Hambro D500

Trust your elevated floor system to our concrete composite experts. The Hambro D500 composite floor system is your answer to solid, reliable elevated slabs supported by proven floor joists.The D500 system combines Hambro composite steel joists with a poured concrete slab, using the bottom chord of the joist as a tension member with the top chord performing as a compression member, then as a shear connector after the pour.

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.

Hambro D510

D510 is a cold-formed mini-beam section combined with a poured concrete slab. The bottom chord of the Hambro joist acts as a tension member with the top chord performing as a compression member, then as a shear connector after the pour.

The D510 composite lightweight floor system is Hambro’s shortspan alternative to answer elevated floor construction requirements.

Hybrid concrete/steel T-beams run in one direction, with an integrated continuous slab spanning the other direction, combining to form a mini-beam section with poured concrete.

The mini-beam section (Fy = 50,000 psi (350 MPa) min.) is a cold-formed piece including bottom chord, top chord and web plate. The top part of the mini-beam performs as a compression member during the non-composite stage.

In the composite stage, the upper section of the D510 is embedded in the concrete and acts as a continuous shear connector. The concrete slab is reinforced with welded wire mesh. The top chord of the D510 acts as a high chair, developing negative moment capacity in the concrete slab, which performs as a continuous one-way reinforced slab.

Hambro MD200

The MD2000 floor system combines Hambro composite steel joists with a poured concrete slab as usual, with the pour over metal deck. The bottom chord of the Hambro joist acts as a tension member with the top chord performing as a compression member, then as a shear connector after the pour.

When your application calls for a steel deck, turn to Hambro’s MD2000 system.

Projects with elevated floor challenges in an environment where steel is the framing solution use Hambro as their edge for a composite joist that provides shallow depth and more head room and good fire ratings.

Concrete/steel T-beams run in one direction, and an integrated continuous slab in the other. During the concrete pour and cure, the bottom chord (Fy 50,000 psi min.or Fy 350 Mpa min.) act as a tension member and continues to serve as this member during the service life of the floor.

The web system tying top and bottom chords together consists of bent rods (Fy 44,000 psi min. or 300 Mpa min.) and resists vertical shear in a conventional truss manner. The patented 13-gauge top chord (Fy 50,000 psi min. or 350 Mpa min.) acts as a compression member during the non-composite stage.

When the composite is being formed, the top chord is embedded in the concrete and functions as a continuous shear connector. The concrete slab is reinforced with welded wire mesh. The top chord develops negative moment capacity in the concrete slab, which performs as a continuous one-way reinforced slab. At the same time, it serves as a high chair.

Hambro Girder

Developed for the multi-residential and commercial markets, the Hambro girder acts as a principal beam supporting the Hambro joists which are installed perpendicular at regular intervals on each side. The advantage of the new composite girder is that it offers greater spans than the conventional steel girder while maintaining a minimum depth to adapt to the Hambro joists.