Evaluation of continuity detail for precast prestressed girders : tech summary.

Details

• Creators:
  Okeil, Ayman M.
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  Louisiana. Dept. of Transportation and Development ; Louisiana State University (Baton Rouge, La.)
• Subject/TRT Terms:
  • Continuous girder bridges
  • Girder bridges
  • Prestressed concrete bridges
  • Concrete bridges
  • Creep
  • Deformation
  • Environmental impacts
  • Bridge design
  • Structural design
  • Bridge construction Continuous bridges--Louisiana
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• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Edition:
  Tech summary.
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  Building multi-simple span bridges using precast prestressed concrete girders is an easy construction. However, the existence of ; expansion joints often leads to a host of problems in their vicinity due to drainage leaks. Furthermore, debris accumulation aff ects ; the performance of expansion joints. Building continuous bridges reduces maintenance costs and adds redundancy to the structural ; system. Therefore, the development of connection details between precast elements has been the subject of research for an extended ; period of time. A new continuity detail is adopted in the John James Audubon Bridge that diff ers from the current standard detail ; in Louisiana. The detail is based on the recommendation of the National Cooperative Highway Research Program (NCHRP) Project ; 12-53 (Report 519). The performance of the new detail was monitored using a 96-channel monitoring system that has embedded and ; surface-mounted sensors to measure strains, temperatures, rotations, and gap openings in critical locations in the monitored segment. ; Data from about 24 months of monitoring were collected, processed, and analyzed. Analyses based on Project 12-53 (NCHRP Report ; 519) models and fi nite element models were also conducted to further understand the behavior of the new detail. Finally, static and ; dynamic load tests were carried out on the monitored segment.
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• Format:
  PDF
• Funding:
  SIO No. 30000150;LTRC Project No. 08-1ST
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/23072/dot_23072_DS1.pdf
• File Type:
  [PDF - 128.94 KB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:ad41a3071a51e95659277da267191aff5ff853333d3a25a2a10786f09325ec80ab42f1390ff0379e1a00a2d771f359630058ba17ee06b7e9291ad7812f0083a6