Correlated Non-Gaussian Models in Offshore Structural Reliability

by Steven R. Winterstein, Stanford Univ, United States,
Rabi S. De, Stanford Univ, United States,
Peter Bjerager, Stanford Univ, United States,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract: Correlated non-Gaussian models of offshore loads and responses are developed. These require only correlation coefficients and either marginal distributions or moments. Simple estimates of the equivalent Gaussian correlation ρμ are shown. Moment-based models of both long-term environmental variables, such as significant wave height and period, and short-term wave elevation are combined. These quantify the effects of model uncertainty in long-term distributions and nonlinear wave kinematics on extreme wave predictions.

Subject Headings: Nonlinear waves | Water waves | Kinematic waves | Structural models | Structural reliability | Offshore structures | Gaussian process | Structural analysis

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