Grupo Pacadar

These are decks made up of a type of components that allows them to be placed abutting each other, attached to create a continuous flat ceiling.

These are decks made of slabs or simply flat ceilings, depending on whether the space between the beams is filled with concrete, or not.

SThe field of application is specifically isostatic bridges.

Condor-type beams are used to make slab decks, the beam itself serving as the formwork. Measuring less than 0.66 m wide.

IE-type beams are used to create flat ceiling decks or the beams can be separated as if they were Double-T beams. These are strong beams that can have a slenderness ratio of more than 1/25. They have a width of less than 1.10 or 2.40 m.

With inverted Pi beams all three types of decks can be created: slab decks, flat ceilings or double-T in appearance. They serve as the formwork for the second stage, to be poured on site. They are somewhere between Condor and IE type beams.

With hollow-core slab, spans of up to 10 m can be covered with superloads as specified in IAP. Their width is 1.20 m.

They can be composed of different types of components:

• Condor Beams.
• IE-type beams.
• Inverted Pi beams.
• Hollow-core slabs of great depths.

The range of slab depths varies between 0.25 m and 1.30 m.

The ideal spans for these components range from 5.00 to 20.00 m.

Thanks to these reduced depths, very slender decks can be achieved.

• Road and rail bridges with short and medium spans (up to 15 m).
• Bridges that, for clearance reasons, have a very restrictive total deck depth (beam plus slab).
• Slabs bearing heavy loads and small spans.
• False tunnels
• Road and railway underpasses
• Underground city streets or rail tracks

These beams only need to be supported on one neoprene at each end.

In the slab decks, once the beams are assembled abutting each other (each flush with the next), they are tied with the main transverse reinforcements of the deck through some holes made in the beams for this purpose, subsequently filling in the empty space remaining between them with concrete on site until the deck depth required as per the plans is reached.

In flat ceiling decks, the beams are placed on the underside, and a small formwork is placed on the top between one beam and another. Subsequently, a concrete slab is poured on site as a compression layer, measuring between 15 and 25 cm thick.

In Pi-shaped beams a reinforcement is arranged on site connecting the prefabricated component and the concrete poured on site.

The aesthetic appeal of the flat roof can be accentuated by adding special border features.

• Quick and simple assembly on the bridge or slab due to the fact that the unit weight of each component is reduced.
• Very rigid structures are created, particularly appropriate for areas with seismic activity.
• They do not need to be braced for the construction of bridges or floor decks.
• Easy to transport to the least accessible areas of the work sites.
• This solution is aesthetically appealing, giving a sense of continuity to the underside of slab decks and flat ceilings. This effect can be accentuated by adding special border features.

Data sheet of Coverings for flat and false ceilings in tunnels.

All data sheets of Civil Engineering.