Nucor Skyline
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Pipe Piling

Deep foundations are required when the shallow soils are not strong enough to support the loads from the structure. Pipe piles are commonly used in deep foundations and transfer the loads from building to stronger soil layers found deep underground. The loads are resisted through skin friction and point bearing. Pipe can be driven either open-ended or closed-ended, with points or plates. If driven with plates, the pipes can then be filled with concrete to add strength to the pile. Usually the money spent on plates, rebar, and concrete would be better spent on a larger, thicker pile. Pipe piles range in size from several inches to several feet in diameter and can be easily spliced to create piles hundreds of feet in length.

Caissons

Caissons are most commonly used for bridge applications where it is necessary to drill into river bed material below water to found pilings or a pier foundation. Caissons are usually large diameter pipe, upwards of 10’ or more. Large diameter rolled and welded pipe provides the installation capability for these high-strength foundation systems.

Structural Sections

The symmetry of pipe gives it the same bending strength, in any direction, which makes it an excellent product for the resistance of buckling. The stress required to buckle an axial member decreases with length. The radius of gyration has the opposite effect and increases the ability of a section to resist buckling. The W and HP sections have differnt radii of gyration (rx and ry) for the X and Y axes, while remaining constant for a pipe. The end result is that a pipe can take much higher loads for long, unsupported lengths.

Line Pipe

Welded steel pipe provides an effective method for transporting liquids, air, and gas. Steel Pipe is pound per pound stronger than any other type of line pipe. Pipe can be designed to handle both the internal and external pressures of most applications. Welded steel pipe offers many advantages, such as: strength, economy and ease of installation. Nucor Skyline is SPFA certified and manufactures hydrostatically tested pipe in outside diameters ranging from 10-3/4" – 90". Our production process utilizes a double submerged arc weld process in both spiralweld and rolled & welded pipe. Hydrostatically tested pipe lengths range from 30' – 60', wall thicknesses from 0.250" – 2.0" wall and produced to one of the following industry standards: AWWA C200/ASTM A139/ASTM A134.

Case Study: North Shore Tunnel Connector

Case Study: North Shore Tunnel Connector

Pipe used for the support of excavation for a light rail transit (LRT) expansion. 

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Pipe Brochure

Pipe Brochure

Learn about our comprehensive line of steel pipe products. 

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Technical Product Manual

Technical Product Manual

Get all the information you need about Nucor Skyline's complete line of steel foundation products. 

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