Demonstration of Corrosion-Resistant Hybrid Composite Bridge Beams for Structural Applications

The Army has 1,500 vehicular bridges on its installations that can incur high maintenance costs and even early replacement as aresult of corrosion of the steel support structures or the reinforcing bar in the concrete. The application of corrosion-resistant technologycan extend the service life of b...

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Bibliographic Details
Main Authors: Sweeney,Steven C, Lampo,Ricard G, Wilcoski,James, Olaes,Christopher, Clark,Larry
Format: Report
Language:English
Online Access:Request full text
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Summary:The Army has 1,500 vehicular bridges on its installations that can incur high maintenance costs and even early replacement as aresult of corrosion of the steel support structures or the reinforcing bar in the concrete. The application of corrosion-resistant technologycan extend the service life of bridges and reduce maintenance costs. The Office of the Secretary of Defense Corrosion Preventionand Control Program project demonstrated and validated a corrosion-resistant hybrid-composite beam (HCB) for the reconstructionof a one span of a traditional steel and concrete bridge at Fort Knox, Kentucky. The HCBs were installed on half of thebridge, and conventional steel beams were installed on the other half. Structural analysis of the bridge was performed, and the spanwith HCBs was found to meet all design specifications and load ratings. This technology can increase the life cycle of bridge infrastructurewhen utilized in new construction and replacement by the Army and all other federal agencies. The technologys return oninvestment (ROI) is 4.22