Abstract
This paper deals with reliability-based design systems of very large floating structures based on the dynamic response and strength analysis considering the hydroelastic wave propagation of the structure under wave-induced loads. Firstly, a limit state and reliability-based sensitivity analysis is shortly presented. Next, a simplified estimation method is introduced for the dynamic response and strength of the structure in regular and irregular waves. Then, the validity of the method is demonstrated through experimental results for a mat-type floating structure model in regular waves. Finally, the features of the dynamic behaviors and reliability-based sensitivity factors are investigated by a numerical example applied to a 5000-m-class very large floating structure under trial design.
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