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Buried pipelines in large fault movements

Conference ·
OSTI ID:403431
 [1];  [2]
  1. California Inst. of Tech., Pasadena, CA (United States). Earthquake Engineering Research Lab.
  2. Old Dominion Univ., Norfolk, VA (United States). Dept. of Civil and Environmental Engineering
Responses of buried pipelines in large fault movements are examined based upon a non-linear cantilever beam analogy. This analogy assumes that the pipeline in a large deflection zone behaves like a cantilever beam under a transverse-concentrated shear at the inflection point with a uniformly distributed soil pressure along the entire span. The tangent modulus approach is adopted to analyze the coupled axial force-bending moment interaction on pipeline deformations in the inelastic range. The buckling load of compressive pipeline is computed by the modified Newmark`s numerical integration scheme. Parametric studies of both tensile and compressive pipeline responses to various fault movements, pipeline/fault crossing angles, soil/pipe friction angles, buried depths, pipe diameters and thickness are investigated. It is shown by the comparisons that previous findings were unconservative.
OSTI ID:
403431
Report Number(s):
CONF-9508226--; ISBN 0-7844-0101-2
Country of Publication:
United States
Language:
English

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