The stress and deformation in any spots of 3d foundation soils which is under rectangular homogeneously distributed load are calculated and analyzed by methods of elastic theory and fortran program ; 3 . the scope of foundation soils deformation under rectangular homogeneously distributed load is analyzed by the use of slide and move thread theory ; 4 . by using the finite element analysis software of ansys , with engineering examples , the deformation characteristics of 3d elastic - plastic foundation soils under rectangular homogeneously distributed load are imitated and analyzed , at the same time , the method of settlement calculation of soils is checked 研究内容包括: 1 、测试了天然地基、复合地基在不同压板形状及尺寸下承压板下及周围地基土体的沉降,并做了数据计算分析; 2 、利用弹性理论方法和fortran程序分析计算了三维地基土体在矩形均布荷载下任意位置点的应力及变形; 3 、利用滑移线方法分析了均布荷载下土体的变形范围问题; 4 、应用ansyas大型有限元分析软件,结合工程实例,模拟分析了三维弹塑性地基土体在方形均布荷载下的变形特性,并对地基沉降计算方法进行了工程验算。
The main work carried out goes as follows : ( 1 ) the principal theory of nonlinear finite element analysis was expatiated and a computer program was developed with fortran powerststion . the reliability of the fortran program was proved by comparing computed results with experimental results , besides , by using this program . the appropriate length of shear connections of slit shear walls was investigated 本文的主要内容有以下几个方面: ( 1 )阐述了剪力墙结构非线性有限元分析的基本理论,编制了静力非线性分析的fortran程序,程序的可靠性通过理论计算与试验结果的对比加以验证,并用该程序分析了带竖缝耗能剪力墙,探讨了耗能剪力墙结构的连梁合理高度问题。