• dynamic response analysis of an offshore platform due to seismic motions

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 753
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     a three-dimensional (3d) numerical model for dynamic response analysis of seismic-induced motions is developed using the modal analysis and substructure methods. the developed model and an impedance function method are applied to an offshore platform with a pile–soil foundation system. the newmark βmethod is used as a time integration scheme. the displacement and bending stresses at selective nodal points on the structure are computed for various maximum seismic accelerations and the shear-wave velocities of soil. using a reliability index obtained by the monte carlo simulation method, we successfully performed a reliability evaluation at the critical points of the structure for various seismic motions and soil conditions.

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