Stainless Steel Strands for Prestressed Concrete Bridge Elements

Prestressed concrete elements such as beams, girders, piles, and decks are an essential part of the vast majority of bridges built in the United States. Concrete bridge elements that are built with prestressed 7-wire uncoated steel strands are susceptible to corrosion leading to structure deterioration. Delaying strand corrosion will reduce maintenance needs, extend the bridge service life, and enhance the overall safety. Therefore, state departments of transportation (DOTs) have been investigating alternative strand materials such as stainless steel to address steel strand corrosions. However, there is no national standards or specifications to support bridge owners in using stainless steel strands. Bridge owners, fabricators, and contractors need specifications and guidelines for the applications of stainless steel strands for prestressed concrete bridge elements. The objectives of this research are to (1) propose modification to the AASHTO Load and Resistance Factor Design (LRFD) bridge design and construction specifications and (2) develop guidelines for the applications of stainless steel strands for prestressed concrete bridge elements including design examples to demonstrate the application of the proposed modifications. At the minimum, the research shall include pre-tensioning and post-tensioning of concrete bridge elements.  

Language

  • English

Project

  • Status: Proposed
  • Funding: $600000
  • Contract Numbers:

    Project 12-120

  • 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 Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Project Managers:

    Dekelbab, Waseem

  • Start Date: 20191231
  • Expected Completion Date: 0
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01707719
  • Record Type: Research project
  • Source Agency: Transportation Research Board
  • Contract Numbers: Project 12-120
  • Files: TRB, RiP
  • Created Date: Jun 3 2019 3:17PM