Cantilever Retaining wall schedule
Cantilever Retaining wall schedule
(OP)
Sometimes we have so many retaining walls on one project so we do a schedule so we don't have many details. So usually we just put rebar for shrinkage and temperature for the horizontal bar on the wall. My question is, a lot of the retaining walls jogs. Don't you think the horizontal rebar need to be increased since the wall is restrained on the side(s) (fixed)? One engineer thinks if the cantilever design works, it doesn't matter if you jog the wall. I think it will crack the wall vertically, what do you think? I am still a little green.
Never, but never question engineer's judgement






RE: Cantilever Retaining wall schedule
RE: Cantilever Retaining wall schedule
Never, but never question engineer's judgement
RE: Cantilever Retaining wall schedule
RE: Cantilever Retaining wall schedule
RE: Cantilever Retaining wall schedule
Never, but never question engineer's judgement
RE: Cantilever Retaining wall schedule
RE: Cantilever Retaining wall schedule
RE: Cantilever Retaining wall schedule
Loads will follow the path of greatest stiffness.
If this doesn't match up with where you added strength to the system, material failure can result. With closely-spaced vertical restraints (jogs in the wall), the path of greatest stiffness is a horizontal span between the "jogs", and the wall will crack under horizontal bending before the vertical reinforcing takes much of the load.
The wall may still be sound, unless the vertical cracking is severe enough to reduce the bond with the cantilever reinforcing steel, but it won't be pretty...
RE: Cantilever Retaining wall schedule
RE: Cantilever Retaining wall schedule
The situation you describe (the elevated slab) will result in unsightly cracking, but the system will not fail since you did provide a load path.
My graduate concrete professor said that you should design it the way it wants to behave, but that as long as you provide an acceptable load path it won't fail. That makes sense.
That being said, I asked the very same question in my first week on the job and was told the exact same thing that you were told. The answer bothered me, but I got real busy real fast and that fell off the radar.
RE: Cantilever Retaining wall schedule
Never, but never question engineer's judgement
RE: Cantilever Retaining wall schedule