PROBLEMS, SOLUTIONS AND DEVELOPMENTS AT POST-TENSIONING TENDONS FROM THE GERMAN POINT OF VIEW.

Tendons with and without bond have a high level of development. Their durability, however, is considerably influenced by the quality of construction, such as grouting for sufficient corrosion protection. In Germany two trends developed. Apart from the quality assurance of the components and of the injection grout, national and international standards set high demands on the prestressing contractors. The second trend in Germany was to counteract bad construction practice by using controllable, exchangeable and strengthenable post-tensioning tendons. This resulted in a preference for external tendons. Besides the advantages, very soon the disadvantages of these tendons in design and construction were discovered. In connection with quality assurance, the mixed prestressed concrete structures are preferred, consisting of a reasonable combination of external and internal tendons. A new development is the use of controllable, exchangeable internal tendons without bonding that remedies all the notable disadvantages of external tendons yet preserves their advantages. For the covering abstract see ITRD E114200.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/288394055X
• Corporate Authors:

  INTERNATIONAL FEDERATION FOR STRUCTURAL CONCRETE

  CASE POSTALE 88
  LAUSANNE,   Switzerland  CH-1015
• Authors:
  • JUNGWIRTH, D
• Publication Date: 2001

Language

• English

Media Info

• Features: References;
• Pagination: p. 11-24
• Serial:
  • DURABILITY OF POST-TENSIONING TENDONS - TECHNICAL REPORT - PROCEEDINGS OF A WORKSHOP HELD AT GHENT UNIVERSITY ON 15-16 NOVEMBER 2001
  • Publisher: INTERNATIONAL FEDERATION FOR STRUCTURAL CONCRETE
  • ISSN: 1562-3610

Subject/Index Terms

• TRT Terms: Bridges; Concrete; Conferences; Construction; Design; Grout; Material reinforcement; Posttensioning; Reinforcing materials; Standards
• Uncontrolled Terms: Injection (Materials); Selection
• Geographic Terms: Germany
• ITRD Terms: 3455: Bridge; 4755: Concrete; 8525: Conference; 3655: Construction; 9011: Design (overall design); 8125: Germany; 4729: Grout; 3617: Injection (mater); 4789: Post tensioning; 3471: Reinforcement (in mater); 9072: Selection; 187: Specification (standard)
• Subject Areas: Bridges and other structures; Construction; Design;

Filing Info

• Accession Number: 00930361
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• ISBN: 2-88394-055- X
• Files: ITRD
• Created Date: Sep 5 2002 12:00AM