Strain-Based Design and Assessment in Critical Areas of Pipeline Systems with Realistic Anomalies

Pipelines may experience large longitudinal strains from ground settlement/movement and/or other unusual upsetting events. Failures from high longitudinal strains can have serious consequence to human lives and environment. These pipelines need to be designed and maintained using so-called strain-based design and assessment (SBDA). Recent systematic development of SBDA has been largely limited to nominally straight sections of pipelines with the same nominal pipe properties, wall thickness, diameters, and mechanized gas metal arc welding (GMAW) girth welds. Welds connecting fittings to the rest of the pipelines tend to have less uniform properties than mechanized GMAW welds and could be subjected to higher strains than mainline welds. Many pipelines in their lifetime can experience corrosion and mechanical damage. Current SBDA methodology does not cover welds to fittings and pipelines with anomalies. The objective of this project was to develop practical and ready-to-use guidelines and tools for SBDA of pipelines containing fittings, and corrosion and mechanical damage subjected to high longitudinal strains. The technology developed here enables stakeholders to focus on potentially the weakest link in their systems in the design of new pipelines and the maintenance of existing pipelines.

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• Summary URL:
  https://primis.phmsa.dot.gov/matrix/PrjHome.rdm?prj=556
• Supplemental Notes:
  • Appendices A-G are available at the URLs above. Together these appendices include 344 pages.
• Corporate Authors:

  Center For Reliable Energy Systems

  5960 Venture Drive, Suite B
  Dublin, OH  United States  43017

  C-FER Technologies

  200 Karl Clark Road
  Edmonton, Alberta  Canada  T6N 1H2

  National Institute of Standards and Technology

  100 Bureau Drive
  Gaithersburg, MD  United States  20899-8615

  Natural Resources Canada

  3484 Limebank Road
  Ottawa, Ontario  Canada  K1A 0E4

  Pipeline and Hazardous Materials Safety Administration

  Department of Transportation
  East Building, 2nd Floor, 1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Liu, Ming
  • Zhou, Honggang
  • Wang, Bo
  • Wang, Yong-Yi
  • Bergman, Jason
  • Ayton, Brent
  • Stephens, Mark
  • Weeks, Timothy
  • Gianetto, Jim
• Publication Date: 2017-8-31

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 231p

Subject/Index Terms

• TRT Terms: Corrosion; Design; Fittings; Gas metal arc welding; Guidelines; Maintenance; Pipelines; Strain (Mechanics); Welds
• Subject Areas: Design; Maintenance and Preservation; Pipelines;

Filing Info

• Accession Number: 01754318
• Record Type: Publication
• Contract Numbers: DTPH56-14-H-00003
• Files: TRIS, ATRI, USDOT
• Created Date: Oct 7 2020 3:34PM