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Use of Structural Reliability Analysis for Uprating Above Ground Installations

[+] Author Affiliations
A. Francis, C. S. Jandu, M. A. McCallum

Advantica Technologies, Ltd., Loughborough, UK

Paper No. PVP2002-1305, pp. 3-13; 11 pages
  • ASME 2002 Pressure Vessels and Piping Conference
  • Fitness for Service Evaluations and Non-Linear Analysis
  • Vancouver, BC, Canada, August 5–9, 2002
  • Conference Sponsors: Pressure Vessels and Piping Division
  • ISBN: 0-7918-4653-9
  • Copyright © 2002 by ASME


In support of an extensive programme to increase the operating pressure of the UK National Transmission System (NTS) Advantica Technologies Limited have developed a structural reliability based methodology which is used to demonstrate the safe operation of Above Ground Installations (AGIs) at increased pressure levels. The approach is based on Advantica’s methodology for demonstrating the safe operation of pipeline sections at high design factors. It incorporates the effects of stress concentrations occurring at Tees and bends within complex pipework systems, and addresses the credible failure modes, including shakedown, corrosion and fatigue, taking account of pressure and thermal loadings. Particular attention is given to the time-dependent nature of the failure modes and the mitigating effect of the pre-service hydrostatic test and weld inspections is included.

Copyright © 2002 by ASME



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