Minggu, 27 November 2011

Steel Piles

- Support heavy loads.
- Can be driven to great depth without damage.
- Are easily cut and spliced.
- Sections as H-Piles and Pipe Piles are common.
- Pipes are filled with concrete for additional strength.
- Principal disadvantage is its high cost.
- Bearing is the principal load transfer mechanism, but the small area
   of the tip limits the load capacity of steel piles.

Steel piles generally are either pipe piles or rolled steel section H-section piles. Pipe piles can be driven into the ground with their ends open or closed. Wide–flange and I section steel beams can also be used as pile. However, H section piles are usually preferred because their web flange thicknesses are equal. In the wide-flange and I section beams, the web thickness are smaller than the thickness of the flange. When necessary, steel piles are splice by welding or by riveting.

Rolled steel H-section piles:
 – 40 ft to 100 ft in length,
 – 40 tons to 120 tons capacity.

Steel Pipe piles:
– 50 ft to 150 ft in length,
– 50 tons to 150 tons capacity.

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