道路结构层合并对计算结果的影响

Abaqus可用来模拟分析道路工程中的很多问题。当道路实际结构层层数很多时，可在计算中对材料特性相似的结构层进行合并，这不仅可简化建模过程，且可降低计算机计算成本。通过对道路实际结构层模型和合并结构层模型的计算结果进行对比分析，确定结构层合并对计算结果的影响。结果表明: 在计算路表弯沉时可以用合并层模型替代实际层模型，计算应力、应变时则不可。

Influence of Combination of Road Structural Layers on Calculation Result

Abaqus can be used to simulate many issues in road engineering. In case of a large number of actual structural layers, those with similar material properties could be combined in the calculation, which not only simplifies the modeling but also reduces the cost of computer calculation. Through the relative analysis on the calculation results of actual layer and combined layer models, the influence of combination of structural layers on the calculation results is confirmed. The result shows that in calculation of road surface deflection, combined layer model could replace actual layer model, but in the calculation of stress and strain not.