Jointed Plain Concrete Pavement Model Evaluation

The mechanistic–empirical pavement design guide developed under NCHRP Project 1-37A employs mechanistic models to calculate pavement primary responses for predicting pavement performance. Therefore, it is imperative that the primary response models be evaluated in relation to their prediction accuracy. In this study, both theoretical accuracy verification and comparison with field measurement were employed to judge the prediction quality of three primary response models commonly used in concrete pavement analysis, namely, ISLAB2000, JSLAB2004, and EverFE2.22. The theoretical evaluation involved simulations, sensitivity trials, and comparisons of calculated slab stress, strain, and deflection responses of a number of hypothetical pavement systems. The field evaluation involved direct comparison of model-simulated responses against those measured from the SHRP Ohio test section. It was found that the agreement between analytical solutions and those obtained by the three analysis programs was affected by the load location, location of the desired response, and consideration of slab self-weight in the analysis. The study also showed that the three analysis models were fairly able to simulate field-observed responses by using both the multiple-step and one-step approaches. For the pavement section analyzed in this study, the average percentage relative deviation of peak predicted responses from corresponding measurements (deflection and strain) was estimated as 16.2%, 17.6%, and 22.9% for ISLAB2000, JSLAB2004, and EverFE2.22, respectively. Because the evaluation of the three programs was conducted against one pavement structure, additional verification is required through the use of pavement structures with different materials and layer thicknesses. Besides accuracy, the user’s selection of a specific analysis program will depend on run time, ease of use, cost, and ability to incorporate the base and subbase layers of pavement structures.

• Record URL:
  • https://doi.org/10.3141/1947-05
• 
• Summary URL:
  • http://scholar.google.com/scholar_lookup?title=Jointed+Plain+Concrete+Pavement+Model+Evaluation&author=W.+Wang&author=I.+Basheer&author=K.+Petros&publication_year=2006
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309099552
• Authors:
  • Wang, Weijun
  • Basheer, Imad
  • Petros, Katherine
• Publication Date: 2006

Language

• English

Media Info

• Media Type: Print
• Features: Figures; Photos; References; Tables;
• Pagination: pp 49-58
• Monograph Title: Rigid and Flexible Pavement Design 2006
• Serial:
  • Transportation Research Record: Journal of the Transportation Research Board
  • Issue Number: 1947
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accuracy; Alternatives analysis; Concrete pavements; Deflection; Mathematical models; Mechanical strain; Pavement performance; Sensitivity analysis; Simulation; Stresses; Test sections
• Identifier Terms: EverFE2.22 (Computer program); ISLAB2000 (Computer program); JSLAB (Computer program); Mechanistic-Empirical Pavement Design Guide; Strategic Highway Research Program
• Geographic Terms: Ohio
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01024667
• Record Type: Publication
• ISBN: 0309099552
• Files: TRIS, TRB, ATRI
• Created Date: May 25 2006 7:57AM