Shear capacity of in service prestressed concrete bridge girders.

Details

• Creators:
  Barr, Paul J. ; Halling, Marv ; Petty, Dave ; Osborn, Perry
• Corporate Creators:
  Utah State University. Department of Civil and Environmental Engineering
• Corporate Contributors:
  Utah. Dept. of Transportation ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Prestressed concrete
  • Girders
  • Shear strength
  • Prestressed concrete bridges
  • Bridges
  • Girders--Testing
  • Concrete bridges--Testing
  • Concrete beams--Testing
• Publication/ Report Number:
  UT-10.09
• Resource Type:
  Tech Report
• Geographical Coverage:
  Utah
• Edition:
  Final report; July 2007-July 2009.
• Corporate Publisher:
  Utah. Department of Transportation
• Abstract:
  The design of prestressed concrete bridge girders has changed significantly over the past several ; decades. Specifically, the design procedure to calculate the shear capacity of bridge girders that ; was used forty years ago is very different than those procedures that are recommended in the ; current AASHTO LRFD Specifications. As a result, many bridge girders that were built forty ; years ago do not meet current design standards, and in some cases warrant replacement due to ; insufficient calculated shear capacity. However despite this insufficient calculated capacity, these ; bridge girders have been found to function adequately in service with minimal signs of distress. ; The objective of this research was to investigate the actual in service capacity of prestressed ; concrete girders that have been in service over an extended period of time. The actual capacity ; was compared with calculated values using the AASHTO LRFD Specifications.
• Format:
  PDF
• Funding:
  79215
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/18078/dot_18078_DS1.pdf
• File Type:
  [PDF - 13.17 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:415ebe5112091a7c2d34fb061942d6fe267790cd4a6ce07e6ecc7f31e7b4b16e