CFRP strengthening of reinforced and prestressed concrete bridges: research and practice

The use of carbon fibre reinforced polymers (CFRP) to strengthen concrete bridges has become more and more popular in recent years. It is now generally accepted by design engineers that this method has many advantages. However, there are still a number of issues regarding the use of this rather new material. Some of the issues include a lack of understanding of the bond behaviour between CFRP and concrete, divergence of opinion about design and detailing rules for debonding and lack of understanding with regard to ductility of strengthened elements. CFRP strengthening can be an elegant solution to many structural deficiency problems. At the same time, this method does have many limitations and not all structures can be satisfactorily strengthened with CFRP. In this paper, the author attempts to present a concise review of the behaviour of concrete structures retrofitted with FRP, the theories behind recommended design formulas as well as the common design and construction issues. To illustrate some of the issues, some real design samples are presented.

• Authors:
  • Pham, H B
• Conference:
  • Australian Small Bridges Conference, 4th
  • Location: Melbourne Victoria, Australia
  • Date: 2011-5-10 to 2011-5-11
• Publication Date: 2011-5

Language

• English

Media Info

• Pagination: 13p
• Monograph Title: 4th Australian Small Bridges Conference 2011, Albert Park, Melbourne, 10th-11th May

Subject/Index Terms

• TRT Terms: Bridges; Concrete; Concrete bridges; Polymers
• Uncontrolled Terms: Strengths
• ATRI Terms: Bridge materials
• ITRD Terms: 9011: Design (overall design); 3471: Reinforcement (in mater); 5544: Strength (mater)
• Subject Areas: Bridges and other structures; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 01351522
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ARRB, ATRI
• Created Date: Sep 14 2011 8:32AM