六安-叶集高速公路多层路面结构体系受力性能分析  

Stress analysis of multi-course pavement structural system of Lu'an-Yeji Expressway

作　　者：王华[1] 过年生 

机构地区：[1]安徽省公路勘测设计院,安徽合肥230041

出　　处：《合肥工业大学学报（自然科学版）》2004年第8期949-951,共3页Journal of Hefei University of Technology：Natural Science

摘　　要：我国柔性路面设计规范在计算多层路面结构体系时,将多层路面结构体系换算成3层路面结构体系,这种近似导致在分析路面结构受力时产生一定的误差。文章对六安-叶集高速公路多层路面结构体系进行了有限元建模,在模型上直接加载车轮荷载,试图减少由于规范上的近似所带来的误差。结果表明:多层路面体系内应力均小于容许应力,而且精度有所提高。According to the State design specification of the flexible pavement,in the calculation of the multi-course pavement structural system,the multi-course system can be regarded as a three-course pavement structural system,which may result in a certain error in the analysis of the stresses on the pavement structure. In order to reduce the error caused by the approximation according to the specification,the multi-course pavement structural system of Lu'an-Yeji Expressway is studied by using the finite element method,and the wheel loads are considered in the model. The calculation results show that all the stresses in the multi-course pavement system are smaller than the allowable stresses and the calculation precision is improved to some extent.

关 键 词：多层路面体系 有限元 应力 

分 类 号：U416.221[交通运输工程—道路与铁道工程]