Arcadia costruzioni sportive - Sito Web Ufficiale

LAMINATED WOOD ARCH COVERINGS 

CONSTITUENT PARTS

LAMINATED WOOD
The main framework is composed of laminated wood arches, appropriately sized by our technical department, glued in a rectangular section with resins of approved type in accordance with the DIN 1052 standards, planed and brushed with primer. Wood arches are generally placed at a distance of about 5.50 metres, where the first and the last arch are placed at about 4 m from the external edge of the foundation; therefore, over a length of 40 m of ground to be covered, 7 arches are envisaged to form 6 spans.
The first and the last spans must be braced with a suitable number of steel tie rods/struts which are then fastened to the perimeter edging with galvanized zinc plates. On the long sides of the structure there is a platform beam at the height of about 2.20 m above ground on which the PVC covering sheet can be anchored and the gutter can be installed. The wood used is of GL24 or GL32 (according to EN 14080) grade, treated with open-pore primers functioning as antimold and antiwoodworm base stain. The laminated wood used can be in a variety of colours depending on the choice of our customer: from transparent to teak, pine, larch, mahogany and fir green.
The structure is then completed with frames (feet plates, arch junction and strut connection plates) directly made in our workshops, as well as with assembly bolts from hot-dip galvanized steel in. The whole set is firmly anchored to the ground on a concrete foundation appropriately arranged and external to the playing ground.
Owing to its nature, and due to the very small mass that a seism is able to move horizontally as well as due to its characteristic mode and time of vibration, the structure is inherently little sensitive to the effects of an earthquake.



COVERING SHEET
As far as covering sheets and laminated wood arches that are used in particularly hot or cold climates, the external envelope has been designed in two levels: an external one and an internal one, thus forming an air gap that is 70 cm thick.
The air gap plays an extremely important function: it becomes the third layer of the covering envelope.
Air is a good thermal insulator which, paired with the two PVC sheets, the internal and external ones, makes the total transmittance of the pack reach the value of 1.7 W/m2*K.
The pack includes:
- An external insulating PVC sheet weighing 2 Kg/m2, 3 mm thick, silver in colour and reflective;
- An air gap or about 70 cm;
- An internal insulating PVC sheet weighing 2 kg/m2, 3 mm thick.

The material used is a special fabric specifically used for this type of structures: high-tenacity polyester, coated with PVC-based compounds on both faces, treated with a special dirt-repellent protective film against fungi and molds. This material is fully resistant to U.V. rays and weather agents. It is PVC, with basic weight 720/750 gr/m2.
As regards colours, reflective (silver) sheets can be used to increase the insulating effect of the double sheet.


AIR-CONDITIONING
A sports facility made at low latitudes and in tropical areas absolutely requires an air conditioning and ventilation system that also includes the generation of cold air.
As regards fixed structures, made with grids of steel rods or arches, the covering sheet, though double, is an external closure of medium performance.
For this reason, some UTAs (air treatment units) are used which, with the application of the Carnot cycles, exploit the properties of the gases circulating in the internal circuits and create a thermal exchange so as to generate cold air featuring a lower humidity rate.
Thus, the environment is climatized by bringing temperature and humidity to values that suit the body. 

 MAIN MENU' 

Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open
Open