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A platform for research: civil engineering, architecture and urbanism
Advancements in shear strengthening of prestressed concrete I-girders using fiber reinforced polymers
A number of attempts were made by different researchers in the last couple of decades to strengthen prestressed concrete (PC) I-girders in shear using externally bonded FRP (fibre reinforced polymer) reinforcement. The unanimous observation reported in the literature is the early debonding of FRP shear reinforcement around the internal angles of the I-section. Because of this undesirable phenomenon, the strength of the FRP is utilized inefficiently. This paper gives an overview of the techniques utilized in the past and their relative performance in order to develop a rational solution to the debonding problem, particularly for I-sections. The anchoring techniques used in the past includes different types of FRP anchors as well as mechanical anchors to protect FRP shear reinforcement from debonding on the I-section. It can be concluded that the definite solution to the debonding problem on I-sections has not been obtained yet. This is because of the complex failure modes of FRP shear reinforcement and PC I-girders.
Advancements in shear strengthening of prestressed concrete I-girders using fiber reinforced polymers
A number of attempts were made by different researchers in the last couple of decades to strengthen prestressed concrete (PC) I-girders in shear using externally bonded FRP (fibre reinforced polymer) reinforcement. The unanimous observation reported in the literature is the early debonding of FRP shear reinforcement around the internal angles of the I-section. Because of this undesirable phenomenon, the strength of the FRP is utilized inefficiently. This paper gives an overview of the techniques utilized in the past and their relative performance in order to develop a rational solution to the debonding problem, particularly for I-sections. The anchoring techniques used in the past includes different types of FRP anchors as well as mechanical anchors to protect FRP shear reinforcement from debonding on the I-section. It can be concluded that the definite solution to the debonding problem on I-sections has not been obtained yet. This is because of the complex failure modes of FRP shear reinforcement and PC I-girders.
Advancements in shear strengthening of prestressed concrete I-girders using fiber reinforced polymers
Yaqub, Muhammad Arslan (author) / Matthys, Stijn (author) / Czaderski, Christoph (author) / Snijder,, Bert
2021-01-01
IABSE Congress Ghent 2021, Structural Engineering for Future Societal Needs
Conference paper
Electronic Resource
English
DDC:
690
| British Library Online Contents | 2003
Strengthening Prestressed-concrete Girders with Externally Prestressed PBO Fiber Sheets
| British Library Conference Proceedings | 2002