Light frame bearing wall platform framing detail

[TDobber]

In the typical detail of multistory bearing wall through floor TJI framing with platform framing, what is the load path for the stud force. Do you need to provide squash blocks under each stud as shown in the attached detail? It seems that if only blocking is provided in between the joists, the bearing area between the blocking and the bottom wall plate is always smaller than the bearing area between the stud and the bottom plate. Hence you'd be limiting the wall capacity by the width of blocking that is provided.
Do you then need squash blocks at each joist as well to avoid loading the joists through web?

See attached details.

 

[DoubleStud]

Just run I-joist blockings.

 

[phamENG]

If you only look at the overlapping area, sure, but that's excessively conservative. You have continuous contact between the sole plate and the blocking, so you can't get localized crushing without some weird and unlikely deformations. Blocking is fine. If you have an especially high load wall (holding up 4 floors above?), maybe do double blocking.