Centrifuge Modeling of Buried Pipelines

Michael O'Rourke, Vikram Gadicherla, Tarek Abdoun

    Research output: Contribution to conferencePaper

    Abstract

    Fault crossing, lateral spreads and other types of permanent ground deformation (PGD) are arguably the most severe seismic hazards for continuous buried pipelines. Current analysis and design procedures, to a great extent, are based upon Finite Element (FE) modeling. There are, unfortunately, relatively few full- scale case histories which could be used to benchmark or confirm the applicability of FE assumptions. That is, full scale field verification of the predicted behavior of buried pipes is, at best, sparse. In this paper, a new centrifuge based method for determining the response of continuous buried pipeline to PGD is presented. Laboratory equipment, experimental procedures, similitude relations as well as sample results are presented. Specifically, physical characteristics of the Rensselaer centrifuge are described, as well as those for our current lifeline experiment split-box. The split-box contains the model pipeline and surrounding soil and is manufactured such that half can be offset in flight, simulating PGD. Governing similitude relations which allow one to determine the physical characteristics (diameter, wall thickness, material modulus of elasticity) of the model pipeline are presented. Finally the recorded strains induced in a prototype 0. 64 m (25 in.) diameter, 0.013 m (0.5 in) wall thickness, steel pipe by 0.80 m (2.6 feet) and 2.0 m (6.6 feet) of full scale fault offset for a prototype steel pipe 0.95 m (37 in.) diameter, 1.9 cm (.75 in.) wall thickness are presented and compared to corresponding FE results.

    Original languageEnglish (US)
    Pages757-768
    Number of pages12
    StatePublished - Nov 20 2003
    EventProceedings of the Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering - Long Beach, CA, United States
    Duration: Aug 10 2003Aug 13 2003

    Other

    OtherProceedings of the Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering
    CountryUnited States
    CityLong Beach, CA
    Period8/10/038/13/03

    Fingerprint

    centrifuges
    centrifugal model test
    pipe
    centrifuge
    boxes
    steel
    prototypes
    laboratory equipment
    steels
    case histories
    seismic hazard
    hazards
    elasticity
    soils
    modulus of elasticity
    flight
    history
    modeling
    soil
    experiment

    ASJC Scopus subject areas

    • Geophysics

    Cite this

    O'Rourke, M., Gadicherla, V., & Abdoun, T. (2003). Centrifuge Modeling of Buried Pipelines. 757-768. Paper presented at Proceedings of the Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering, Long Beach, CA, United States.

    Centrifuge Modeling of Buried Pipelines. / O'Rourke, Michael; Gadicherla, Vikram; Abdoun, Tarek.

    2003. 757-768 Paper presented at Proceedings of the Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering, Long Beach, CA, United States.

    Research output: Contribution to conferencePaper

    O'Rourke, M, Gadicherla, V & Abdoun, T 2003, 'Centrifuge Modeling of Buried Pipelines' Paper presented at Proceedings of the Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering, Long Beach, CA, United States, 8/10/03 - 8/13/03, pp. 757-768.
    O'Rourke M, Gadicherla V, Abdoun T. Centrifuge Modeling of Buried Pipelines. 2003. Paper presented at Proceedings of the Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering, Long Beach, CA, United States.
    O'Rourke, Michael ; Gadicherla, Vikram ; Abdoun, Tarek. / Centrifuge Modeling of Buried Pipelines. Paper presented at Proceedings of the Sixth U.S. Conference and Workshop on Lifeline Earthquake Engineering, Long Beach, CA, United States.12 p.
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