TESTING OF STRENGTHENED REINFORCED AND PRESTRESSED CONCRETE BEAMS

This article describes some work conducted under the test programme of the ROBUST consortium, including the field testing of prestressed concrete beams strengthened with carbon fibre reinforced plastics (CFRP) plates. CFRP plates can be used more effectively and economically than steel plates, and CFRP has an outstanding combination of properties. Researchers have concluded that CFRP plates provide the best characteristics for the structural strengthening of concrete structures. One of ROBUST's main objectives is to develop practical design rules and guidelines for the flexural strengthening of reinforced and prestressed concrete beams. So far, over 100 static beam tests and 18 creep, fatigue, and durability beam tests have been conducted by the ROBUST programme. Testing has included tests on CFRP itself. Finite element methods are also being used to model and support the experimental beam tests. Ten 18.0m post-tensioned prestressed concrete beams have been tested under site conditions. Some results on unstressed and stressed plates are outlined, together with a detailed risk analysis on using CFRP to strengthen existing structures. ROBUST's results show clearly that the use of CFRP plates to strengthen beams in flexure is a viable and cost-effective alternative to steel plate bonding.

• 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:
  • Lane, J S
  • LEEMING, M B
  • FASHOLE-LUKE, P S
• Publication Date: 1997

Language

• English

Media Info

• Pagination: p. 10-3
• Serial:
  • CONSTRUCTION REPAIR
  • Volume: 11
  • Issue Number: 1
  • Publisher: PALLADIAN PUBLICATIONS LTD
  • ISSN: 0967-0726

Subject/Index Terms

• TRT Terms: Beams; Carbon; Fibers; Field tests; Material reinforcement; Prestressed concrete; Properties of materials; Reinforced concrete; Reinforcing materials; Structural plates; Test procedures
• Uncontrolled Terms: Plate
• ITRD Terms: 3472: Beam; 7158: Carbon; 4557: Fibre; 6226: In situ; 4796: Prestressed concrete; 5925: Properties; 4794: Reinforced concrete; 3471: Reinforcement (in mater); 3491: Slab; 6288: Test method
• Subject Areas: Materials;

Filing Info

• Accession Number: 00737350
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD
• Created Date: Jun 27 1997 12:00AM