Elasto-Plastic Analysis of Buried Pipelines Subjected to the Large Fault Movement

Date of Award

Spring 1993

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Civil & Environmental Engineering

Program/Concentration

Civil Engineering

Committee Director

Leon R. L. Wang

Committee Member

Isao Ishibashi

Committee Member

Zia Razzaq

Call Number for Print

Special Collections LD4331.E54W36

Abstract

The responses of buried pipelines subjected to a large fault movement are examined based upon a new non-linear cantilever beam analogy. This analogy assumes that the pipeline in the large deformation zone behaves like a cantilever beam subjected to a transversely concentrated shear at the inflection point and a uniformly distributed soil pressure along the entire span. Tangent modulus approach is adopted to analyze the coupled axial force-bending moment interaction effect on pipeline deformation in the inelastic range. Parametric studies of both tensile and compressive responses of buried pipeline to various fault movements, crossing angles, buried depths, pipe diameters and thicknesses are investigated and compared with the previous available results. Stability analysis for the pipeline subjected to a compressive fault is also presented.

Rights

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DOI

10.25777/09qr-nr52

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