Hybrid Response Analysis of Buried Corrugated Pipeline Under Seismic Wave

by Shiro Takada, Kobe Univ, Japan,
Shin Katagiri, Kobe Univ, Japan,
Atsushi Yamashita, Kobe Univ, Japan,
Tatsuhiko Shinmi, Kobe Univ, Japan,



Document Type: Proceeding Paper

Part of: Lifeline Earthquake Engineering

Abstract:

Polyvinyl chloride and polyethylene corrugated pipes are recently used for buried water or sewer pipelines and also used as containers for electric cables. Seismic behavior of these pipelines is not clear and methods of response analysis have not been established. Present paper proposes a method of response analysis of buried corrugated pipelines under seismic wave. The proposed method is the mixture of an axi-symmetric three dimensional finite element method and a beam theory. Soil spring constants related with soil friction force which plays an important role in the analysis of beam theory were obtained by experiments. Following these procedures of analytical method, seismic behaviors of the corrugated pipelines were clarified to be matched with ground motions.

Subject Headings: Buried pipes | Seismic waves | Plastic pipes | Soil-pipe interaction | Seismic tests | Cables | Soil analysis

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