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Influence of fatigue loading and environmental conditions on the bond behavior ...
Mendes, Pedro J. D.; Barros, Joaquim A. O.; Sena-Cruz, José; Taheri, MahsaTo assess the influence of fatigue loading and environmental conditions on the bond behavior between glass fiber reinforced polymer (GFRP) systems and steel fiber reinforced self-compacting concrete (SFRSCC) that are adhesively bonded, an experimental program composed of push-out tests was carried out. The following three scenarios were selected for the environmental conditions: natural conditions; wet-dry cycl...
Steel fibre reinforced concrete for elements failing in bending and in shear
Barros, Joaquim A. O.; Lourenço, Lúcio; Soltanzadeh, Fatemeh; Taheri, MahsaDiscrete steel fibres can increase significantly the bending and the shear resistance of concrete structural elements when Steel Fibre Reinforced Concrete (SFRC) is designed in such a way that fibre reinforcing mechanisms are optimized. To assess the fibre reinforcement effectiveness in shallow structural elements failing in bending and in shear, experimental and numerical research were performed. Uniaxial comp...
A parametric study on the use of strain softening/hardening FRC for RC elements...
Barros, Joaquim A. O.; Taheri, Mahsa; Salehian, HamidrezaDocumento submetido para revisão pelos pares. A publicar em Materials in Civil Engineering. ISSN 0899-1561 ; Using a design oriented model, which was recently developed for the prediction of the moment-curvature relationship of a cross section of beams made by strain softening or strain hardening fiber reinforced concrete (FRC) and that can also include a certain percentage of longitudinal steel bars, a parame...
A design model for fibre reinforced concrete bending elements with longitudinal...
Taheri, Mahsa; Barros, Joaquim A. O.; Salehian, HamidrezaA close form solution to calculate the moment-curvature and load-deflection response of strain-softening and strain-hardening fibre reinforced concrete (FRC) elements failing in bending and reinforced longitudinally with pre-stressed steel and fibre reinforce polymer (FRP) bars is presented. This hybrid reinforcement is used for the development of high durable pre-fabricated and cost competitive beams. Pre-s...
A design model for fibre reinforced concrete beams pre-stressed with steel and ...
Barros, Joaquim A. O.; Taheri, Mahsa; Salehian, Hamidreza; Mendes, Pedro J. D.This paper presents a design oriented model to determine the moment-curvature relationship of elements of rectangular cross section failing in bending, made by strain softening or strain hardening fibre reinforced concrete (FRC) and reinforced with perfectly bonded pre-stressed steel and fibre reinforced polymeric (FRP) bars. Since FRP bars are not affected by corrosion, they have the minimum FRC cover thic...
An analytical model to simulate tension stiffening mechanism in moment-rotation...
Taheri, Mahsa; Barros, Joaquim A. O.Report 12-DEC/E-24
Development of a pedestrian bridge with GFRP profiles and fibre reinforced self...
Barros, Joaquim A. O.; Mendes, Pedro J. D.; Sena-Cruz, José; Taheri, MahsaIn recent years, the number of pedestrian bridges built from composites materials has notably increased. The combination of fiber reinforced polymers (FRP) profiles with fiber reinforced concrete (FRC) elements is being adopted in this type of structures, since the ductility, high post-cracking tensile strength, compressive stiffness and strength of FRC can be combined with the benefits derived from the use of ...
Design-oriented approach for strain-softening and strain-hardening fibre hybrid...
Taheri, Mahsa; Barros, Joaquim A. O.; Salehian, HamidrezaIn the present paper a design oriented model is proposed to evaluate the flexural resistance of elements of fibre reinforced concrete (FRC) of tensile strain-softening or tensile strain-hardening behaviour and strengthened longitudinally by steel bars in the tensile zone of a rectangular cross section. The cross sectional moment-curvature response predicted by this model is used in a numerical approach to predi...
A design model for strain-softening and strain-hardening fibre reinforced eleme...
Taheri, Mahsa; Barros, Joaquim A. O.; Salehian, HamidrezaRelatório 24-DEC/E-09
A design-based approach to estimate the moment-curvature relationship of fiber ...
Salehian, Hamidreza; Barros, Joaquim A. O.; Taheri, MahsaRelatório A0.T0.UM.1
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