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Structural Engineering and Mechanics   Volume 9, Number 4, April 2000, pages 349-364
Numerical investigation on beams prestressed with FRP
Pisani MA

Abstract     [Buy Article]
    This paper aims to make a contribution to understanding which methods apply for structural analysis of beams prestressed with FRP cables. A parametric non-linear numerical analysis of simply supported beams has been performed. In this analysis the shape of the cross-section, the strength of concrete, the material adopted for the cables (steel, GFRP, CFRP), the prestressing system (bonded or unbonded prestressing) and the degree of prestressing were changed to collect a broad range of data which, the author contends, should cover the most frequent types of common practice. The output data themselves and their comparison allow us to suggest some rules that could be adopted when dealing with beams prestressed with these innovatory materials that have an elastic-brittle behaviour.
Key Words
    fibre reinforced plastic cables, unbonded prestressing, bonded prestressing, structural analysis, load-carrying capacity
Pisani MA, Politecn Milan, Dept Struct Engn, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy
Politecn Milan, Dept Struct Engn, I-20133 Milan, Italy

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