L shaped precast wall

[Keystation]

Hi, I am designing a precast wall. However, the problem is that it's L shaped and 40 ft long. I am interested in how that L wall is lifted. It will rotate until it aligns with the center of gravity.

How do you calculate moment and shear capacity of rotated L shaped concrete? I can calculate tension/compression area to get moment capacity but for shear it does not have a defined width (bw). Is building manual (ACI 318) still viable in this case?

Thank you in advance

 

[HTURKAK]

Please post a sketch with dimensions and show final erected position and casting position to get better responds.