TTICRCP – A Mechanistic Model for the Prediction of Stresses, Strains, and Displacements in Continuously Reinforced Concrete Pavements

Details

• Creators:
  Palmer, Richard P. ; Olsen, Mikael P. J. ; Lytton, Robert L.
• Corporate Creators:
  Texas Transportation Institute. Texas A&M University
• Corporate Contributors:
  Texas State Department of Highways and Public Transportation ; United States. Department of Transportation. Federal Highway Administration
• Subject/TRT Terms:
  Bond Strength (Materials) Bond Stress-Slip Relationship Continuously Reinforced Concrete Pavements Differential Equations Energy Balance Equivalent Load Method Load Factor Shrinkage Strain (Mechanics) Stresses TTICRCP

  More +
• Publication/ Report Number:
  FHWA/TX-88/371-2F
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Texas
• Edition:
  Final Report: November 1985 - August 1987
• Corporate Publisher:
  Texas Transportation Institute. Texas A&M University
• Abstract:
  The accuracy of the CRCP-l, CRCP-2, and CRCP-3 models developed by the Center for Transportation Research at the University of Texas, Austin, for predicting the behavior of continuously reinforced concrete pavement (CRCP) is limited, in part, by many of the simplifying assumptions that were made for their development. Modeling the bond stress distribution between the concrete and the steel reinforcing as an average stress acting over a development length is, in particular, a gross simplification of actual behavior. The TTICRCP model was developed by assuming that the bond stress relationship between the concrete and the steel could be approximated accurately by a bond stress-slip function. The function was used for the generation of a system of linear, 2nd order differential equations that describe the CRCP slab. The correct solution to the system of differential equations yields the displacement functions of the concrete and the steel, which, in turn, allow the stress distributions for both the steel and the concrete to be found. Time dependency was incorporated into the model to allow for multi-day analysis of a CRCP system. Material properties, drying shrinkage, environmental conditions, and wheel loads were all assumed to be time dependent.
• Format:
  PDF
• Funding:
  HPR 2-8-85-371
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:82671f77ffcc9b2e295981485aa17d11433e18037015605c4bef5eeffddd1fc4e4073e87b5165badb6d1bc9f268ebf8ed805d9bf6a6c9e97a518e7c34a588f0d
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/85179/dot_85179_DS1.pdf
• File Type:
  [PDF - 6.63 MB ]