Building floor structure and process for forming same

A building floor structure comprising:

• a plurality of spaced-apart I-beams, each I-beam supporting a poured concrete surface and having an I-shape cross sectional shape, and each I-beam comprising:
• a vertically oriented web having a base;
• and
• one or more horizontally oriented base flanges connected to and extending across the base of the vertically oriented web and defining an upwardly facing support surface on an upper side of the one or more horizontally oriented base flanges;
• and
• a further horizontally oriented top flange connected to a top of the vertically oriented web and defining a downwardly facing surface on an underside of the top flange;
• at least one framework positioned between and adjacent two of the plurality of spaced-apart I-beams, each of at least one framework having two side regions, each side region comprising a downwardly facing bearing surface adapted to be received on the upwardly facing support surface of each respective I-beam, each of the at least one framework further comprising:
• a plurality of spaced-apart bearers aligned with the I-beams;
• a plurality of spaced-apart joists attached to and extending transversely to the bearers;
• at least one horizontally disposed decking member positioned on top of the plurality of spaced-apart joists;
• and
• a volume of concrete of a thickness less than a thickness between the upwardly facing support surface and the downwardly facing surface of two adjacent beams of the plurality of I-beams, the volume of concrete partially encasing a top of the I-beams and substantially filling a volume defined at least by the vertically oriented webs of the beams and the at least one decking member, wherein the volume of concrete covers top surfaces of the I-beams to thereby provide a continuous top surface to the floor structure.