Important aspects of the main structure

Anchoring
Anchorbolts M16, M24, M27 and M30 form steel to S355 DIN EN 10025

Static system
Normally rigid frame construction with pinned bases

Type of profile
Full welded sections or hot rolled profiles to suit requirements

Frame material
Steel qualitiy to S355J2+N DIN EN 10025

Frame connections
Columns and beams connected by stiffened end plates using galvanised bolts quality 10.9 to DIN 14399 (previously DIN 6914-18)

Static calculations
Designed and optimised by latest computer technology on a per project basis

Bracing
Cross wind bracing using rods with threaded ends from grade S355 DIN EN 10025. Tubes from tubular section of the appropriate diameter from grade S235JRH.

Crane beams
Multiple crane combinations possible. Calculation of crane beams according to hook load.

Weld process
Web and flange connections by submerged arc process on computer controlled welding banks

Surface finish 
Shot blasted to swedish norm SA2.5, then prime painted to DIN EN 12944. Galvanising possible. Alternative primer painting possible 

Quality control
Main approval certificate is the confirmation of producers qualification for welding of steel (buildings) to DIN 18800-7:2002-09 class "E"

 

Important aspects of purlins and sheeting rails

Purlins and rails
Purlins and rails are manufactured from galvanised steel coil grade S390GD+Z to DIN EN 10346. Cold-roll formed on computer controlled rolling mills.

Surface protection
 
Galvanised on both sides with 20 μm zinc giving a coating of 275 g/m² on both sides. Fulfils requirements of Corrosion Protection class 1 to DIN 55928-8

Dimensions
Flange width ≥ 60 mm. According to loadings and roof or wall system chosen, height can vary from 140 to 450 mm, and the thickness from 1,5 to 4,0 mm

Purlin spacing
Between 1,5 and 2,5 m. May be less in high load areas.

Rail Spacing
First rail normally at + 2,3 m, with further rails at 2,5 m spacings or less

Static calculations
Purlins and rails are designed as two span continuous or simply supported elements.

Quality control
Approval of German Institute of Building Technology in Berlin, with further internal and external supervision

Purlins and rails
The purlin and rail system for roof and wall has a proven record as a secondary structural system. The special  profile cross-section combines high load bearing attributes with exceptional stability and economical use of material. The profiles are formed on computer controlled rolling mills, and the use of galvanised steel coils offers long lasting corrosion protection. The Atlasbeam profile has a flange width of 60 mm and is available in different profile heights and material thicknesses. The purlin and rail spacing may be varied to account for the relevant loadings as well as the chosen roof and wall system. Normally purlin spacings range from 1.5 to 2.5 m with the first sheeting rail being at + 2.3 m from floor level. Between main frames the profiles are stabilised using special spacers. All structural joints are bolted. All fixings and small parts are likewise galvanised.

 

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