Abstract
This paper presents a synthetic evaluating method for the seismic behaviour of pipelines during earthquakes. The proposed method consists mainly of three analytical methods, which are the reliability analysis method for lifeline networks, seismic response analysis of surface ground layers and the pseudo static response analysis of buried pipelines. The reliability analysis method for lifeline networks is based on the Monte Carlo method. The seismic response analysis method is two-dimensional effective stress analysis based on Biot’s two-phase mixture theory and Iai’s constitutive equation. The pipeline analysis is based on the beam theory on an elastic foundation and modified transfer matrix method. Numerical computations are performed for models with various conditions of ground and pipes. As a result, axial and lateral response characteristics of pipelines are shown and evaluated by relating with earthquakes, grounds and pipelines conditions.
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Published on 01/01/2009
Volume 2009, 2009
DOI: 10.2495/eres090341
Licence: CC BY-NC-SA license
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