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  • Seismic responses of an offshore jacket-type platform incorporated with tuned liquid dampers

    Author(s)
    Lotfollahi-Yaghin, MA
    Ahmadi, H
    Tafakhor, H
    Griffith University Author(s)
    Ahmadi, Hamid
    Year published
    2016
    Metadata
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    Abstract
    In this article, the efficiency of tuned liquid damper in controlling the dynamic responses of offshore jacket-type platforms under earthquake excitation is investigated. This type of dampers consisting of a number of fluid-containing tanks can be installed on the topside of the platform. Hydrodynamic loads induced by the sloshing of the fluid inside the tank act as resistant forces against the vibration and can thus control the structural response. In this research, using finite element-based software package ANSYS, a jacket-type platform having dimensions appropriate for the Persian Gulf climate (case study: SPD1 platform) ...
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    In this article, the efficiency of tuned liquid damper in controlling the dynamic responses of offshore jacket-type platforms under earthquake excitation is investigated. This type of dampers consisting of a number of fluid-containing tanks can be installed on the topside of the platform. Hydrodynamic loads induced by the sloshing of the fluid inside the tank act as resistant forces against the vibration and can thus control the structural response. In this research, using finite element-based software package ANSYS, a jacket-type platform having dimensions appropriate for the Persian Gulf climate (case study: SPD1 platform) was modeled and then dynamically analyzed by the modal and time-history approaches subjected to the records of El Centro, Kobe, and Tabas earthquakes. The tuned liquid dampers were optimally designed and after the verification of FE results, the dynamic responses of the jacket-type platforms with and without the tuned liquid damper system were compared.
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    Journal Title
    Advances in Structural Engineering
    Volume
    19
    Issue
    2
    DOI
    https://doi.org/10.1177/1369433215624340
    Subject
    Building
    Civil engineering
    Publication URI
    http://hdl.handle.net/10072/412632
    Collection
    • Journal articles

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