Buried pipelines in large fault movements
Conference
·
OSTI ID:403431
- California Inst. of Tech., Pasadena, CA (United States). Earthquake Engineering Research Lab.
- 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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