摘要
通过阐述有限元的动力方程建立理论依据,利用ANSYS建立路面结构和移动荷载的有限元模型,并计算倒装结构在移动荷载下的力学响应。结果表明,在移动荷载下的路面结构响应较静载小,车速的变化对其响应的影响较大,大体呈线形分布关系。在现有的路面设计理论和路面施工的基础上提供了一定的理论参考。
This paper establishes theoretical foundation through dynamic equation of finite element, sets up finite element model of pavement structure and moving load with ANSYS and calculates mechanical response of the inverted structure under moving load. The result indicates that the mechanical response of pavement structure under moving load is less than that under static load and the change of vehicle speed exerts a greater influence on mechanical response, basically under linear relation. This paper provides certain theoretical reference on the basis of the current pavement design theory and pavement construction.
出处
《路基工程》
2010年第1期19-21,共3页
Subgrade Engineering
关键词
倒装路面结构
三维动力有限元
移动荷载
ANSYS
inverted pavement structure
three-dimensional dynamic finite element
moving load
ANSYS
