What is the process to pour a concrete floor suspended, I know its possible, there are commercial applications of this everywhere but I can't seem to find anything about how its done. Such as the first floor of a house with radiant heat in it (without a wooden structure and gypsum over pipes) or a 2 bay garage 1/4 turn over a garage. (In a hill, one garage level with first floor, another in the basement.)

Concrete walls or steel frame is put in place, necessary concrete or steel columns are put in place, any necessary steel beams are put underneath or incorporated into the concrete floor. Metal or wooden pan installed and lots of temporary support installed. Steel rebar and wire mesh put in place and concrete poured. After cured temporary supports removed.

Toolguyny - hkstroud, gave you some correct information, ( GOOD JOB ) now after you get all needed concrete columns poured and the columns forms off and your concrete beams poured, now you can start your floor frameing , using 4x6's as suports,with special 4x4's ( two pices as one leg, they have a square piece of metal round piece that goes around boyt PC.s of 4x4's. They need to be spaced about 4 ft. apart ( THE BEAMS) brace it with 2x4's to hold in place till rest is all tighed in. once you have some of the legs under the 4x6's the rows about 4 ft apart, you can stars running 4x4's on top of the 4x6's ,need to be lain about 6" centers , break the 4x4 joints at least 2 FT. use 6 or 8 penny cement coated nails to nail the plywood down to the 4x4's when you lay the plywood down on the 4x4's break joints by at least 1/2 of the other sheet laying by it. Keep plywood as stright and square as possiblethe 4x4 legs as I said is two pcs. with special clamps that is used for leveling the floor form you just built, useing either a transset ot a builders level level the floor forms. . The legs need to be about 3 to 4 FT. apart. now all that part is done lets get the steel rebar placed on the ply wood floor rebar will be run both ways so far apart ( AS DECIDED BY THE ARTIect or engneer, also put in all electrical conduit ,'light boxes switches boxs ect. ect. any water lines Dont put water lines directly in concrete , you put sleves in tp have a hole there after pouriong concrete. I don't know how big a area you are planing on doing , but this is not a over night thing you are wanting to do , so if you do it get ready. the concrete slab will have to be no less then 4" deep , it's quite a job, and not a one man project, IF YOU GO THREW WITH DOING IT THIS WAY< YOU WILL NEED TO BE LED THREW IT AS It's BEING DONE. IM takeing it that you haver nevr done any of this before. Well Good Luck And GOD BLESS< :::F.B.E

Thanks for the info... I have not done this particular job before no, numerous remodels of all sorts and one complete new house, footers up, with ICF's and truck after truck of concrete, but never a suspended floor. Thank you again.

Those floor slab are pre-stressed and frequently have steel cable inside them for added strength. Remember, concrete will always crack.