Effects of Tire Inflation Pressure and Load on Predicted Pavement Strains
Effects of Tire Inflation Pressure and Load on Predicted Pavement Strains
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DOI：
10.3846/1822-427x.2008.3.181-186
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发表时间：
2008-12
影响因子：
1.1
通讯作者：
Dae-Wook Park;A. Martin;Jin-Hoon Jeong
中科院分区：
文献类型：
--
作者：
Dae-Wook Park;A. Martin;Jin-Hoon Jeong
本文讨论了轮胎载荷和充气压力对预测路面响应的影响。目的是研究增加轮胎载荷和轮胎充气压力对不同路面层和材料性能下预测的横向应变和垂直应变的影响。从实测轮胎接触应力数据库中插值出6种不同轮胎的三维轮胎接触应力分析。所测轮胎接触应力的形状取决于轮胎的加载条件。结果表明，随着轮胎充气压力的增大，沥青混凝土层附近的预测值有所不同。在轮胎荷载增加的情况下，基层和路基的预测值不同。通过统计分析，沥青层底部横向应变和路基顶部竖向应变的预测结果受不同的交流厚度、交流模量和路基模量的影响。
In this paper, effects of tire loads and inflation pressures on predicted pavement responses are presented. The aim was to study the effect of increased tire loads and tire inflation pressures on predicted transverse strains and vertical strains at different pavement layers and material properties. A 3-D tire contact stress analysis for 6 different tires was interpolated from the database of the measured tire contact stresses. The shape of measured tire contact stresses is dependent on tire loading conditions. Results show that predicted values were different near the asphalt concrete (AC) layer by increased tire inflation pressure. Under increased tire load, predicted values were different at the base and subgrade layer. From statistical analysis, predicted transverse strains at the bottom of asphalt layer and vertical strains at the top of subgrade are affected by different AC thicknesses, AC moduli, and subgrade moduli.