题名: |
Development of Simulation Software for Modelling Pavement Response at Mn/ROAD; Final rept |
作者: |
Zhang, Z.; Stolarski, H. K.; Newcomb, D. E. |
关键词: |
Computerized simulation; Pavements; Dynamic response; Plastic properties; Subgrades; Pavement bases; Structural analysis; Loads(Forces); Soil mechanics; Stress analysis; Road materials; Highway design |
摘要: |
This report presents the development of simulation software for modeling dynamically loaded pavement response. The analysis is carried out by employing the finite element method and by integrating the resulting discrete equations of motion through the central difference method. The lower pavement layers (base, subbase, and subgrade) are assumed to be elasto-plastic and are described by using the flow theory of plasticity. The mapped infinite elements are used instead of viscous boundaries to mitigate the wave reflection from the boundaries of the model. The predicted pavement responses are compared with the experimental results obtained by a Falling-Weight Deflectometer (FWD). Dowel bar load transfer mechanism is also analyzed. |
总页数: |
135p |
报告类型: |
科技报告 |