Cracked walls in a parking garage

[Robbiee]

Hi all,
Looked at a parking garage where two walls were cracked at a couple of locations. The attached images show these cracks. It was clear to me that the cracks happened because the expansion joint in the roof deck was not continued into the walls. Now to repair, I am suggesting to create joints where the cracks happened. Being an existing condition, I was wondering what is the best and least costly way to create these joints to allow movement to happen? Would a control joint, (vertically reduced wall section at the ex. joint and filled with flexible joint filler) work? or do we need to have a joint matching the width of the existing expansion joint? If the latter is required at the location of Crack #1, the ramp retaining wall will become laterally free, which could shift.
Thanks for all inputs.

 

[HTURKAK]

I am not sure for this urgement.. Will you please post the pictures of the other two EJ - wall joints together with basement plan or sketch??

 

[le99]

Crack #1 seems to be a bearing or deep beam shear failure, you should check existing reinforcing details before considering the repair method. For crack #2, I don't think a control joint will do much good either.