摘要
水闸往往为不均匀地基,水闸平底板的内力分析模型应为不均匀地基上的板。应用集中力弹簧模型的概念,建立了考虑三向附加应力的压缩变形地基沉降弹簧模型,该模型能较好地模拟板下不均匀地基。将弹性薄板的有限单元法与改进的集中力弹簧模型相结合,能有效地解决不均匀地基上基础板的求解问题。讨论了闸底板与地基间作用力的无拉分析问题。
Generally sluices are built on the non-homogeneous ground, therefore, the analysis model for internal force of sluice plate should be considered as an elastic plate on the non-homogeneous ground. In this paper, by using the concept of the concentrated force spring model, a spring model of foundation settlement is established in which compressive deformation due to three-dimensional stress is considered, this spring model can better simulate the non-homogeneous ground under the foundation plate. By combining the finite element method of the elastic thin plate with the concentrated force spring model improved, the problem of internal force analy- sis of foundation plate on non-homogeneous ground can be solved effectively. An analysis of non-tension stress between sluice plate and ground is also made in this paper.
出处
《中国农村水利水电》
北大核心
2013年第5期118-121,共4页
China Rural Water and Hydropower
关键词
不均匀地基
水闸底板
内力分析
集中力弹簧模型
薄板有限元
non-homogeneous ground
sluice plate
internal force analysis
concentrated force spring model
thin plate finite element
