摘要
研究了冰排与斜面结构的相互作用过程.文中将冰排分为在斜面附近脱离水面部分和较远处漂浮 于水面部分两个区域,建立了冰排因弯曲而发生破断的数学模型,根据弯矩分布分析了冰排可能的破断位置, 从而得到冰排与斜面结构相互作用时的破断长度解析表达式.结果表明,冰排破断长度既不是冰厚的固定倍 数,也不与冰排特征长度直接相关.计算结果与前人实验结果吻合较好,可以为近海冰区抗冰结构的设计提供 参考.
The interaction between ice sheet and sloping structure is studied. Models are built according to the emersed part and floating part of the ice sheet, respectively. Bending moment distribution in the ice sheet is analyzed to determine where a bending failure may occur. The analytic solution of breaking length for ice sheet is obtained. The results indicate that the breaking length of ice sheet is neither proportional to the thickness of ice sheet nor dependent on the characteristic length of ice sheet. The results in this paper are consistent with the experimental data in previous researches, which can serve as a reference for design and field experiment of offshore ice-resistant structure.
出处
《力学与实践》
CSCD
北大核心
2005年第2期14-17,共4页
Mechanics in Engineering
基金
国家863项目(2001AA602015)资助.
