Structural monitoring of Rigolets Pass Bridge.

Details

• Creators:
  Bruce, Robert N. ; Roller, John J. ; Russell, Henry G.
• Corporate Creators:
  Tulane University
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Prestressed concrete bridges
  • High performance concrete
  • Girders
  • Concrete bridges--Louisiana--Orleans Parish--Design and construction
  • Concrete bridges--Louisiana--Saint Tammany Parish--Design and construction
  • Girders--Testing
  • High strength concrete--Louisiana--Orleans Parish--Testing
  • High strength concrete--Louisiana--Saint Tammany Parish--Testing
• Publication/ Report Number:
  FHWA/LA.08/437
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Final report; Apr. 1, 2005-Apr. 30, 2009.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  The overall objective of this research project was to evaluate the structural behavior of prestressed highperformance ; concrete (HPC) long-span bulb-tee girders utilized in Louisiana bridge construction. To ; accomplish this objective, one span of the Rigolets Pass Bridge was instrumented and monitored to obtain ; measured strain and deflection data for a period of one year after completion of construction. Four 131-ft. ; (40-m) long, BT-78 girders fabricated using HPC were instrumented to measure concrete strains and ; deflections at midspan. During fabrication of the four instrumented girders, representative samples of the ; prestressing strand and HPC were obtained and used for material property studies. After fabrication, the ; four instrumented girders were used to construct Span 43 of the Rigolets Pass Bridge. ; After erecting the instrumented girders at the bridge site, an HPC deck slab was added. During the deck ; slab construction for Span 43, instrumentation was added to measure concrete strains at midspan. Samples ; of the deck slab concrete were also obtained and used for material property studies. ; Throughout the bridge construction process, instrumentation readings were taken and recorded at selected ; time- or event-based intervals. After completion of the Rigolets Pass Bridge construction, the strain gauge ; instrumentation installed in the HPC girders and deck slab of Span 43 were connected to an automated onsite ; data acquisition system with remote access capabilities. The on-site data acquisition system was used ; to record concrete temperature and strain data at selected time increments for a period of one year after ; completion of construction. Manual measurements of midspan deflections were taken for Span 43 at the ; beginning, middle, and end of the one-year bridge monitoring period. ; This final report documents results from both instrumentation monitoring and material property studies ; performed for Span 43 of the Rigolets Pass Bridge. The results obtained from this research provide detailed ; information related to the long-term behavior of a long-span structure fabricated using HPC. Findings and ; conclusions drawn from this research can be used by the Louisiana Department of Transportation and ; Development (LADOTD) to develop specifications and designs for future HPC bridge structures.
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• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18053/dot_18053_DS1.pdf
• File Type:
  [PDF - 947.63 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:45469c81d0479673d8143df41689ea0d796f0d2be22939dc529852f0b71e3db8