A novel offshore platform blast wall design with energy absorption mechanism

Jinjing Liao

    Research output: ThesisMaster's Thesis

    1501 Downloads (Pure)

    Abstract

    Blast-walls are important structures in offshore platforms. It is difficult for traditional designs to meet code-compliances on wall deflection and weld tear-out. This study proposes a novel design using flexible supports filled with polymethacrylimide foam and rotational springs, allowing the wall to slide/rotate certain distances/angles to reduce the high stresses at supports and dissipate energy through foam deformations. Analytical model with numerical validation is developed to demonstrate the feasibility and effectiveness this design concept. Around 40% reduction in deflection and less than 5% plastic strains at welded supports are achieved. Guidance for optimal design are also provided through parametric study.
    Original languageEnglish
    QualificationMasters
    Awarding Institution
    • The University of Western Australia
    Award date29 Aug 2017
    DOIs
    Publication statusUnpublished - 2017

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