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假定基础板对地基的作用为一连续分布荷载 ,采用 16节点退化实体等参元对基础板进行有限元分析。实体退化等参元不仅能够比较精确地描述基础板的平面形状 ,而且特别适合于变厚度基础板的有限元分析。Winkler地基上的板和弹性地基上的板的数值算例表明 ,本文方法适用于厚、薄基础板的分析 ,且具有精度高、能够考虑地基水平刚度等优点
Assuming that the action of foundation plate on foundation is a continuous distributed load, the finite element analysis of foundation plate is carried out by using the 16-node degradation entity and other parameters. Enthalpy of degradation and other parameters not only can describe the plane shape of the base plate more accurately, but also is especially suitable for the finite element analysis of the base plate with variable thickness. The numerical examples of the plates on the Winkler foundation and the elastic foundation show that the proposed method is suitable for the analysis of thick and thin foundation slabs and has the advantages of high precision and considering the horizontal stiffness of foundation