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TitleAssessment of the effectiveness of prestressed NSM CFRP laminates for the flexural strengthening of RC beams
Author(s)Rezazadeh, M.
Costa, Inês
Barros, Joaquim A. O.
Flexural strengthening
Issue dateJun-2013
PublisherInternational Institute for FRP in Construction (IIFC)
Abstract(s)The flexural behavior of RC beams strengthened with prestressed near-surface-mounted (NSM) carbon-fiber-reinforced-polymer (CFRP) laminate was investigated in this paper. For this purpose, four RC beams were tested under monotonic four-point loading. One beam was kept un-strengthened, as a control beam, and another one was strengthened with a non-prestressed NSM CFRP laminate. The remaining beams were strengthened with NSM CFRP laminates prestressed at 20% and 40% of its ultimate tensile strength. The prestressed NSM CFRP laminate technique provided a significant increment of the load carrying capacity for deflection levels corresponding to serviceability and ultimate limit states. A numerical strategy was also employed to simulate the flexural behavior of the tested RC beams. The experimental and numerical researches are described and the relevant results are presented and discussed.
TypeConference paper
AccessOpen access
Appears in Collections:ISISE - Comunicações a Conferências Internacionais

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