同济大学学报（自然科学版）2012，Vol.40Issue(2)：211-216,6.DOI:10.3969/j.issn.0253-374x.2012.02.009
沥青路面沥青层剪应力变化简化模型研究
Research on Simplified Model for Variation of Shear Stress of Asphalt Layers in Asphalt Pavements
摘要
Abstract
The model of the multi-layer asphalt pavements is built with the finite element software ANSYS according to the elastic layer system theory. Based on the model, the shear stress distribution along the depth of the asphalt layer in asphalt pavements is calculated. The shear stress distribution changing rules of the asphalt layer as thickness of surface, modulus of base or thickness of base change are found by calculating lots of structural compositions. Based on these rules a shear stress curve functional equation along the depth of the asphalt layer is obtained by modifying the probability density function of the Gamma Distribution. Software used calculating shear stress and pavement rut is programmed according to the function above and the function of pavement rut evaluation.关键词
沥青路面/剪应力/ANSYS/伽马分布/车辙预估Key words
asphalt pavement/ shear stress/ ANSYS/ Gamma distribution/ rut evaluation分类
交通工程引用本文复制引用
许严,孙立军..沥青路面沥青层剪应力变化简化模型研究[J].同济大学学报（自然科学版）,2012,40(2):211-216,6.基金项目
江西省交通运输厅科技资助项目(2009C0001) （2009C0001）
