Nondestructive pavement evaluation using finite element analysis based soft computing models.

Details

• Creators:
  Tutumluer, Erol ; Pekcan, Onur ; Ghaboussi, Jamshid
• Corporate Creators:
  NEXTRANS Center (U.S.) ; University of Illinois at Urbana-Champaign. Department of Civil and Environmental Engineering
• Corporate Contributors:
  United States. Department of Transportation. Research and Innovative Technology Administration
• Subject/TRT Terms:
  • Pavements
  • Testing
  • Finite element method Pavements--Testing--Mathematical models
  • Pavements--Performance--Mathematical models
  • Finite element method
• Publication/ Report Number:
  010IY01
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Corporate Publisher:
  NEXTRANS Center (U.S.)
• Abstract:
  Evaluating structural condition of existing, in-service pavements constitutes annually a major part of the ; maintenance and rehabilitation activities undertaken by State Highway Agencies (SHAs). Accurate ; estimation of pavement geometry and layer material properties through the use of proper ; nondestructive testing and sensor technologies is very important for evaluating pavement’s structural ; condition, its remaining life for maintenance and rehabilitation purposes, and for properly incorporating ; life cycle cost considerations into an up to date, improved Pavement Management System. For this ; purpose, pavement deflection basins gathered from the nondestructive Falling Weight Deflectometer ; (FWD) test data are commonly used to evaluate pavement structural conditions. Development of an ; innovative methodology, called SOFTSYS, Soft Computing Based Pavement and Geomaterial System ; Analyzer, is proposed here as an original way of interpreting the results of FWD tests for full-depth and ; conventional flexible pavements with the purpose of determining pavement layer properties as well as ; the layer thicknesses from FWD data without the need for pavement coring. Since the layer thickness ; information plays a crucial role in FWD data back calculation and remaining pavement life estimation, ; the outstanding contribution of SOFTSYS will be in the reliable estimation of pavement layer thicknesses ; in addition to their stiffness properties. Using only FWD test results (i.e. deflections) as inputs, SOFTSYS ; will calculate all the necessary properties for pavement evaluation.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/17349/dot_17349_DS1.pdf
• File Type:
  [PDF - 2.25 MB]
• Collection(s):
  University Transportation Centers ; US Transportation Collection
• Main Document Checksum:
  urn:sha-512:125de5741f2041b1f20d285b7d61472778a44ace551f81acf3e83369fc51c34645ad212baee7157ce6ecef3b692dcd1ef72746d454c0985b13902b3a0b6ccafc