Design Specifications and Commentary for Horizontally Curved Concrete Box-Girder Highway Bridges

Many concrete box-girder highway bridges are constructed on horizontally curved alignments. In some instances, problems such as bearing uplift, cracked diaphragms and piers, and lateral tendon breakout have occurred. The AASHTO Bridge Specifications do not adequately address these and other issues either in the provisions or commentary. AASHTO has recently incorporated provisions for the design of horizontally curved steel bridges into the LRFD Bridge Design Specifications. These specifications include specific guidance on when horizontal curvature effects must be considered. Bridge owners and designers need specifications and commentary, as well as examples that provide design guidance for horizontally curved concrete box-girder highway bridges. The objective of this project is to develop specifications, commentary, and examples for the design of horizontally curved concrete box-girder highway bridges. Specifications and commentary shall be in a load and resistance factor design format suitable for recommendation to AASHTO for adoption.

• Record URL:
  http://www.trb.org/TRBNet/ProjectDisplay.asp?ProjectID=360

Language

• English

Project

• Status: Completed
• Funding: $350000.00
• Contract Numbers:

  Project 12-71

• Sponsor Organizations:

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590

  American Association of State Highway and Transportation Officials (AASHTO)

  444 North Capitol Street, NW
  Washington, DC  United States  20001

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001
• Project Managers:

  Beal, David

• Performing Organizations:

  Nutt, Redfield & Valentine

  ,    
• Principal Investigators:

  Nutt, Richard

• Start Date: 20050718
• Expected Completion Date: 0
• Actual Completion Date: 20071231
• Source Data: RiP Project 10570

Subject/Index Terms

• TRT Terms: Bridge design; Concrete bridges; Curved bridges; Girder bridges; Horizontal supports; Research projects; Specifications
• Identifier Terms: American Association of State Highway and Transportation Officials; National Cooperative Highway Research Program
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 01460725
• Record Type: Research project
• Source Agency: National Cooperative Highway Research Program
• Contract Numbers: Project 12-71
• Files: RIP, USDOT
• Created Date: Jan 3 2013 1:31PM