Second Generation Models for Strain-Based Design

Pipelines that are subjected to large ground movements, such as those resulting from frost heave, thaw subsidence, or seismic actions, can only be economically designed using strain-based design (SBD) methods. There is an urgent need to properly address the lack of physical test data, which would allow for further verification and development of tensile strain capacity models, and consequently, documented procedures for establishing tensile strain capacity limits. The primary objective of this project is to provide a set of tensile strain design models for the strain-based design of pipelines. The implementation of the tensile strain design models involves (1) linepipe specifications, (2) welding procedure qualification, (3) field girth weld flaw acceptance criteria, and (4) field construction practice. In the case of welding procedure qualification, the testing and requirements of tensile and toughness properties are some of the key elements. These relevant areas are covered as a part of the overall development of tensile strain design models. In a longer term, this project should provide substantial technical basis for the standardization of the treatment of tensile strain capacity (TSC).

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 173p

Subject/Index Terms

Filing Info

  • Accession Number: 01643708
  • Record Type: Publication
  • Contract Numbers: DTPH56-06-T000014; Contract PR-ABD-1 – Project 2
  • Files: NTL, TRIS, ATRI, USDOT
  • Created Date: Jul 26 2017 11:48AM