AMPLIBEAM

AMPLIBEAM

Expanded Aluminium Structural Beams

'Amplibeam' is the trade name of our expanded aluminium structural beam. The product is created by taking a standard aluminium extrusion (alloy 6063) and firstly placing slots in it in alternate positions to create a pattern. The extrusion is then stretched wider to open up the slots. At the same time the length of the slots decreases. We have 3 standard extrusions to produce 3 different beams with a width tolerance of +/-2mm (this is due to the tensile variation in the extrusions). The finished length is determined by the ordered length of extrusion. Our standard length is 6m.

 

 

Typical joint using ALB 365 beam

Key Benefits

  • High Strength Aluminium Alloy
  • High Strength to Weight Ratio
  • Corrosion Resistant
  • Maintenance Free
  • Cost Effective
  • Easy to Assemble & Erect
  • Modular Designs Available

 

Structural Properties

Member Mass

kg/m

Depth

mm

Width

mm

Area

mm2

Ixx

mm4x106

Iyy

mm4x106

Zxx

mm3x104

R

mm

ALB 475 11.44 475 75 4220 174.20 2.63 696.60 25.00
ALB 365 8.87 365 50 2384 62.10 0.70 341.00 18.00
ALB 200 3.45 200 50 740 6.49 0.24 64.90 17.80
125x50 Hollow 1.85 125 50 684 2.31 0.32 37.00 18.20
50x50 Hollow 1.04 50 50 384 0.14 0.14 5.60 19.40

 

Amplibeam Specifications

Maximum allowable force (unfactored)

Design Method:- Allowable Stress

Based on Length: 2500 between connections

Section Moment- Knm Axial Load- Kn Shear- Kn Axial Force- Kn Bolt
Mid Span Support Mid Span Support Box at connection
ALB 200 4.00 6.75 26 68 4.80 12 M12
ALB 365 21.00 35.00 88 221 8.5 61 M20
ALB 474 54.00 68.00 287 415 11.3 114 M24

1) Beams are intended as arch members subjected to axial thrust and end moments.

2) ALB 475 only, is not suitable for use as a free spanning beam.

 

Note:

Section properties were calculated using both computer software and laboratory tests. The investigations were carried out by the following :

  • Stewart Scott Consulting Engineers
  • Middleton Associates, Consulting Engineers
  • University of Natal, South Africa

Copies of reports are available from the company on request. All designs of a structural nature need to be carried out by Structural Engineers to comply with local by-laws.

Various complimentary sections are available to effect full strength joints and effective designs.