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.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/9058096068
• Corporate Authors:

  Swets & Zeitlinger Publishers

  Heereweg 347-B
  2161 CA Lisse,   Netherlands 
• Authors:
  • Venugopalan, S
  • Hartt, W H
  • Powers, Rodney G
• 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