I don't understand what the hinges are for. I think you can get all the uplift resistence you might need by ensuring proper embedment of the t-rod or sstb into the conc. and observing NDS specs for dolt dia's from end of piece. If you need more value, double up the timerlinx or barrel bolts.

Timberlinx look nice because they only use a 7/8" dia expansion thing which can be easily covered by a 1" dia peg. Also they can be tightened down for proper takeup of any "slop"

Most folks doing "timber style" (not timberframe) construction around here use a custom "embedment plate", basicly a simpson CB replacement made with 1/4" steel and a bolted, internal kerf plate. (2) 3/4" machine bolts usually attach the post. The kerfs are usually not seen on the sides and are cut freestyle with a chainsaw plunging into the end grain.

HTH