ETDs @PUC-Rio
| Título: | AN EXPERIMENTAL STUDY OF FLEXURAL STRENGTHENING OF REINFORCED CONCRETE BEAMS USING CARBON FIBER STRIPS | ||||||||||||||||
| Autor: |
ANA CAROLINA NEVES DE ARAUJO |
||||||||||||||||
| Colaborador(es): |
MARTA DE SOUZA LIMA VELASCO - Orientador EMIL DE SOUZA SANCHEZ FILHO - Coorientador |
||||||||||||||||
| Catalogação: | 04/SET/2002 | Língua(s): | PORTUGUESE - BRAZIL |
||||||||||||||
| 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. |
||||||||||||||||
| Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=2933&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=2933&idi=2 |
||||||||||||||||
| DOI: | https://doi.org/10.17771/PUCRio.acad.2933 | ||||||||||||||||
| Resumo: | |||||||||||||||||
|
This investigation deals with the experimental evaluation
of the performance of carbon fiber composites used for
flexural strengthening of six reinforced concrete beams.
The experimental program consists on the tests of seven
simply supported beams with an overhanging portion, each
one with the same cross section, steel reinforcement and
span.The beams were designed to have the same value of
maximum positive and negative moments. The first beam was
not strengthened and it was used as a reference beam. The
flexural strengthening of two categories of beams was
considered. Category I beams were designed with equal
flexural strengthening in the maximum negative and positive
moments region. Category II beams were designed with double
flexural strengthening in the maximum negative moment
region.A total of three concrete beams of each category
were constructed, instrumented and tested at the PUC-Rios
Structures and Materials Laboratory. The average concrete
strength was 20 MPa. The reinforcement steel bars have a
yield strength of MPa. The flexural strengthening was
applied under loading.The responses of the beams in terms
of deflections, strains and modes of failure were
examined. It was possible to verify a significant
increasing in loading-carrying capacity of the beams due to
strengthening. The results of this investigation are useful
in substantiating the design data and providing design
guidelines for this type of strengthening and they show that
the energetic criterions are adequate parameters for the
analysis of the beams.
|
|||||||||||||||||
|
|||||||||||||||||
