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本文使用矩形单元非保续位移模式计算文克尔地基上的基础板。根据二法方程组的比较,求得几何相似的二基础板之间,单元结点位移相关时应满足的条件。据此,对各计算参数设定基准值,求解标准板的内力和挠度,制表备查。工程设计时则根据实际参数值按文中导出的公式或列线图求得与之相关的标准板板厚,查相应表格,乘一系数,即得工程基础板的内力、挠度和地基反力值。文中对若干计算参数的变化和不允许地基反力出现拉力时对弯矩的影响作了初步的讨论。文末附有计算实例,以供参考。
In this paper, the basic plate on the Winkler foundation is calculated using the non-conservative displacement model of rectangular elements. According to the comparison of the two sets of equations, the conditions that should be met when the geometrical similarities between the two basic plates and the displacements of the unit nodes are found. Based on this, the reference values are set for each calculation parameter, and the internal forces and deflections of the standard plate are solved and tabulated for future reference. In engineering design, according to the actual parameter values, the relevant plate thickness is calculated according to the formula or nomogram derived in the paper. The corresponding table is multiplied by a coefficient to obtain the internal force, deflection and foundation reaction force value of the engineering foundation plate. . In this paper, the influence of bending moments on the change of several calculation parameters and the influence of unallowable foundation reaction force on the bending moment are discussed. At the end of the article, there are calculation examples for reference.