Reconstruction of U.S. Highway 1 from Miami to Key West, Florida, marked the first use of epoxy-coated reinforcing in several new bridges in Florida, including the Long Key Bridge. Since then, increasing corrosion has been found in all splash zones. The novel V-piers of the Long Key Bridge received much attention; nevertheless, the superstructure, upper parts of the V-piers, and fully submerged and cased drilled shaft foundations have no corrosion at all. In 1996, a corrosion investigation was undertaken to determine the mechanisms and rate of corrosion, develop prognoses, and evaluate various courses of action. The corrosion conditions and rate were established by on-site and laboratory analyses. Historical records provided corrosion damage with time. Chloride penetration and corrosion damage were correlated with resistivity and other observations to give a relationship between the corrosive conditions and time to initial corrosion, first cracking, and critical damage. Prognoses were developed and evaluated by life cycle cost-benefit analyses for various courses of action, from “do nothing” to full-scale replacement of the piers for a service life in excess of 75 years. The techniques developed for this project could benefit maintenance monitoring and prognoses for other structures in similar corrosive environments. Contingency plans were prepared for pier replacement with precast modified V-piers to respect both the structural configuration and the historical significance of this bridge. A temporary support system was designed for rapid removal and replacement of each pier while the structure remains open to traffic on this sole route to the Florida Keys.


    Access

    Download

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Corrosion Investigation, Evaluation, and Pier Replacement Scheme for the Long Key Bridge


    Additional title:

    Transportation Research Record: Journal of the Transportation Research Board


    Contributors:


    Publication date :

    1998-01-01




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English




    Underwater bridge pier corrosion detection method and device

    ZHANG XINGQI / WANG LEI / FU GUOXIN et al. | European Patent Office | 2023

    Free access

    Pier A Replacement Project

    Siemion, A. / Nottingham, T. / American Society of Civil Engineers; Committee on Ports and Harbors et al. | British Library Conference Proceedings | 1998


    APPARATUS FOR PROTECTING BRIDGE PIER

    RYU JI KWUN | European Patent Office | 2017

    Free access

    APPARATUS FOR INSPECTING BRIDGE PIER

    LEE BYEONG JU / CHOI JIN WOONG / SHIN YOO SEONG et al. | European Patent Office | 2024

    Free access