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KootK said:Properly proportioned, those bars would be quite good at limiting the size of shear cracks though that area.
dL said:Would shear friction and monolithic surface properties be the proper means to proportion this?
They're developed where they need to be - at the location of the potential shear cracks. The 1' bent leg on the end is primarily to make it possible to tie the bars to the other steel.I like bars that cross the shear plane orthogonally, as those would. But #8 bars with only a 12" leg each end might not be very effective.
The other concern is that most of the shear reinforcement is in the area close to the support, and not much out near the shallow end.