Development of Criteria to Assess the Effects of Pack-out Corrosion in Built-up Steel Members

The objectives of the proposed pooled-fund study are as follows: (1) To develop AASHTO ready specifications for the evaluation of the effects of pack-out corrosion in built-up steel tension, compression, and flexural members. (2) Provide guidance on the need for repairs and corrosion rates that can be expected in various environments in order to assist owners in programming when repairs may need to be made. (3) Identify the most effective methods of repairs and provide suggesting verbiage that could be used when preparing special provisions for repairs. (4) Develop several case-study examples, including calculations that will be used for training users on the methodologies to be developed. It is anticipated that the research team will host a number of webinars or on-site training sessions to ensure technology transfer and implementation. (5) The impact of this study is obvious considering there is no such quantitative guidance available at present. The results of the work will allow owners to accurately assess the effects of this form of corrosion on various limits states (e.g., strength, fatigue, buckling, etc.) in built-up steel members. Both flexural and truss-type members will be studied. The ability to program repairs based on data-driven models allows for the best possible use of limited maintenance funds and safely extend the life of the existing inventory.

Language

  • English

Project

Subject/Index Terms

Filing Info

  • Accession Number: 01713231
  • Record Type: Research project
  • Source Agency: Federal Highway Administration
  • Contract Numbers: TPF-5(436)
  • Files: RIP, USDOT, STATEDOT
  • Created Date: Aug 5 2019 3:23PM