Long-term monitoring of the HPC Charenton Canal Bridge.

Details

• Alternative Title:
  Long-term monitoring of the high performance concrete Charenton Canal Bridge
• Creators:
  Alaywan, Walid R.
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Concrete bridges
  • Prestressed concrete bridges
  • High performance concrete
  • Jointless bridges
  • Piles (Supports)
  • Girders
  • Pile caps
  • Walls
  • Slabs
  • Bridge decks
  More +
• Publication/ Report Number:
  FHWA/LA.11/473
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Final report; Mar. 2006-Aug. 2010.
• Corporate Publisher:
  Louisiana. Dept. of Transportation and Development
• Abstract:
  The report contains long-term monitoring data collection and analysis of the first fully high ; performance concrete (HPC) bridge in Louisiana, the Charenton Canal Bridge. The design of this ; bridge started in 1997, and it was built and opened to traffic in 1999. High-strength concrete was used ; in the precast prestressed, concrete piles and girders. High performance cast-in-place concrete was ; used in the abutment, wing walls, pile caps, approach slabs, barriers slabs, and barrier rails. ; After the bridge was constructed, this study was initiated. The objective was to continue the long-term ; data collection and analysis for the instrumented bridge. The long-term monitoring consisted of ; collecting data from embedded strain gauges in the deck and four girders of Span 3 of the five-span ; structure. Data collected were for (1) deck strains at the mid span of Span 3; (2) prestress losses at the ; mid span of Girders 3A, 3B, 3C, and 3D; and (3) camber and deflection of Girders 3A, 3B, 3C, and 3D. ; It was observed that (1) the maximum absolute strain in the deck was 77 millionths, (2) the maximum ; prestress loss in the girders was slightly less than 50,000 psi with time-dependent losses being at about ; 2 percent of the total losses, and (3) measured camber and deflection of the instrumented girders was in ; the range of 1.5 to 1.8 in. ; In conclusion, values reported for strains in the deck, prestress losses in the girders and ; camber/deflection of the instrumented girders seem to fit very well within acceptable limits.
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• Format:
  PDF
• Funding:
  LTRC Project No. 03-7ST ; State Project No. 30000178
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23073/dot_23073_DS1.pdf
• File Type:
  [PDF - 1.03 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:55260c79135efa05a58904e30cc384755d5636132de062cc44c45babfc91dd44fa878483b82e1b890b4a3cd099365007c7258d1ae4fe2a7a24b8249fb400e0ce