CORROSION EVALUATION OF POST-TENSIONED TENDONS ON THE MID-BAY BRIDGE IN DESTIN, FLORIDA
Several segmental box girder bridges in Florida have experienced corrosion and corrosion-related tendon failures. One of these is the Mid-Bay Bridge near Destin, where as many as 11 tendons were replaced. Additionally, many other tendons exhibited cracking of the polyethylene duct. Visual inspection of this bridge revealed: 1) corrosion of tendons and individual wires ranging from minimal to severe; 2) presence of broken wires; and 3) cracking of the polyethylene duct. Extensive cracking of the polyethylene ducts was not the main cause of tendon corrosion problems. However, it does serve as a corrosion promoter by providing greater moisture, oxygen, and chloride access to the steel. Based on the various field and lab findings, a mechanism of tendon corrosion is proposed. Susceptibility of a particular tendon to deterioration by this cause should vary depending on the extent to which deleterious conditions are present.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/isbn/9058096068
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Corporate Authors:
Swets & Zeitlinger Publishers
Heereweg 347-B
2161 CA Lisse, Netherlands -
Authors:
- Venugopalan, S
- Hartt, W H
- Powers, Rodney G
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Conference:
- Recent Developments in Bridge Engineering. Proceedings of the Second New York City Bridge Conference
- Location: New York, NY
- Date: 2003-10-20 to 2003-10-21
- Publication Date: 2003
Language
- English
Media Info
- Features: Figures; Photos; References; Tables;
- Pagination: p. 243-253
Subject/Index Terms
- TRT Terms: Box girder bridges; Bridge engineering; Corrosion; Metal bridges; Posttensioning; Segmental construction; Steel structures; Structural deterioration and defects; Tendons (Materials)
- Identifier Terms: Mid Bay Bridge (Destin, Florida)
- Geographic Terms: Destin (Florida)
- Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;
Filing Info
- Accession Number: 00965792
- Record Type: Publication
- ISBN: 9058096068
- Files: TRIS
- Created Date: Nov 11 2003 12:00AM