On one frame we did, with a timber sill over a pt sill we had the concrete guy place 1/2" threaded rod into the concrete looped under a piece of rebar and it was tall enough to come up through the timber sill. We located the rods and bored through holes and lowered the sills down over the threaded rod. Attached nuts and washers and then cut off the threaded rod below the top surface of the sill for the decking to cover it.
Worked ok for us.....
Jim Rogers