Recommended for construction in seismic zones, and to make the best use of space thanks to the compactness of sections with the same required performance, for structure ductility and beam-column node confining. It is suitable for infrastructure, major projects, and just as it is for residential buildings.
EN 1090-1 CE marked, NPS® PDTI® is comprised of metal profiles with circular, square ore rectangular sections, usually filled with concrete. It joins the versatility of a metal structure in the provisional phase with the resistance of a composite steel-concrete structure in the working phase.
It can be supplied with helical or vertical welding, and if requested in a multi-storey version, even with a differentiated section for each interfloor.
S275J0/S355 structural steel sleeve conforming to Standard UNI EN 10219-1. Beyond representing formwork for the casting formwork, it also comprises a hoop system around the central, internal concrete, increasing total resistance
Same class foreseen for the cast of above ground projects, up to C40/50
Helical or vertical (tube) and with fillet or completely clean (flange), realised using metal active gas welding (Process UNI EN ISO 4063-135)
Mechanical resistance to fire ( R )
Up to 120 minutes, due to its native features. If required up to 240 minutes.
For design and dimensions Eurocode 4
For structural nodes UNI EN 10219-1
For anti-seismic Eurocode 8
For fire-resistance EC4
Elaborated with the System calculation procedure conforming to the Standard in force, and signed by a qualified technician
Rust-proof treatment- PDTI® con trattamento antiruggine
Primer for plaster
Intumescent treatment for fire-resistance
Sanding and epoxy painting
WITH WINDOWS AT THE JOINT
Graphic preliminary design
PDTI® Column- Graphic preliminary design
Eng. Alessandra Favarato, NPS® Designer
NPS® PDTI® columns behave well in framed and wall buildings. Support flanges for beams are easily adaptable even in cases where there are jumps in height and non-perpendicular beams.