SEISMIC BEHAVIOUR OF ABOVE-GROUND OIL PIPELINES

The dynamic behavior of above-ground oil pipelines which are allowed to slide back and forth on intermediate supports during strong motion earthquakes is studied. This sliding is resisted by friction between the pipe and the top of the support. The main objective of the study is to determine the effect of this non-linear friction on both the static and dynamic stresses in the pipe. The study also considers the influence of other critical parameters such as: pipeline configuration, seismic wave velocity, initial temperature differential and internal pressure, and ground motion characteristics. Results show that the critical bending moments in the pipe occur during the static loading and that with seismic excitation, these moments tend to shake down as the pipe moves to a more stress free configuration. It is shown that the use of sliding friction can be an effective means of dissipating seismic energy and thereby damping the dynamic response of the pipeline even for low values of the coefficient of friction. /Author/

  • Corporate Authors:

    Wiley (John) & Sons, Limited

    Baffins Lane
    Chichester, Sussex  England 
  • Authors:
    • Anderson, J C
    • Johnston, S B
  • Publication Date: 1975-4

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Filing Info

  • Accession Number: 00096222
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 15 1975 12:00AM