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What is NYC BC § 1812.8.3?

Quick Answer

This section outlines the design requirements for micropiles, specifying that load-carrying capacity is developed through a bond zone in soil and does not consider end bearing. Micropiles must be grouted and include steel reinforcement along their length. Applies to engineers and contractors involved in micropile construction.

General informational summary. Not legal advice for your situation. Consult an attorney before acting on any specific matter.

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1812.8.3 Design.

BC § 1812.8.3

Micropiles shall develop their load-carrying capacity by means of a bond zone in soil. The design of micropiles shall not consider end bearing. Micropiles shall be grouted and have either a steel pipe or steel reinforcement at every section along the length. It shall be permitted to transition compression loads from the steel pipe to the deformed reinforcing bars by extending the bars into the pipe section by at least their development length in tension, in accordance with ACI 318.

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