Wave and earthquake effects on axisymmetric offshore structures

吴宋仁,; Isaacson, Michael; Song-ren, WU

doi:10.1007/bf01910434

Appl Math Mech

1984

DOI: 10.1007/bf01910434

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Wave and earthquake effects on axisymmetric offshore structures

吴宋仁吴宋仁

Michael Isaacson

WU Song-ren

Abstract: Vertical axisgmmetric structures have found a variety of applications in offshore engineering

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Cited by 3 publications

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Torsionally coupled dynamic performance analysis of asymmetric offshore platforms subjected to wave and earthquake loadings

2010

Earthq. Eng. Eng. Vib.

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The dynamic equations of motion of asymmetric offshore platforms under three different environmental conditions: seismic action, wave action and their combination are established in this paper. In establishing these motion equations, three typical eccentricity types including mass eccentricity, rigidity eccentricity and their combination were considered, as are eccentricities that occur uni-directionally and bi-directionally. The effects of the eccentricity type, the dynamic characteristics and the environmental conditions on the torsional coupling response of platforms are investigated and compared. An effort has also been made to analyze the infl uence of accidental eccentricity on asymmetric platforms with different eccentricity in two horizontally orthogonal directions. The results are given in terms of non-dimensional parameters, accounting for the uncoupled torsional to lateral frequency ratio. Numerical results reveal that the eccentricity type has a great infl uence on the torsionally coupled response under different environmental conditions. Therefore, it is necessary to consider the combination of earthquake and wave action in the seismic response analysis of some offshore platforms.

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Torsionally coupled dynamic performance analysis of asymmetric offshore platforms subjected to wave and earthquake loadings

2010

Earthq. Eng. Eng. Vib.

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Hydrodynamic loadings due to the motion of large offshore structures

Sharan

1989

Computers & Structures

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Shaking table tests on a deep-water high-pier whole bridge under joint earthquake, wave and current action

Yun

2020

Applied Ocean Research

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Wave and earthquake effects on axisymmetric offshore structures

Abstract: Vertical axisgmmetric structures have found a variety of applications in offshore engineering

Cited by 3 publications

References 3 publications

Torsionally coupled dynamic performance analysis of asymmetric offshore platforms subjected to wave and earthquake loadings

Torsionally coupled dynamic performance analysis of asymmetric offshore platforms subjected to wave and earthquake loadings

Hydrodynamic loadings due to the motion of large offshore structures

Shaking table tests on a deep-water high-pier whole bridge under joint earthquake, wave and current action

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