文克勒地基在矩形水池有限元分析中的合理应用  

The Reasonable Application of Winkler Foundation Model in Finite Element Analysis of Rectangular Tank

作　　者：吴晨旭 郎庆善 许梁 

机构地区：[1]浙江省城乡规划设计研究院,杭州310007

出　　处：《特种结构》2014年第3期1-6,共6页Special Structures

摘　　要：针对文克勒地基模型应用于水池结构有限元计算中的一些不合理认识,通过力学模型的分析以及有限元对具体水池结构的复核验算,指出水池结构采用文克勒地基模型进行有限元计算时必须设置合理的边界条件,合理的边界条件必须满足水池结构和地基的变形、地基反力分布与实际趋势相似;对底板四个角点施加不动铰支座是一种合理的边界约束条件;同时底板作为壁板固结支承的模式也是一种能满足工程精度要求的合理简化模式。Aiming at some unreasonable knowledge about the application of Winkler foundation model to the pool structure＇s finite element calculation, using the methods of the analysis of mechanical model and Midas/Gen finite element software＇s actual application to tank structure, it is pointed out that the tank structure must be set reasonable boundary conditions when be carried on finite element calculation applying the Winkler foundation model the rational boundary conditions are that make tank structure deformation 、 foundation deformation and sub grade reaction distribution to be coordinated with the actual trend. To fix hinge supports at the bottom four corners is a reasonable boundary condition. At the same time, the model that the bottom is fixed support for plate is a simplified model that can meet the engineering requirement.

关 键 词：文克勒地基 矩形水池 有限元计算 边界条件 合理应用 

分 类 号：TU471.2[建筑科学—结构工程]