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Structural Engineering and Mechanics Volume 9, Number 4, April 2000 , pages 349-364 DOI: https://doi.org/10.12989/sem.2000.9.4.349 |
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Numerical investigation on beams prestressed with FRP |
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Pisani MA
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| Abstract | ||
| 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 | ||
| Address | ||
| 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 | ||