| Popis: |
As is the case for other environmental conditions, design ice loads for offshore structures are characterized as the extremal loads corresponding to a certain probability level (e.g., annual probability of exceedance or associated return period). In the case of ice loads, the load level can be dependent on a large number of uncertain parameters such as the ice velocity, thickness, geometry, and mechanical properties. The estimation of design ice loads therefore requires deriving the load probability distribution from the probability distributions of the input parameters and an ice-structure interaction model, and then using the result in appropriate extremal analysis models based on the characteristics of the ice loading process. |
