NPS® Rei S Beam

The self-bearing composite steel truss and concrete NPS® Rei S Beam with a concrete footing, is patented for optimal coupling with slab ceilings, and allows fire-resistant decks to be realised with no protrusions from beneath according to Eurocode 2-2.

The metal structure, made of structural steel (UNI EN 10025-2) is made of one or more truss welded using metal active gas welding (Process UNI EN ISO 4063-135).
Lower chords are inserted in precast class C28/35 concrete footing (UNI EN 206-1:2006), and equipped with reinforcement and surface reinforcement sized to support the heavy load of the ceiling on the NPS® Rei S Beams.
Two galvanised metal profiles positioned on the sides of the beam and partially encapsulated in cast concrete act as housing for the ceiling and guarantee the lower surface in-plane.

Product Details

Technical data

Metal structure Made of structural steel in conformity with UNI Standard UNI EN ISO 10025-2
Footing C28/35 or higher class concrete (UNI EN 206-1:2006) designed and equipped with reinforcement and surface reinforcement. Two galvanised side metal profiles partially encased in cast concrete act as housing for the ceiling and guarantee the lower surface in-plane.
Casting framework C25/30 when not otherwise noted by the designer
Self-supporting Yes. NPS® Rei S Beam bears itself and the ceiling that rests on it, already from the moment it is placed on the column (1st phase), already before the formwork cast (2nd phase)
Welding Using metal active gas welding (Process UNI EN ISO 4063-135)
Mechanical resistance to fire ( R ) Up to 120 minutes
Standards referenced In the 1st phase Eurocode 3 In the 2nd phase Eurocode 4 For anti-seismic Eurocode 8
Design Elaborated with the System calculation procedure conforming to the current Standard, and signed by a qualified technician.
Countable length Distance between theoretic supports used in the calculation

Slab matches

NPS® Rei S Beam - predalles slab NPS® Rei S Beam - predalles slab
NPS® Rei S Beam - concrete slab NPS® Rei S Beam - concrete slab

Support beam on column

Support beam on column Support beam on column

Structural continuity

Structural continuity Structural continuity

Customising

NPS® Rei S Beam with bore holes NPS® Rei S Beam with bore holes
NPS® Rei S Beam joints using shaped plates NPS® Rei S Beam joints using shaped plates

Graphic preliminary design

Graphic preliminary design Graphic preliminary design

Assembly

APPLICATION-TECHNIQUE RECCOMENDATION

Petri Eng. Fulvia Petri,
NPS® Designer

  

Notwithstanding its limited thickness, NPS® Rei S Beam is more rigid than an RC beam, and performs better on important bays. 

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