NDE of Fire-Damaged Prestressed Joists

Non-Destructive Evaluation and Load Rating of Prestressed Double-Tee Joists at the Harbor Baptist Church
Sponsor: Structural Innovations Engineering and Consulting, P.C.
(co-PI: Dr. Brett Tempest)

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In order to assess potential structural vulnerabilities resulting from fire exposure to prestressed double-tee roof joists, the research team will employ a suite of non-destructive tests.  Existing double-tee joists in the front of the church where fire damage was nominal provide a baseline for comparison to the joists in the region of interest.  The non-destructive tests include:

  • Impact-Echo Testing
  • Input-Output Experimental Modal Analysis
  • Windsor Probe
  • Experimental Load Rating
 
                                Baseline Joists                                                Fire Damaged Prestressed Double Tees

Related Publications

Whelan, M.J., Tempest, B.T., and Scott, D.B. (201x) “Post Fire Nondestructive Evaluation of a Prestressed Concrete Double-Tee Joist Roof,” Journal of Performance of Constructed Facilities (Accepted for Publication)

Whelan, M.J., Tempest, B.T., and Scott, D.B. (201x) “Influence of Fire Damage on the Modal Parameters of a Prestressed Concrete Double-Tee Joist Roof,” Structural Control and Health Monitoring (Accepted for Publication)

Tempest, B. and Whelan, M.J. (2012) “Damage Evaluation of Prestressed Double-Tees Exposed to Accidental Building Fire,” 2012 PCI Convention and National Bridge Conference, October 1.