Effective width of concrete wall strip

[ntattose]

I am designing an outrigger that will frame into an ICF wall. I will need to design a reinforced vertical strip of the wall to resist the moment induced by the outrigger. I think that I recall that the width of the strip should not exceed 3X the wall thickness, but I can't seem to locate that anywhere. Does anyone know what the maximum width that the strip can be?

 

[KootK]

The more locally you can get this done, the better. At the same time, 3t strikes me as pretty conservative. If you can make the joint work, I'd think that you'd be approaching a situation similar to an edge roof column in a two way slab.

8" wall with a steel outrigger?

3t actually would be somewhat consistent with how we we treat slab column connections so maybe that is a reasonable limit for an effective connection width if there's nothing specifically recommended for this elsewhere.

 

[jhnblgr]

For retaining walls with loads from vehicle impacts you can distribute the force over a vertical 45 degree distribution to the footing so long as there are no joints in that distribution. I wonder if you could apply similarly

 

[ntattose]

ACI recommends a strip 12t at the jambs of openings of tilt up walls. That seems a little much for my application, but maybe a good start. Maybe something like 6t or 8t?