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Hambro D500 - Concrete Floor Systems

Trust your elevated floor system to our concrete composite experts. The Hambro D500TM composite floor system is your answer to solid, reliable elevated slabs supported by proven floor joists.

This is achieved by embedding a Hambro composite steel floor joist in poured concrete. Concrete and steel T-beams run in one direction with the integrated, continous slab in the opposite direction.

Hambro’s floor joist bottom chord (Fy 350 MPa min. or Fy 50,000 psi min.) acts as a tension member when the concrete is being poured, and continues to serve that purpose during the service life of the floor. The web, tying top and bottom chords together, is made of bent rods Fy 300 MPa min. or Fy 44,000 psi min. (continuous by design).

The web resists vertical shear in a conventional manner. The patented 13-gauge top chord of the floor joist (Fy 350 MPa min. or Fy 50,000 psi min.) acts as a compression member during the non-composite stage.

In the composite stage, the top chord of the floor joist is embedded in the concrete and acts as a continous shear connector. The concrete slab is reinforced with welded wire mesh. The top chord functions as a "high chair", developing negative moment capacity in the concrete slab causing it to behave as a continuous, one-way reinforced slab.

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