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Ductility of Beams Strengthened with Externally Bonded Composites

 Ductility of Beams Strengthened with Externally Bonded Composites
Autor(en): , ,
Beitrag für IABSE Symposium: Improving Infrastructure Worldwide, Weimar, Germany, 19-21 September 2007, veröffentlicht in , S. 546-547
DOI: 10.2749/weimar.2007.0219
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This paper presents results of a theoretical study to evaluate the ductility of reinforced concrete beams strengthened in flexure with externally bonded carbon fibre reinforced polymers (CFRPs). ...
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Autor(en):


Medium: Tagungsbeitrag
Sprache(n): Englisch
Tagung: IABSE Symposium: Improving Infrastructure Worldwide, Weimar, Germany, 19-21 September 2007
Veröffentlicht in:
Seite(n): 546-547 Anzahl der Seiten (im PDF): 8
Seite(n): 546-547
Anzahl der Seiten (im PDF): 8
Jahr: 2007
DOI: 10.2749/weimar.2007.0219
Abstrakt:

This paper presents results of a theoretical study to evaluate the ductility of reinforced concrete beams strengthened in flexure with externally bonded carbon fibre reinforced polymers (CFRPs).

Research into the design of flexural strengthening of concrete structures with carbon fibre composites (CFC) is well known, but understanding of the beams’ ductility behaviour has yet to reach the same level.

The main objective of this investigation is to discover a new and consistent approach towards the ductility of reinforced concrete beams flexurally strengthened by carbon fibre composites.

The need to clarify the behaviour of CRFP strengthened beams is defined as a new energetic index based on the strain energy of the deformed beam. The ductility is evaluated by using the energy indexes obtained from the curves for load vs. Deflection, and bending moment vs. Curvature.

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