Bond behaviour and kb factor in GFRP rebars casted in concrete

Tassinari, Aurelio (2019) Bond behaviour and kb factor in GFRP rebars casted in concrete. [Laurea magistrale], Università di Bologna, Corso di Studio in Civil engineering [LM-DM270], Documento full-text non disponibile
Il full-text non è disponibile per scelta dell'autore. (Contatta l'autore)


A proper bond between reinforcement and concrete is key for an appropriate composite action of both materials in reinforced concrete structures. However, to-date limited studies exist on bond of fiber reinforced polymer (FRP) bars in concrete members under flexure. In this paper, the bond strength developed by FRP and steel rebars is evaluated and compared, by testing reinforced concrete beams under three point bending load. The investigation included several beams that were 183 cm long × 15 cm wide × 36 cm deep: many of them were reinforced with sand coated GFRP rebars, while steel was used to reinforce the remaining ones. For each of the reinforcing systems, various different embedded lengths were tested. The beams were tested under a 3-point-bending setup and they were monitored using several measuring devices: LVDTS, potentiometers and strain gauges. Preliminary results show that the GFRP rebars have lower bond capacity than the ones made of steel. Moreover, it was inferred that the embedded lengths suggested by actual code provisions for GFRP rebars are too conservative.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Tassinari, Aurelio
Relatore della tesi
Correlatore della tesi
Corso di studio
Structural Engineering
Ordinamento Cds
Parole chiave
bond,embedded length,GFRP,composites,flexure,sustainability,resilience
Data di discussione della Tesi
13 Giugno 2019

Altri metadati

Gestione del documento: Visualizza il documento