Concrete laterally confined with fibre-reinforced polymers (FRP): experimental study and theoretical model

Autor:	C. Aire, R. Gettu, J. R. Casas, S. Marques, D. Marques
Jazyk:	English<br />Spanish; Castilian
Rok vydání:	2010
Předmět:	compressive strength confinement stressstrain relationship confinement model Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Materiales de Construccion, Vol 60, Iss 297, Pp 19-31 (2010)
Druh dokumentu:	article
ISSN:	0465-2746 1988-3226
DOI:	10.3989/mc.2010.45608
Popis:	This paper presents the findings of an experimental and analytical study of concrete cylinder behaviour when wrapped in fibreglass or carbon fibre-reinforced polymers (FRP). Compression testing was conducted on normal (30 MPa) and high (70 MPa) strength confined and unconfined concrete cylinders measuring 150 x 300 mm. The stress-strain relationship was evaluated in both cases. The findings showed that strength and ductility rose with FRP confinement. The experimental findings were used to develop an analytical model for predicting the stress-strain behaviour of FRP-confined concrete. A comparison of the experimental and analytical results revealed that the model can satisfactorily predict the stress-strain behaviour and ultimate compressive strength of the concretes studied.
Databáze:	Directory of Open Access Journals
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