Durability Strategies for Steel Bridges
According to the National Steel Bridge Alliance, there are several proven ways to protect steel bridges from corrosion, and no single solution is best for all circumstances.
The first consideration when selecting one of these techniques is, of course, a bridge’s anticipated exposure to corrosive elements over its lifetime. In addition, teams must consider initial and life-cycle costs, fabrication, productivity, and long-term performance and maintenance when choosing a corrosion protection approach for a given bridge.
In the following video from the June 2021 Steel Bridge Essentials webinar series, Jeff Carlson, P.E., Director of Market Development, National Steel Bridge Alliance, and Jennifer McConnell, Associate Professor, University of Delaware, provide information on durability strategies for steel bridges.
For additional information, please download the Volume 19 of The FHWA Steel Bridge Design Handbook – this handbook covers a full range of topics and design examples intended to provide bridge engineers with the information needed to make knowledgeable decisions regarding the selection, design, fabrication, and construction of steel bridges.
Durability Strategies for Steel Bridges (Part 1)
- Presenter: Jeff Carlson, P.E. (email), Director of Market Development, National Steel Bridge Alliance
- Download Presentation Slides
Durability Strategies for Steel Bridges (Part 2)
Does steel provide a cost-effective solution for short span bridges?
Short span steel bridges deliver significant cost savings because of steel’s light weight, the allowance of smaller abutments, rapid installation, and the use of lighter equipment and local crews. Steel also delivers durability with an expected service life of more than 100 years for many bridges, considerable life cycle advantages, and minimal maintenance requirements over the service life of the structure.
Dr. Michael Barker, University of Wyoming, explored the initial costs, life cycle costs, future costs, and bridge life of 1,186 typical steel and concrete state bridges in Pennsylvania built between 1960 and 2010. He compiled a database from PennDOT historical data comparing five types of bridges, including concrete precast I-beam, box adjacent, and box spread bridges, and steel rolled beam and welded plate girder.
Results showed steel I-beams have the lowest average deterioration rate; have the longest average expected life (81 years); offer the lowest average initial and life cycle costs for short bridges; and have lower average future costs compared to initial costs.
Download the fact sheet.
Durability & Coatings
HDG Rebar vs. Epoxy-Coated Rebar
A new publication by the American Galvanizers Association compares the performance of hot-dip galvanized (HDG) rebar and epoxy-coated rebar in reinforced structures.
Durability & Coatings
Determining and Overcoming the Size Limitations of Hot-Dip Galvanizing
The American Galvanizers Association explains how kettle size limits can be overcome with strategies like modular design, progressive dipping, and other creative solutions.
News
SSSBA to Host Session on Corrosion Protection Systems at International Bridge Conference (July 15)
The SSSBA will host a session at the International Bridge Conference in Pittsburgh, PA, focused on corrosion protection systems for steel bridges, featuring expert presentations on weathering steel, galvanizing, metallizing and painting.
Short Span Steel Bridges