Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/13214
Título: | Near surface mounted CFRP strips for the flexural strengthening of RC columns: experimental and numerical research |
Autor(es): | Barros, Joaquim A. O. Varma, R. K. Sena-Cruz, José Azevedo, Álvaro F. M. |
Palavras-chave: | Near surface mounted reinforcement Reinforced concrete columns Strengthening Carbon fiber reinforced polymer strips Bending failure Epoxy adhesive |
Data: | Dez-2008 |
Editora: | Elsevier 1 |
Revista: | Engineering Structures Journal |
Resumo(s): | In the present work, a strengthening technique based on near surface mounted (NSM) carbon fibre laminate strips bonded into slits opened on the concrete cover is used to improve the flexural capacity of columns subjected to bending and compression. This technique avoids the occurrence of the peeling phenomenon, is able to mobilize the full strengthening capacity of the strips, and provides higher protection against fire and vandalism acts. The present paper describes the adopted strengthening technique and reports the experimental characterization of the materials involved in the strengthening process. The results obtained in two series of reinforced concrete columns, subjected to axial compression and lateral cyclic loading, show that a significant increase on the load carrying capacity can be achieved by using the NSM technique. Cyclic material constitutive laws were implemented in a finite element program and the tests with reinforced concrete columns strengthened with the NSM technique were numerically simulated under cyclic loading. These numerical simulations reproduce the experimental load-displacement diagrams satisfactorily. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/13214 |
DOI: | 10.1016/j.engstruct.2008.05.019 |
ISSN: | 0141-0296 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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IJ(ISI)_29_1.pdf | 678,39 kB | Adobe PDF | Ver/Abrir |