Non-Rectangular Concrete Wall Design

[emanyalpsid]

Hello, I have been tasked with designing a non rectangular concrete wall that is going out to catch a cantilevering slab. I cant really figure out the best way to tackle the design for such a wall however. I know theres a corbel section in ACI but im not sure if this counts as corbel if it spans the whole wall length. My approach so far after speaking with my manager is to model it as a wall where its rectangular and a beam and rigid fame to make up that triangle under the cantilever.

Does anyone else have some thoughts after doing anything similar or could point me to a direction that has more info I can read up on? Im using ETABS to model this but they dont really do non-rectangular walls but if anyone knows how to make that work thatd be great. Also in terms of detailing any pointers would be appreciated. Thanks

 

[KootK]

I would be inclined to just do this. No doubt, if it's high ductility seismic, one could dream up some reason to get fancier.

 

[emanyalpsid]

Thanks for the response KootK, thats the approach I did orignally when that cantilever was 4' but the arch wants it to go to 6' (or at least check how feasible that would be) so at this point I think I need to find a way to have that wall take some of the gravity load at that outer edge since we have 8 stories of wall above, I think having that frame element as a concrete column might make sense and just have the verticals be the those edge bars but having all those horizontal bars for column ties would probably not be so fun