318-14 Retaining Wall steel details, Minimum reinforcement, Cut off points.
318-14 Retaining Wall steel details, Minimum reinforcement, Cut off points.
(OP)
I'm looking for a few references in 318-14 that I used to follow for retaining walls in older versions of the code. I realize the code has gone to a more member specific layout but I would think these items would still pertain. My application is a cantilevered retaining wall.
1. Minimum reinforcement. This used to be in 10.5. How does the 318-14 reference these requirements for walls?
2. Vertical tension steel cut off. Old 318 12.10.3 required steel extend d or 12db past where not needed.
I can find these items in 318-14 for beams and slabs but not walls. My application is clearly a wall so I would think Ch. 11 would either spell it out or reference it somewhere else in the code.
thank you
1. Minimum reinforcement. This used to be in 10.5. How does the 318-14 reference these requirements for walls?
2. Vertical tension steel cut off. Old 318 12.10.3 required steel extend d or 12db past where not needed.
I can find these items in 318-14 for beams and slabs but not walls. My application is clearly a wall so I would think Ch. 11 would either spell it out or reference it somewhere else in the code.
thank you





RE: 318-14 Retaining Wall steel details, Minimum reinforcement, Cut off points.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: 318-14 Retaining Wall steel details, Minimum reinforcement, Cut off points.
I'm familiar with that reference. When I use it it sends me to either Beams or Slabs in 318-14. I'm trying to find if or how the 14 code requires it for walls.
RE: 318-14 Retaining Wall steel details, Minimum reinforcement, Cut off points.
I'd say if you're looking for explicit steps of what design checks need to be made I suspect you'll find none. I'd reference the ACI provisions for beams and one-way slabs and the CRSI design guide on cantilevered retaining walls, then design as you've always done. The 2014 CRSI cantilever retaining wall design guide references ACI 318-14 and they also use all the typical provisions from the various beam/slab sections of ACI 318-14.
Professional Engineer (ME, NH, MA) Structural Engineer (IL)
American Concrete Industries
https://www.facebook.com/AmericanConcrete/
RE: 318-14 Retaining Wall steel details, Minimum reinforcement, Cut off points.
OK, good to know. Thanks