有夹层的双层刚性道面的有限元分析方法

A Finite Element Analysis for Twin-layered Rigid Pavement with Sandwich

本文根据夹层与道面板的界面为光滑接触的假定,推导了夹层元的“单元刚度矩阵”,建立求解有夹层的双层刚性道面板的结构刚度方程,从而给出了这种道面的完整的有限元分析方法。文中提供了一些计算结果,讨论了这种方法的收敛性、夹层参数对上下板内力的影响,以及若干理论和实际问题。

Based on the supposition that the interface between sandwich and the pavement slab is smooth, the 'element stiffness matrix' for sandwich is derived, and the structural stiffness equations for analysis of twin-layered rigid pavement slabs with sandwich are established, thus a complete FEM for this type of pavement is presented. Calculation results are also presented. Theoretical and practical problems such as the convergence of this method, the influence of sandwich parameters on the stress of slabs and some other problems on the basis of these results are discussed.