CLIFTON BRIDGE REPAIR AND MONITORING PROJECT

This paper outlines a major maintenance and repair scheme for a post-tensioned prestressed concrete bridge in Nottinghamshire, England. The bridge carries part of the A52 northbound traffic and merging A453 eastbound traffic over the River Trent. It is a major link in Nottingham's road system. The bridge was opened in 1958, and has two varying depth anchor cantilever spans of multi-cell box construction, supporting a precast beam and in-situ slab suspended beam. Signs of its deterioration became evident in 1991, including: (1) rutting in the nearside lane; (2) spalling and frost-damaged upstands; (3) leaking expansion joints; and (4) failed waterproofing in some places. While the repair scheme was being developed, a serious durability problem was identified, disclosing high chloride corrosion and damaged tendons. The repair strategy included removal of the chloride contaminated grout around the tendons, and replacing it by new grout, in an attempt to repassivate the stressing tendons and stop or at least slow down the corrosion. Due to the extreme vulnerability of the prestressing system, electrochemical monitoring of corrosion and strain monitoring of joints was begun. Both monitoring systems are controlled, and their data are stored, by two dataloggers. The paper presents and assesses the results of the monitoring.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/09670726
• Corporate Authors:

  PALLADIAN PUBLICATIONS LTD

  THE OLD FORGE
  ELSTEAD, SURREY  United Kingdom  GU8 6DD
• Authors:
  • CURTIS, I L
  • DILL, M J
  • ZEJMA, I
  • Driver, R
• Publication Date: 1995

Language

• English

Media Info

• Pagination: p. 33-7
• Serial:
  • CONSTRUCTION REPAIR
  • Volume: 9
  • Issue Number: 6
  • Publisher: PALLADIAN PUBLICATIONS LTD
  • ISSN: 0967-0726

Subject/Index Terms

• TRT Terms: Box girders; Bridges; Cantilevers; Continuous structures; Corrosion; Data collection; Deformation; Deterioration; Durability; Electrolysis; Grout; Halides; Joints (Engineering); Prestressed concrete; Repairing; Seepage; Slabs; Spalling; Surveillance; Water; Waterproofing
• Geographic Terms: United Kingdom
• ITRD Terms: 3474: Box girder; 3455: Bridge; 3450: Cantilever; 9006: Continuous; 5252: Corrosion; 8623: Data acquisition; 5595: Deformation; 5255: Deterioration; 5910: Durability; 7135: Electrolysis; 4729: Grout; 7314: Halide; 2998: Joint (structural); 4796: Prestressed concrete; 3635: Repair; 4315: Seepage; 3491: Slab; 5231: Spalling; 9101: Surveillance; 8119: United Kingdom; 4355: Water; 3375: Waterproofing
• Subject Areas: Bridges and other structures; Hydraulics and Hydrology;

Filing Info

• Accession Number: 00723191
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jul 26 1996 12:00AM