TRANSVERSE DESIGN OF ADJACENT PRECAST PRESTRESSED CONCRETE BOX GIRDER BRIDGES

American and Japanese design and detailing practices of prestressed concrete box girder bridges are compared. A new precast, prestressed box girder design suitable for U.S. practice is proposed. The design is based on requiring the deck to act as a rigid assembly of longitudinal and transverse members. This is consistent with Japanese practice and fulfills the intent of several state DOT initiatives. The proposal advocates quarter-point diaphragms with relatively large amounts of transverse post-tensioning. A design chart and recommended details are provided for bridges up to 80 ft (24 m) long. The amount of post-tensioning was found to be unaffected by bridge span length. A fully worked numerical design example is included to demonstrate the proposed design procedure.

Language

  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: p. 96-113
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00726748
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 15 1996 12:00AM