THE USE OF EXTERNAL POST-TENSIONING IN BRIDGE REHABILITATION

The basic principles and components of external post-tensioning are briefly reviewed. The application of the method to some typical bridge rehabilitation situations is discussed. These situations include insufficient strength for various reasons, excessive deflection, accompanied by unacceptable cracking, and the need to increase the seismic resistance and ductility of bridge substructures. As an example from practice the rehabilitation work for the Los Chorros viaducts in Carracas, Venezuela are discussed in some detail. This rehabilitation was designed by VSL-International (Bern) and the tendons supplied by VSL France. Finally, two more current examples from practice are presented very briefly. (A) For the covering abstract of the conference see IRRD 850834.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/3433012350
• Corporate Authors:

  Ernst (Wilhelm) and Sohn

  Hohenzollerdamm 170
  1001 Berlin 31,   Germany 
• Authors:
  • Zahn, F A
  • VOUMARD, J M
• Conference:
  • BRIDGE REHABILITATION. PROCEEDINGS OF THE 3RD INTERNATIONAL WORKSHOP ON BRIDGE REHABILITATION, JUNE 14-17, 1992, ORGANIZED BY THE TECHNICAL UNIVERSITY DARMSTADT AND THE UNIVERSITY OF MICHIGAN
• Publication Date: 1992

Language

• English

Media Info

• Features: References;
• Pagination: p. 471-80

Subject/Index Terms

• TRT Terms: Bridges; Concrete; Conferences; Cracking; Posttensioning; Prestressing; Repairing; Strength of materials; Surveillance
• ITRD Terms: 3455: Bridge; 4755: Concrete; 8525: Conference; 5211: Cracking; 4789: Post tensioning; 4777: Prestressing; 3635: Repair; 5544: Strength (mater); 9101: Surveillance
• Subject Areas: Bridges and other structures;

Filing Info

• Accession Number: 00631204
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 3-433-01235-0
• Files: ITRD
• Created Date: Jul 1 1993 12:00AM