New Perspectives on the Damage Estimation for Buried Pipeline Systems Due to Seismic Wave Propagation

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by Omar Pineda-Porras, Post-Doctoral Research Associate; Energy and Infrastructure Analysis (D-4)—Earth & Environmental Science (EES-11), Los Alamos National Laboratory, P.O. Box 1663, MS K575, Los Alamos NM 87545,,

Document Type: Proceeding Paper

Part of: TCLEE 2009: Lifeline Earthquake Engineering in a Multihazard Environment

Abstract: Over the past three decades, seismic fragility formulations for buried pipeline systems have been developed following two tendencies: 1) the use of earthquake damage scenarios from several pipeline systems to create general pipeline fragility functions; and, 2) the use of damage scenarios from one pipeline system to create specific-system fragility functions. In this paper, the advantages and disadvantages of both tendencies are analyzed and discussed; in addition, a summary of what can be considered the new challenges for developing better pipeline seismic fragility formulations is presented. The most important conclusion of this paper states that more efforts are needed to improve the estimation of transient ground strain —the main cause of pipeline damage due to seismic wave propagation; with relevant advances in that research field, new and better fragility formulations could be developed.

Subject Headings: Buried pipes | Seismic waves | Seismic tests | Damage (structural) | Wave propagation | Pipelines | Seismic effects | Earthquakes | Transient response |

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