Replacement Prioritization of Precast Deck Panel Bridges

Precast deck panel bridges have a long history of poor performance in Florida. A spate of recent localized failures on major highways, led to a decision by the Florida Department of Transportation (FDOT) to replace selected bridges on I-75 in Districts 1 and 7 by full-depth, cast-in-place concrete slab over 10 years. The goal of this study was to develop a strategy that could assist in prioritizing this replacement. A progressive degradation model was developed from a careful analysis of localized failures, on-site forensic investigation of deck panel bridges during their replacement, review of historical inspection data and finite element analysis. This model was subsequently integrated in PANEL - custom software written for this project. A special database containing inspection records for all precast deck panel bridges in Districts 1 and 7 extending over 20 years in electronic form was created for PANEL. This allowed PANEL to automate the prioritization process. PANEL permits users to specify weighting factors for parameters such as safety, importance and cost. This information is then used to create lists that rank the order in which the replacement is to be carried out. Weighting factors used in this report for ranking were calibrated using the latest inspection data. As the database can be easily updated to include new inspection information and photographs, PANEL provides a dynamic resource that can be used by FDOT to review and revise its prioritization strategy in the future to take into consideration the latest available information.

• Record URL:
  • https://fdotwww.blob.core.windows.net/sitefinity/docs/default-source/research/reports/fdot-bc353-48-rpt.pdf
• 
• Summary URL:
  • https://fdotwww.blob.core.windows.net/sitefinity/docs/default-source/research/reports/fdot-bc353-48.pdf
• Corporate Authors:

  University of South Florida, Tampa

  Department of Civil and Environmental Engineering, 4202 East Fowler Avenue
  Tampa, FL  United States  33620

  Florida Department of Transportation

  605 Suwannee Street
  Tallahassee, FL  United States  32399-0450

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Sen, Rajan
  • Mullins, Gray
  • Ayoub, Ashraf
  • Pai, Niranjan
  • Gualtero, Ivan
  • Deshmukh, Ganesh
• Publication Date: 2005-3

Language

• English

Media Info

• Media Type: Print
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 303p

Subject/Index Terms

• TRT Terms: Bridge decks; Bridges; Cast in place concrete; Finite element method; Mathematical models; Precast concrete; Software; Strategic planning; Weighting
• Uncontrolled Terms: Bridge replacement; Inspection records
• Geographic Terms: Florida
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01002024
• Record Type: Publication
• Contract Numbers: BC353 RPWO 48
• Files: TRIS, USDOT, STATEDOT
• Created Date: Jul 15 2005 3:58PM