مقاله Dynamic response analysis of an offshore platform due to seismic motions : تی پی بین

خلاصه مقاله

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 β

method 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.

نویسندگان

Min-su Park [ School of Naval Architecture and Ocean Engineering, University of Ulsan, Republic of Korea ]

Weoncheol Koo [ School of Naval Architecture and Ocean Engineering, University of Ulsan, Republic of Korea ]

Kenji Kawano [ Department of Ocean and Civil Engineering, Kagoshima University, Japan ]

کلمات کلیدی

Modal analysis Substructure method Impedance function Monte Carlo simulation method Reliability evaluation Seismic motion

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Engineering Structures

Engineering Structures provides a forum for a broad blend of scientific and technical papers to reflect the evolving needs of the structural engineering and structural mechanics communities. Particularly welcome are contributions dealing with applications of structural engineering and mechanics principles in all areas of technology. The journal aspires to a broad and integrated coverage of the effects of dynamic loadings and of the modelling techniques whereby the structural response to these loadings may be computed.

حوزه های تحت پوشش : structural mechanics, structural engineering