DESIGN PROCEDURE FOR DOWEL LOAD-TRANSFER SYSTEMS FOR FULL-DEPTH REPAIR JOINTS

There is a critical need to develop more cost-effective and reliable design and construction procedures for the joint load-transfer systems for full-depth repairs of portland cement concrete pavements. A study conducted at the University of Illinois and funded by the FHWA was directed at the development of such a design procedure. This research work featured a laboratory study of the performance of dowel bars anchored in concrete slabs. This study produced models that predict the development of dowel bar looseness as a function of design and loading parameters. The research work also included a study of the long-term faulting and loss of load transfer across full-depth repair joints in experimental field installations in central Illinois. This study resulted in the development of a faulting model based on loss of load-transfer efficiency. These models were linked using a third model (relating dowel looseness and load-transfer efficiency) developed from data collected by other researchers conducting related studies. The three models were combined into a graphical procedure for easy use. Adjustments to the models for varying design reliability and site-specific field conditions are also discussed.

Media Info

  • Features: Figures; Photos; References;
  • Pagination: p. 50-64
  • Monograph Title: Pavement management and rehabilitation 1990
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00603075
  • Record Type: Publication
  • ISBN: 0309050510
  • Files: TRIS, TRB, ATRI
  • Created Date: Jan 31 1991 12:00AM