StructureCalcsHP18X135
Bearing Pile · AISC Shapes Database v15.0 · United States
HP18X135 is a bearing pile 444.5 mm deep with a 452.1 mm wide flange, weighing 200.9 kg/m. The dimensions below are the published AISC Shapes Database v15.0 values; the drawing is generated from them.
HP bearing piles keep flange and web at the same thickness for driving; the near-square profile takes soil abrasion and hard driving on both faces.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 444.5 mm | 17.50 in |
| Flange width, bf | 452.1 mm | 17.80 in |
| Flange thickness, tf | 19.1 mm | 0.750 in |
| Web thickness, tw | 19.1 mm | 0.750 in |
| Mass per metre | 200.9 kg/m | 135.0 lb/ft |
| Area, A | 25,742 mm² | 39.90 in² |
| Second moment, Ix | 915,709,137 mm⁴ | 2,200.0 in⁴ |
| Second moment, Iy | 293,859,387 mm⁴ | 706.0 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 HP18X135 the computed area agrees with the published value to 0.01% and Ix to 0.08%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Sx | 4,123,420 mm³ |
| Elastic modulus, Sy | 1,300,063 mm³ |
| Plastic modulus, Zx | 4,602,740 mm³ |
| Plastic modulus, Zy | 1,996,436 mm³ |
| Radius of gyration, rx | 188.7 mm |
| Radius of gyration, ry | 106.9 mm |
S is the elastic modulus and Z the plastic modulus, following AISC 360. Australian and British practice reverse the letters.
Neighbouring sizes
Where these numbers come from
Published AISC Shapes Database v15.0 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API