Raised floors
Raised Flooring Supporting Structures

The technical characteristics of a raised floor depend not only on the surface finishing or the kind of support but also on the kind of load-bearing structure.

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In a raised floor the panels are laid on top of a metal structure made of columns and, if required, of cross-section stringers. This structure transfers to the building both the weight of the raised floor and the loads applied to it.
The structures allow the height of the walking surface to be set in a range of 10 cm up to over 100 cm.
The load-bearing performance differs according to the design requirements and thus to the combination of the surface finish to the adequate support and to the hoadbearing structure.

The structure must therefore be made up of elements with different sections able to withstand the stresses borne by the flooring.
The shape of the elements varies from project to project, mainly dictated by the resistance required.
The simplest structure is made up of columns only. These are mode of galvanized steel and can be adjusted in height although, if no cross-section stringers are used, it is advisable to keep to a height not exceeding approx. 15 cm. To increase the stability of the structure the columns are secured to the supporting surface by means of adhesives.
Not using cross-section stringers also makes it possible to increase the space available (Pu) for the passage of cabling and connections underneath the raised flooring.
To further increase the load-bearing capacity of the raised floor, moulded and galvanized steel cross-section stringers are used.
They supply the connection between the columns and they're fitted on the ends by means of mechanical coupling or fastening screws.

The insertion of PVC gaskets provides a continuous layer between the structure and the panel, increases the airsealing of the system and improves the bearing of the panel on the steel structure.

With tubular cross-section stringers it is possible to adapt modular arrangements of multi-panel cross-section stringers suitable for very heavy loads and for great rigidity requirements. In this case, the end section of the column is modified specifically to accommodate the cross-section stringer.

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