Spread prestressed concrete slab beam bridges.

Details

• Creators:
  Hueste, Mary Beth D. ; Mander, John B. ; Terzioglu, Tevfik ; Jiang, Dongqi ; Petersen-Gauthier, Joel
• Corporate Creators:
  Texas A&M Transportation Institute
• Corporate Contributors:
  Texas. Dept. of Transportation. Research and Technology Implementation Office ; United States. Federal Highway Administration
• Subject/TRT Terms:
  • Prestressed concrete bridges
  • Precast concrete
  • Bridge design
  • Bridge decks
  • Cast in place concrete
  • Field tests
  • Laboratory tests
  • Load factor
• Publication/ Report Number:
  FHWA/TX-15/0-6722-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  Texas
• Corporate Publisher:
  Texas A&M Transportation Institute
• Abstract:
  TxDOT uses prestressed slab beam bridges for short-span bridges ranging from approximately 30–50 ft in ; length. These bridges have precast, pretensioned slab beams placed immediately adjacent to one another ; with a cast-in-place slab made composite with the beams. While these bridges are used extensively, they ; are more expensive than traditional prestressed I-beam structures on a per-square-foot basis. The objective ; of this project was to investigate the use of slab beams that are spread apart with precast panel stay-in-place forms between beams and a cast-in-place concrete deck, and to develop appropriate design guidelines ; for this alternate spread slab beam bridge system. ; The project objectives were met through a series of tasks. The research team reviewed the relevant ; literature and the current state of the practice. Preliminary designs were developed to assess the potential of ; a spread slab beam bridge system. A full-scale spread slab beam bridge was constructed at the Texas A&M ; University Riverside Campus and tested to assess constructability, in-service performance, and behavior. ; Field testing was conducted for the Riverside Bridge and a US 69 on-system bridge to evaluate load ; distribution behavior and to provide data to guide analytical modeling of this bridge system. Additional ; analytical models were developed to investigate an array of possible bridge geometries and load sharing ; behavior. Based on these models, recommendations were developed for load distribution factor ; relationships for the design of spread slab beam bridges.
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• Format:
  PDF
• Alternate URL:
  http://ntl.bts.gov/lib/55000/55000/55048/0-6722-1-CD.pdf
• Funding:
  Project 0-6722
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/28861/dot_28861_DS1.pdf
• File Type:
  [PDF - 29.73 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha256:ad7b63ae9a4d2f86503265d8ad315ec21a0e339f247575311249158fcd9affdd