Author(s): Tuomo Karna; Fengwei Guo; Sveinung Loset; Mauri Maattanen
Linked Author(s): Mauri Määttänen
Keywords: No keywords
Abstract: This paper addresses a condition where a vertical faced structure is subjected to actions posed by sheet ice. Previous laboratory tests as well as full-scale experiments indicate that quasi-static loads can be magnified at a low ice speed if the structure is compliant. Further laboratory tests were carried out to investigate this phenomenon. The test set-up as well as the new results are described. An extensive database that has been obtained by now shows that the ice load on a vertical structure attains its highest value in conditions where intermittent crushing is the dominating ice failure mode. The new data analyzed in this paper indicates that the waterline displacement of the structure can be used as an explanatory parameter. The new data also indicate that the maximum peak values of the ice load increase with the compliance of the structure, that is, with the waterline displacement.
Year: 2008