Jay, I'm guessing that the "blade or stud" he is referring to is probably metal embedded in the concrete. Some sort of knife plate connection. A little clarification may help Steve.
That would make more sense Sean, and I hope that is the case. I have seen contractors "embed wood post" into slabs more than once unfortunately...
If this is the metal "moment connections" that many PE are recommending then the concrete contractor will really have to be "top notch" to get them in the correct location...
Regards,
j
