StructureCalcs310 UBP 78.8
Universal Bearing Pile · AS/NZS 3679.1 · Australia / New Zealand
310 UBP 78.8 is a universal bearing pile 299.0 mm deep with a 306.0 mm wide flange, weighing 79.3 kg/m. The dimensions below are the published AS/NZS 3679.1 values; the drawing is generated from them.
Universal Bearing Piles keep flange and web at the same thickness for driving — near-square I-sections that take soil abrasion and hard driving on both faces.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 299.0 mm | 11.77 in |
| Flange width, bf | 306.0 mm | 12.05 in |
| Flange thickness, tf | 11.1 mm | 0.437 in |
| Web thickness, tw | 11.1 mm | 0.437 in |
| Mass per metre | 79.3 kg/m | 53.3 lb/ft |
| Area, A | 10,099 mm² | 15.65 in² |
| Second moment, Ix | 165,177,382 mm⁴ | 396.8 in⁴ |
| Second moment, Iy | 53,100,000 mm⁴ | 127.6 in⁴ |
Derived section properties
Integrated from the section's own outline including the root and toe radii, whose arcs are integrated analytically rather than approximated by facets. For 310 UBP 78.8 the computed area agrees with the published value to better than 0.01% and Ix to 0.29%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 1,101,649 mm³ |
| Elastic modulus, Zy | 346,804 mm³ |
| Plastic modulus, Sx | 1,221,980 mm³ |
| Plastic modulus, Sy | 530,364 mm³ |
| Radius of gyration, rx | 127.7 mm |
| Radius of gyration, ry | 72.5 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 3679.1 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API