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:
  Concrete Bridges--Louisiana--Orleans Parish--Design And Construction Concrete Bridges--Louisiana--Saint Tammany Parish--Design And Construction Girders Girders--Testing High Performance Concrete High Strength Concrete--Louisiana--Orleans Parish--Testing High Strength Concrete--Louisiana--Saint Tammany Parish--Testing Prestressed Concrete Bridges
• 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.
  
  
• Format:
  PDF
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:45469c81d0479673d8143df41689ea0d796f0d2be22939dc529852f0b71e3db8
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18053/dot_18053_DS1.pdf
• File Type:
  [PDF - 947.63 KB ]