NDT Methods Applicable to Health Monitoring of ABC Closure Joints

In Accelerated Bridge Construction (ABC), prefabricated bridge deck elements are connected using “Closure Joints.” Because of cast-in-place nature of closure joints that are expected to go into service and field observations, there have been some concerns about their long-term durability. This has necessitated the need for health monitoring of ABC closure joints using Non-Destructive Testing (NDT) methods. Closure joints contain unique features that sets them apart from conventional deck panels. They require a special treatment when it comes to selecting the appropriate NDT technique. However, a clear guideline for selection of the most applicable NDT method for various types of closure joints has not been developed yet. To address this, a research project was carried out at ABC-UTC at FIU. This report describes this investigation that includes review of all relevant NDT methods and efforts for categorizing closure joints based on features affecting the use of NDT. Since the applicability of NDT methods heavily depend on the type of expected anomaly to be detected and its root causes, all potential defects and damages were identified and investigated using a Damage Sequence Tree (DST). Consequently, damage etiology for closure joints was established using Fault Tree Analysis (FTA). Finally, a quantitative statistical analysis was performed to substantiate the selection of the most applicable NDT methods. The results presented in this report can readily be used by bridge owners and consultants as a practical guideline for selection of NDT methods for health monitoring of ABC bridges with closure joints. Future experimental work is planned for support in implementation and validation of the project conclusions.

  • Record URL:
  • Supplemental Notes:
    • This research was sponsored by the U.S. Department of Transportation, University Transportation Centers Program.
  • Corporate Authors:

    Florida International University, Miami

    Department of Civil and Environmental Engineering
    10555 West Flagler Street
    Miami, FL  United States  33174

    Accelerated Bridge Construction University Transportation Center (ABC-UTC)

    Florida International University
    10555 W. Flagler Street
    Miami, FL  United States  33174

    Office of the Assistant Secretary for Research and Technology

    University Transportation Centers Program
    Department of Transportation
    Washington, DC  United States  20590
  • Authors:
  • Publication Date: 2019-3

Language

  • English

Media Info

  • Media Type: Digital/other
  • Edition: Final Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 79p

Subject/Index Terms

Filing Info

  • Accession Number: 01719080
  • Record Type: Publication
  • Report/Paper Numbers: ABC-UTC-2013-C3-FIU04
  • Contract Numbers: DTRT13-G-UTC41
  • Files: UTC, TRIS, ATRI, USDOT
  • Created Date: Aug 30 2019 12:03PM