Yield line in SCBF

Question

When designing a SCBF connection with "Slotted with cover plates", does Ram connection check that the yield line occurs in the gusset plate and not in the knife plate?

Seth Guthrie · Answer

We are checking the gusset plate (your red line). The output will indicate something like below: 
 Tension yielding on the Whitmore section [Kip] 84.18 307.83 E1 3.66 Eq. J4-1 Buckling on the Whitmore section [Kip] 79.20 187.02 E2 2.36 Eq. E3-1 
 We are also checking the connecting plate, but that's in another section and the bolt shear or bearing is usually critical.