Título: | BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH CFC UNDER IMPACT LOADING | ||||||||||||||||||||||||||||||||||||||||
Autor: |
ROBERTO MACHADO DOS SANTOS |
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Colaborador(es): |
GIUSEPPE BARBOSA GUIMARAES - Orientador |
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Catalogação: | 20/FEV/2009 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||||||||||||||||||||||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=13063&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=13063&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.13063 | ||||||||||||||||||||||||||||||||||||||||
Resumo: | |||||||||||||||||||||||||||||||||||||||||
An experimental study on the behavior of reinforced
concrete beams
strengthened in flexure with CFC under impact load was
carried out in this
work. The main objective was to investigate the effects of
the loading rate on the
strength of the beams. The variables were the loading rate
and the ratio of fiber
to steel reinforcement cross sections. All beams were
design to resist the same
load, in a way that the failure should be governed by the
yielding of the
longitudinal tension steel reinforcement. The experimental
program consisted of
the test of eighteen simply supported beams. All the beams
had the same cross
section, span and concrete strength. The only difference
was the amount of
longitudinal tension steel and fiber reinforcements. Static
and dynamic testing
had been carried through. A hammer was used for the impact
load application,
which was released from different heights, giving different
loads rates and,
consequently, different deformation rates in the tested
beams. The results
showed that the beams with reinforcement of CFC had less
capacity of
movement deceleration of hammer fall. It was observed that
the higher the
height of the hammer the higher was the maximum force of
reaction of the
beams, showing practically a linear growth with the
increase of the loading rate.
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