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Shear capacity of HPFRC beams flexurally reinforced with steel and prestressed ...
Soltanzadeh, Fatemeh; Mazaheripour, H.; Barros, Joaquim A. O.; Sena-Cruz, JoséThis paper presents the relevant results from an experimental program to assess the shear capacity of high performance fiber reinforced concrete (HPFRC) beams flexurally reinforced with a hybrid system of passive steel and prestressed GFRP longitudinal bars. Three series of two beams with different level of prestressing were tested. The effect of prestressing level on the shear capacity of the beams was the mai...
Analytical bond model for GFRP bars to steel fiber reinforced self-compacting c...
Mazaheripour, H.; Barros, Joaquim A. O.; Sena-Cruz, José; Soltanzadeh, FatemehThe objective of this study is to present a computational algorithm to analytically evaluate the bond behavior between GFRP bar and steel fiber reinforced self-compacting concrete (SFRSCC). The type of information to be derived is appropriate to study the flexural behavior of SFRSCC beams reinforced with GFRP bars in terms of serviceability limit states requirements; in fact the bond between bars and surroundin...
Numerical calibration of bond laws for GFRP bars embedded in steel fiber-reinfo...
Pepe, M.; Mazaheripour, H.; Barros, Joaquim A. O.; Sena-Cruz, José; Martinelli, E.An experimental program was carried out at the Laboratory of Structural Division of the Civil Engineering Department of the University of Minho (LEST-UM) to investigate the bond behaviour of glass fibre reinforced polymer (GFRP) bars embedded in steel fibre reinforced self-compacting concrete (SFRSCC) for the development of an innovative structural system. Thirty-six pull-out-bending tests were executed to asse...
Experimental study on bond performance of GFRP bars in self-compacting steel fi...
Mazaheripour, H.; Barros, Joaquim A. O.; Sena-Cruz, José; Pepe, M.; Martinelli, E.Reinforcing bars made of Glass-Fiber-Reinforced Polymers (GFRP) are more and more common as internal reinforcement of concrete structures and infrastructures. Since the design of GFRP reinforced concrete members is often controlled by serviceability limit state criteria (i.e., deflection or crack width control), an accurate knowledge of the GFRP-concrete bond behavior is needed to formulate sound design equatio...
Experimental and theoretical study on bond behavior of GFRP bars in steel fibe...
Mazaheripour, H.; Barros, Joaquim A. O.; Pepe, M.; Giliberti, A.; Martinelli, E.To estimate the cracking and the deformational behavior of steel fiber reinforced selfcompacting concrete (SFRSCC) beams reinforced with glass fiber reinforced polymer (GFRP) bars, it is fundamental to understand the interfacial bond behavior of embedded bars. Hence, the evaluation of the bond behavior between GFRP and (SFRSCC) was investigated in this study. A closed-form formulation was derived,...
Interfacial bond behaviour of GFRP bar in self-compacting fiber reinforced conc...
Mazaheripour, H.; Barros, Joaquim A. O.; Soltanzadeh, Fatemeh; Gonçalves, DelfinaIn an ongoing research project, discrete steel fibers are being used in a self-compacting concrete (SFRSCC) to replace completely steel stirrups for pre-fabricated beams reinforced longitudinally with pre-stressed glass fiber reinforced polymer (GFRP) and steel bars. To take the advantages of the non-corrodible character and high tensile strength of GFRP bars, the minimum SFRSCC cover needs to be determine...
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