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Nippon Steel
110 EPDs
EPD: Galvanized profiled steel decking, for composite floor slabs/decks, 1.2 mm sheet thickness, 13.97 kg/m2, ComFlor® 60+ 1.20mm (Tata Steel Europe, Tata Steel International (2021))
Composite floor slabs or decks consist of profiled steel decking with an in-situ reinforced concrete topping. The steel decking acts as a permanent formwork for the concrete and provides tensile resistance as a result of the shear bond between the deck and concrete. Once the concrete has gained strength, the two materials act together compositely. The composite slab is connected to the steel beams, with the composite interaction being achieved by the attachment of shear connectors to the top flange of the beam. These connectors generally take the form of headed studs and are welded to the beam, and provide sufficient longitudinal shear connection between the beam and the concrete so that they act together structurally. The ComFlor® family of products comprises seven steel floor profiles, each designed specifically for a particular application area. ComFlor® 60 is a round shouldered, combined trapezoidal and re-entrant, 60 mm deep composite product, which is exceptionally resistant to compressive buckling. The steel floor deck is manufactured in Galvatite® hot dip zinc coated steel, with a guaranteed minimum proof strength of 350N/mm2, and has a fire rating of Class A1 in accordance with EN 13501 [8]. Shear studs are placed centrally in the troughs and the profile provides a 600mm cover width. It is designed to minimise the volume of concrete required, and thus reduce the weight of the floor. A section through the composite slab in shown in Figure 1.
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