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增量破坏型机动安定性分析方法及其应用
Numerical method of shakedown analysis based on kinematical-type theorem forincremental collapse and its applications
【摘要】 根据避免累积塑性变形发生的安定准则,构造了相应的安定性数值求解方法,进而用于确定海洋平台地基的安定荷载上限近似解,为评价地基在复杂变值荷载作用下的承载力提供了依据。
【Abstract】 In this paper, based on the kinematicaltype shakedown criterion for incremental collapse, a computational procedure for avoiding incremental collapse is formulated and then is applied to determine the bearing capacity of offshore platform foundations under transient or cyclic loading.
【关键词】 安定性分析;
机动安定性定理;
交变塑性;
增量破坏;
海洋平台地基;
承载力;
【Key words】 shakedown analysis; kinematical-type shakedown theorem; alternating plasticity; incremental collapse; offshore platform foundation; bearing capacity;
【Key words】 shakedown analysis; kinematical-type shakedown theorem; alternating plasticity; incremental collapse; offshore platform foundation; bearing capacity;
【基金】 国家自然科学基金资助项目(50179006,59779017);教育部跨世纪优秀人才培养计划研究基金资助项目
- 【文献出处】 海洋工程 ,The Ocean Engineering , 编辑部邮箱 ,2003年01期
- 【分类号】P715.41
- 【被引频次】9
- 【下载频次】101