Truck Damage Comparison Based on Jointed Plain Concrete Pavement Performance

This paper estimates and compares the damage done by trucks of 35 different configurations on a typical structure of a Jointed Plain Concrete Pavement. The configurations were proposed by New York Department of Transportation, the sponsor of this study. In general the paper analyses different loading scenarios for heavy vehicles that are expected to use the New York state highways. In this paper, the different combinations of loading scenarios and axle configurations are called truck cases. The generalized 3D Finite element program, Abaqus, was used to calculate the maximum tensile stresses at the bottom of concrete slab caused by the truck passes. The computed tensile stresses were used in Darter’s fatigue model to calculate for each truck case the allowable number of axles that causes fatigue failure of the concrete pavement. The analysis results indicate that the most critical damages to the rigid pavement were caused by truck cases with high and unevenly load distribution and less spacing between axles of a group. Another analysis tool which was used in this research to compare trucks base on the performance of rigid pavement was the Mechanistic Empirical Design Guide Software. The software was used to calculate bottom up transverse cracks on the pavement caused by 10 out of the 35 truck cases. Other truck cases could not be analyzed by the software because the truck axles groups were unevenly loaded and/or unequally spaced. For the same truck cases, the mechanistic-empirical pavement design guide (MEPDG) analysis indicated higher magnitude of truck damage but with the same trend as the finite element (FE) analysis.

Language

  • English

Media Info

  • Media Type: DVD
  • Features: Figures; References; Tables;
  • Pagination: 17p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01152414
  • Record Type: Publication
  • Report/Paper Numbers: 10-3457
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 11:44AM