Effects of pavement roughness on rigid pavement stress

C. M. Kuo, C. R. Fu, K. Y. Chen

研究成果: Article同行評審

10 引文 斯高帕斯(Scopus)


Pavement roughness causes pavement stress fluctuation along the road. However, the dynamic effects were not taken into account in most pavement design and studies. To investigate the influences of roadway roughness on pavement stresses, this study developed a coupled system consisting of a quarter-car model and an equivalent lump pavement model. The coupled system also incorporated measured road profiles. By means of transfer function in frequency domain, the deflections and stresses of pavements were computed in seconds. The results were validated with Westergaard's solutions satisfactorily. It was found that the critical roughness, which might cause extreme responses, is related to the vehicle speed and suspension of vehicles. The maximum tension at the bottom of pavements also depends on the size of bump. In addition, the study demonstrates the correlation between roughness index, IRI, and ISO roughness classifications. It was also found that disturbance due to model boundary affects simulation results significantly.

頁(從 - 到)1-8
期刊Journal of Mechanics
出版狀態Published - 2011 三月

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學
  • 機械工業
  • 應用數學


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