• fib Model Code for Concrete Structures (2020)

    +

  • fib President Stephen Foster

    fib President Stephen Foster

    fib President 2023-2024

  • The International Federation for Structural Concrete

    The International Federation for Structural Concrete

    A Bridge between Research and Practice



    The knowledge developped and shared by the fib (fib Bulletins, fib events, fib workshops, fib courses, etc.) is entirely the result of the volunteer work provided by the fib members.

    +

Prestressed CFRP laminates for flexural strengthening of reinforced concrete beams

P. França, IST University, Lisbon, Portugal
A. Costa, IST University, Lisbon, Portugal
J. Appleton, IST University, Lisbon, Portugal

Significant research on strengthening reinforced concrete (RC) structures with carbon fibre reinforced polymer (CFRP) laminates has been done in recent years. The interest in prestressing this material and the evaluation of the behaviour of the strengthened RC structures is the focus of this paper. A technique of strengthening RC slabs with prestressed CFRP laminates was tested on several T cross-section large-scale RC beams. Comparisons are established between the reference RC beam and the strengthened beams with prestressed and non-prestressed CFRP laminates. To simulate the behaviour of the beams, a non-linear numerical model was used and validated by experimental results. This strengthening technique with prestressed CFRP laminates revealed a substantial improvement, both at serviceability and ultimate states, when compared with the reference beam and with the non-prestressed CFRP laminate strengthened beam. 

fib postal address

Ch. du Barrage, Station 18
CH-1015 Lausanne
Switzerland

Contact

p : +41 21 693 27 47
f : +41 21 693 62 45
e : info@fib-international.org
w : www.fib-international.org

Follow fib

Subscribe our newsletter

News

Follow us on
           

Join the fib

Join the fib