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What is NYC BC § 1812.1.2.1?

Quick Answer

This section defines the design cracking moment for cast-in-place deep foundation elements that are not enclosed by a structural steel pipe or tube. It specifies the equation to be used, incorporating factors such as the compressive strength of concrete and the elastic section modulus. Applies to engineers and designers involved in foundation design.

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

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1812.1.2.1 Design cracking moment.

BC § 1812.1.2.1

The design cracking moment (ØM n ) for a cast-in-place deep foundation element not enclosed by a structural steel pipe or tube shall be determined using the following equation: (Equation 18-6) where: f 'c = Specified compressive strength of concrete or grout, psi S m = Elastic section modulus, neglecting reinforcement and casing, cubic inches

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