Update of the AASHTO LRFD Movable Highway Bridge Design Specifications

NOTE Agency's final report documenting the entire research efforts is available online as NCHRP WOD 314: Updating the AASHTO LRFD Movable Highway Bridge Design Specifications. It will be balloted by the AASHTO COBS in June 2022. Of more than 600,000 bridges listed in the Federal Highway Administration's (FHWA) National Bridge Inventory, close to 1,000 are movable highway bridges. The design and installation of structural, mechanical and electrical systems provide significant challenges for designers, contractors and owners in any movable highway bridge project. The primary design specifications for movable bridge design and construction is the AASHTO LRFD Movable Highway Bridge Design Specifications published in 2000 with 2002 interim revisions. The second edition of the specifications was published in 2007, and the most recent interim revisions were in 2015. Based on the input from movable highway bridge owners, designers and industry representatives, there is an immediate need to incorporate reliability-based design methodology and to reflect advances in electrical, mechanical, and traffic/marine safety systems into the current specifications. The objectives of this research were to (1) develop a reliability-based methodology to design electrical, mechanical, and traffic/marine safety elements and systems for movable highway bridges and (2) propose revisions to the AASHTO LRFD Movable Highway Bridge Design Specifications including all sections.

• Record URL:
  http://apps.trb.org/cmsfeed/TRBNetProjectDisplay.asp?ProjectID=4193

Language

• English

Project

• Status: Completed
• Funding: $450000
• Contract Numbers:

  Project 12-112

• Sponsor Organizations:

  National Cooperative Highway Research Program

  Transportation Research Board
  500 Fifth Street, NW
  Washington, DC  United States  20001

  American Association of State Highway and Transportation Officials (AASHTO)

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

  Federal Aviation Administration

  800 Independence Avenue, SW
  Washington, DC  United States  20591
• Project Managers:

  Dekelbab, Waseem

• Performing Organizations:

  Modjeski & Masters, Incorporated

  P.O. Box 2345
  Harrisburg, PA  United States  17105-
• Principal Investigators:

  Newman, Jeff

• Start Date: 20170728
• Expected Completion Date: 20210831
• Actual Completion Date: 20210831
• Source Data: RiP Project 40827

Subject/Index Terms

• TRT Terms: Bridge design; Design methods; Load and resistance factor design; Movable bridges; Specifications
• Identifier Terms: American Association of State Highway and Transportation Officials
• Subject Areas: Bridges and other structures; Design; Highways;

Filing Info

• Accession Number: 01598974
• Record Type: Research project
• Source Agency: Transportation Research Board
• Contract Numbers: Project 12-112
• Files: TRB, RIP
• Created Date: May 11 2016 2:54PM