Schanack Frank, Ramos Óscar Ramón, Reyes Juan Patricio, Pantaleón Marcos J
Institute of Civil Engineering, Universidad Austral de Chile, General Lagos, 5111187 Valdivia, Chile.
Department of Structural and Mechanical Engineering, University of Cantabria, Avenida Los Castros s/n, 39005 Santander, Spain.
ScientificWorldJournal. 2014 Jan 22;2014:397515. doi: 10.1155/2014/397515. eCollection 2014.
The track-structure interaction effects are usually analysed with conventional FEM programs, where it is difficult to implement the complex track-structure connection behaviour, which is nonlinear, elastic-plastic and depends on the vertical load. The authors developed an alternative analysis method, which they call the relative displacement method. It is based on the calculation of deformation states in single DOF element models that satisfy the boundary conditions. For its solution, an iterative optimisation algorithm is used. This method can be implemented in any programming language or analysis software. A comparison with ABAQUS calculations shows a very good result correlation and compliance with the standard's specifications.
轨道-结构相互作用效应通常使用传统的有限元程序进行分析，在这些程序中，很难实现复杂的轨道-结构连接行为，这种行为是非线性、弹塑性的，并且取决于垂直荷载。作者开发了一种替代分析方法，他们称之为相对位移法。该方法基于对满足边界条件的单自由度单元模型中的变形状态进行计算。为求解该模型，使用了一种迭代优化算法。此方法可在任何编程语言或分析软件中实现。与ABAQUS计算结果的比较显示出非常好的结果相关性，并符合标准规范。
