BRIDGE REHABILITATION AND STRENGTHENING BY CONTINUOUS POST-TENSIONING

THIS ARTICLE DISCUSSES THE DESIGN APPROACH AND THE CONSTRUCTION PROCEDURES FOR STRENGTHENING AN OLD CONCRETE BRIDGE CROSSING THE WELLAND CANAL IN CANADA. THE SIX SIMPLY-SUPPORTED SPANS WERE MADE CONTINUOUS BY MEANS OF EXTERNAL POST-TENSIONING. THE BASIC IDEA BEHIND THE DESIGN, AND THE DEVISED METHODS OF EXECUTION IN THIS PROJECT, ARE PRACTICAL AND ECONOMICAL. THEY CAN BE USED SUCCESSFULLY FOR THE RESTORATION OF OLD CONCRETE BRIDGES SHOWING SIGNS OF OVERSTRESSING AND DETERIORATION. THIS SCHEME WAS ESPECIALLY ATTRACTIVE IN THAT ALL OF THE EXPANSION JOINTS, EXCEPT ONE, WERE ELIMINATED. THIS REDUCES MAINTENANCE COSTS WHILE MINIMIZING INCONVENIENCES. /AUTHOR/

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/08879672
• Supplemental Notes:
  • Vol 14, No 2, PP 88-104
• Authors:
  • Vernigora, E
  • Marcil, J R
  • Slater, W M
  • Aiken, R V
• Publication Date: 1969-4

Media Info

• Serial:
  • PRECAST/PRESTRESSED CONCRETE INSTITUTE. JOURNAL
  • Publisher: Precast/Prestressed Concrete Institute
  • ISSN: 0887-9672

Subject/Index Terms

• TRT Terms: Concrete bridges; Deterioration; Maintenance; Posttensioning
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 00218515
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 29 1994 12:00AM