大尺度圆锥结构的冰堆积计算

ANALYSIS OF RUBBLE ICE IN FRONT OF A WIDE CONE STRUCTURE

大尺度圆锥结构的冰力计算不同于小尺度圆锥结构，必须考虑冰堆积的影响．Ｍａａｔｔａａｎｅｎ根据在波兹亚湾Ｋｃｍｉ－Ｉ灯塔试验圆锥上所取的经验建立了大尺度圆锥结构冰力分析有限元模型，但对堆积尺度未给出明确表达．本文分析推导了该模型的这一细节．最后，应用该模型对ＪＺ９—３锥体平台做了堆积分析，分析结果得到设计部门的认可．

here are distinctions between the analyses of ice forces on wide and narrow cone structures. The effect of rubble ice on the total ice load must be considered in the former case. Maattanen presented a finite element model for the analysis of ice forces on a large cone structure on the basis of his field experience at the Kemi- I lighthouse in the Gulf of Bothnia. The height of the rubble ice, however, was not clearly defined in his presentation. In this paper, the rubble height is determined from a reasonable derivation, and this model was used in the analysis ofloads on the JZ9-3 artificial island. The results were accepted by the designer.