StructureCalcs800WB122
Welded Beam · AS/NZS 3679.2 · Australia / New Zealand
800WB122 is a welded beam 792.0 mm deep with a 250.0 mm wide flange, weighing 122.5 kg/m. The dimensions below are the published AS/NZS 3679.2 values; the drawing is generated from them.
Welded Beams are fabricated from three plates to AS/NZS 3679.2, extending the rolled UB range to depths and capacities rolling cannot reach. A welded section has square corners by construction.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 792.0 mm | 31.18 in |
| Flange width, bf | 250.0 mm | 9.84 in |
| Flange thickness, tf | 16.0 mm | 0.630 in |
| Web thickness, tw | 10.0 mm | 0.394 in |
| Mass per metre | 122.5 kg/m | 82.3 lb/ft |
| Area, A | 15,600 mm² | 24.18 in² |
| Second moment, Ix | 1,570,336,000 mm⁴ | 3,772.7 in⁴ |
| Second moment, Iy | 41,700,000 mm⁴ | 100.2 in⁴ |
Derived section properties
Integrated from the section's exact plate outline — a welded section has square corners by construction, so nothing is approximated. For 800WB122 the computed area agrees to better than 0.01% and Ix to better than 0.01%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 3,965,495 mm³ |
| Elastic modulus, Zy | 333,840 mm³ |
| Plastic modulus, Sx | 4,548,000 mm³ |
| Plastic modulus, Sy | 519,000 mm³ |
| Radius of gyration, rx | 317.3 mm |
| Radius of gyration, ry | 51.7 mm |
Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed.
Neighbouring sizes
Where these numbers come from
Published AS/NZS 3679.2 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API