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Fabrication & Installation Recommendations

Cutting

200 series cutting positions200 Series

400 series cutting positions400 Series

 

The optimum cutting lines for both 200 & 400 Series Grating are shown above. When both ends of panels can be cut as shown, end bars are not essential, but may be required for multiple panel stability or attachment purposes.

When length limitations preclude cutting through webs as shown, end bars are essential to restrain ends of load bars and chords.

See Tech Data Sheets A02 and A03 for details of end bar fitting.

Pattern Matching

Pattern matching is essential when using 200 Series Grating in a multiple panel situation, i.e. where panels are welded together side by side. Pattern matching is not essential when using 400 Series Grating in a multiple panel situation unless the visual aspect is a design criterion. See Tech Data Sheet A05 and A051 for details of multiple panel fabrication.

Fastening

For a range of recommended fastening methods, see Tech Data Sheet A07 and A071.

Welding

Prior to welding ensure that all surfaces are clean and free from any deleterious material. Welding shall be in accordance with AS1665 SAA Aluminium Welding Code. Welds shall be 3mm fillet (unless stated otherwise) Quality B as defined in Section 6.1 Table 9. Filler rods shall conform to AS1588. After welding, clean adjacent surfaces with Gibson Chemicals Formula 511A (or equivalent) in accordance with manufacturer's recommendations and safety precautions.

Expansion Allowance

A minimum clearance/gap of 1.2mm per metre should be allowed for expansion when installing Ampligrip aluminium grating, within the temperature range 20°C to 70°C.

Isolation

When located in a permanent or recurring moist environment, Ampligrip aluminium grating is best supported on aluminium or another compatible material, such as stainless steel, to avoid galvanic corrosion. Where other support materials such as timber, concrete, steel, etc. are employed, it is recommended that a non-aggressive impervious membrane is used between contacting surfaces.

Due consideration should be given to the severity of environment when specifying the isolation medium to ensure that deterioration does not occur as the result of exposure to sunlight (UV), perishing (ozone) or chemical breakdown.

Commonly used materials are EPDM, neoprene or bituminous felt. Alternatively surface coatings of galvanising, zincalume, zinc chromate, zinc rich or bituminous paint may also be suitable.

Recommended Specification

Ampligrip aluminium grating is manufactured from slotted and stretched extrusion and is supplied in 6060-T5, 6060-T6 and 6063-T6 alloy. Ampligrip is a registered trade mark and refers exclusively to the unique one piece manufacturing technique of the Ampliform process.

Technical Assistance

Juralco offers further technical assistance beyond the comprehensive data provided here and other catalogue information. Our technical service extends to engineering Consultation on specific project applications and the provision of detailed fabrication drawings where required.

Availability

Our national network of distributors, resellers, specialised fabricators and installers, backed by our Adelaide-based manufacturing plant, ensures prompt and efficient availability of the complete Ampligrip aluminium grating product range.