DEVELOPMENT OF METHODS FOR DETERMINING ICE LOADS AND REQUIREMENTS FOR ICE REINFORCEMENT STRUCTURES

Authors present an analysis of the development of methods for determining ice loads and the requirements for ice reinforcement designs. It covers from those ones based on purely empirical approaches to those arising from modern physical ideas about the interaction of the vessel hull with ice. The requirements for ice reinforcements that are most widely used in practical design are more detailed: Finnish-Swedish requirements, which were developed in the early 70s of the last century and are still the basis in foreign practice for designing ice reinforcement structures of ships to be operated in relatively light ice conditions; Canadian vessel hull requirements to prevent pollution of the Canadian Arctic; requirements developed by Russian experts, included in the Rules of the Russian Maritime Register of Shipping, which are basic for ships operating in the Russian Arctic; unified requirements of the International Association of Classification Societies (IACS) for polar vessels, based on the Canadian and Russian approaches, included in the Rules of Classification Societies — the IACS Members.

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