Author(s)

A. Romolo

Abstract

The maximum wave height in the lifetime of a structure has to be calculated for the design of sea structures. Usually we assume that the occurrence of highest waves, which occurs during storms, is given by a Poisson process. Therefore, the encounter probability ) , ( R L P , which is defined as the probability that the high sea waves, for the fixed value of the return period, occurs at least once in the lifetime L of the structure, is equal to 1–exp(–L/R), where R is the return period of high waves exceeding a fixed threshold. In this paper the encounter probability is calculated in some location by using two different models. The first one was given by Krogstad [1], who obtained an expression of the encounter probability which is exact as L tends to infinity. The second model is based on the new Boccotti’s approach [3], who

Keywords