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V1 Media is an approved AIA continuing-education provider. AIA-approved courses are a valid form of Professional Development for the Architecture, Engineering and Construction (AEC) industries via self-learning courses in all states.

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Understanding the Impact of Pipe Stiffness on Long-Term Deflections


Course Information

Pipe stiffness in the pipe industry is a standard test that is performed on actual pipe samples to determine their ring stiffness. Many product specifications in the pipe industry require a minimum target pipe stiffness be achieved as a requirement for that standard.

Pipe stiffness is generally tested per the requirements of ASTM D2412. Simplistically, this test places a relatively short sample of the pipe barrel between two parallel steel plates. The plates then are drawn together at a prescribed rate, thereby compressing the pipe into an oval geometry. The pipe is deformed until it is compressed to 95% of its original height. The load required to compress the pipe to this dimension is recorded and used to compute the pipe stiffness for the pipe.

Author

DARRELL J. SANDERS, P.E.

Learning Objectives

  • What is the significance of laboratory-tested pipe-stiffness values in the field?
  • What are the differences between short- and long-term pipe deflections?
  • What impact does pipe stiffness have on long-term pipe- deflection levels?

Abstract

This Professional Development Section provides an opportunity to earn continuing education credit without cost. Take a look at the learning objectives, read this sponsored article, and complete the quiz at www.v1-education.com.

Answers to the quiz will automatically be calculated. If eight or more of the questions are answered correctly, participants can immediately download a certificate of completion and be awarded 1.0 professional-development hours (equivalent to 1.0 continuing education units in most states).

V1 Media is an approved provider of the American Institute of Architects’ Continuing Education System (AIA/CES). It is up to each licensee to determine if this credit meets their governing board’s registration requirements.

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