Shear in PT beams when Design column strip for Column + Middle strip resultants is checked

Hi there,

I'm designing a parking PT slab with PT beams in a corner panel where we have higher loads. I noticed that the amount of shear reinforcement in the beams running parallel to the distributed tendon (longitude direction) increases exponentially when I have the "Design column strip for Column + Middle strip resultants" option checked. On the other hand, the amount of shear reinforcement in the beams running in the latitude direction changes very little whether we have the option checked or not.

I can't figure out why this happens, and would also like to know if I should have the "Design column strip for Column + Middle strip resultants" option checked. To my understanding, we have that options checked for beams in one-way slabs, but what about beams running in both directions in two-way slabs?

Thanks