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TitleSeismic strengthening of beam-column joints with multidirectional CFRP laminates
Author(s)Coelho, Mário Rui Freitas
Fernandes, Pedro Miguel Gomes
Melo, José
Sena-Cruz, José
Varum, Humberto
Barros, Joaquim A. O.
Costa, Aníbal
Seismic retrofitting
Multidirectional CFRP laminates
RC beam-column joint
Seismic strengthening
MF-EBR strengthening technique
Issue date2012
PublisherInternational Institute for FRP in Construction (IIFC)
Abstract(s)An experimental program was carried out to analyse the potentialities of a technique based on the use of multidirectional CFRP laminates (MDL-CFRP) for the seismic repair and strengthening of reinforced concrete (RC) beam-column joints. This experimental program comprises cyclic tests on three full-scale RC joints, representative of interior beam-column connections in buildings. The joints were initially submitted to a cyclic test inducing a damage pattern representative of a seismic event. Subsequently, they were repaired and strengthened with MDL-CFRP. The strengthened joints were then tested for the same loading history of the original ones up to their failure. The adopted strengthening technique uses the MDL-CFRP that are simultaneously glued and anchored to the concrete surfaces. This technique is called Mechanically Fastened and Externally Bonded Reinforcement (MF-EBR). In the present study, the effectiveness of two different strengthening configurations was investigated. The tests are described and the main results are presented and analyzed.
TypeConference paper
AccessOpen access
Appears in Collections:ISISE - Comunicações a Conferências Internacionais

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