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本文以路面工程为应用背景,针对弹性地基上承受横向载荷的板体进行了非线性有限元分析,采用考虑横向剪切变形的中厚板非协调单元模式,改进了数值性能,避免由于局部小面积受载时,剪切变形较大带来的误差,同时将地基刚度矩阵引入失衡力迭代格式中,保证解的收敛性.文中给出了载荷位于板中、板边、板角时的板体变形情况和破坏状况以及极限承载能力,并与塑性铰线理论、弹性薄板理论进行了比较和分析.
In this paper, pavement engineering as the application background, a nonlinear finite element analysis of the plate subjected to lateral load on the elastic foundation is carried out, and the numerical performance is improved by using the nonconforming plate and plate mode considering transverse shear deformation, And the error of shear deformation is large when the area is loaded, meanwhile, the stiffness matrix of foundation is introduced into the iterative scheme of unbalanced force to ensure the convergence of the solution.In this paper, the plate with plate load, plate edge and plate angle Body deformation and failure conditions as well as the ultimate bearing capacity, and compared with plastic hinge theory, elastic sheet theory and analysis.