CLT and AE Methods of In-Situ Load Testing: Comparison and Development of Evaluation Criteria: In-Situ Evaluation of Post-Tensioned Parking Garage, Kansas City, Missouri

The objective of the proposed research project is to compare the results of two recently introduced nondestructive load test methods to the existing 24-hour load test method described in Chapter 20 of ACI 318-05. The two new methods of nondestructive evaluation are the Cyclic Load Test (CLT) and Acoustic Emission (AE) methods. Each method offers advantages over the 24-hour load test method and each is particularly well suited to different aspects of structural evaluation. The focus of the research effort is an existing reinforced concrete (RC) building in Kansas City, Missouri. This building provides an ideal real world test bed for comparison between the three different methods of in-situ evaluation (24-hour, CLT, and AE methods). Preliminary results from this experimental campaign will form the basis for future research related to the appropriateness of each method and the understanding of each method on a more fundamental basis. The research proposed will provide the initial data that is necessary for the successful pursuit of larger funds from international agencies. The proposed seed monies will be used as the basis for follow-up grants that will be written to the National Science Foundation, the European Community, the Engineering and Physical Sciences Research Council (EPSRC) and other agencies to test full-scale structures in the laboratory and in the field in order to validate the changes proposed by ACI 437: Strength Evaluation of Existing Concrete Buildings and to provide sufficient engineering evidence that is currently missing.


  • English

Media Info

  • Media Type: Web
  • Edition: Final Report
  • Features: Photos; References; Tables;
  • Pagination: 46p

Subject/Index Terms

Filing Info

  • Accession Number: 01094987
  • Record Type: Publication
  • Report/Paper Numbers: UTC R167, 00013027
  • Contract Numbers: DTRS98-G-0021
  • Files: UTC, NTL, TRIS, USDOT
  • Created Date: Apr 24 2008 1:20PM