sit on 17 ft of the wall and span out 6.5 ft)
(The cantilever is going to sit on 17 ft of the wall and span out 6.5 ft)






RE: No backspan 6 ft long concrete cantilever
The Wall is the backspan. The moments must be developed back into the wall and down to the ground. Deflections will be caused by the cantilever deflection plus the rotation at the top of the wall.
This is a simply engineering problem, you should not be asking about it here if you have been tasked with designing it by someone who thinks you should know how it works.
RE: No backspan 6 ft long concrete cantilever
Other than that, it's a relatively simple design problem... good luck with it.
Dik
RE: No backspan 6 ft long concrete cantilever
BA
RE: No backspan 6 ft long concrete cantilever
This is going to be a wastewater aeration basin. So there is waste water behind the wall & it has no lateral resistance. Deflection wise it seems ok. I'm concerned about detailing of Steel, tension, and if there are any special considerations that I may be missing or if there are bites I should add to the drawings.
RE: No backspan 6 ft long concrete cantilever
16" doesn't seem overly generous if the wall is cantilevering, hopefully it can also span horizontally.
RE: No backspan 6 ft long concrete cantilever