Behavior of reinforced concrete beams reinforced with GFRP bars

ABOUT THE INTERNATIONAL CONCRETE ABSTRACTS PORTAL

  • The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.

International Concrete Abstracts Portal

  


Title: Behavior of reinforced concrete beams reinforced with GFRP bars

Author(s): D. H. TAVARES, J. S. GIONGO, P. PAULTRE

Publication: IBRACON

Volume: 1

Issue: 3

Appears on pages(s): 285-295

Keywords: FRP, GFRP, GFRP reinforcement, flexural behavior of GFRP bars.

Date: 9/30/2008

Abstract:
The use of fiber reinforced polymer (FRP) bars is one of the alternatives presented in recent studies to prevent the drawbacks related to the steel reinforcement in specific reinforced concrete members. In this work, six reinforced concrete beams were submitted to four point bending tests. One beam was reinforced with CA-50 steel bars and five with glass fiber reinforced polymer (GFRP) bars. The tests were carried out in the Department of Structural Engineering in São Carlos Engineering School, São Paulo University. The objective of the test program was to compare strength, reinforcement deformation, displacement, and some anchorage aspects between the GFRP-reinforced concrete beams and the steel-reinforced concrete beam. The results show that, even though four GFRP-reinforced concrete beams were designed with the same internal tension force as that with steel reinforcement, their capacity was lower than that of the steel-reinforced beam. The results also show that similar flexural capacity can be achieved for the steel- and for the GFRP-reinforced concrete beams by controlling the stiffness (reinforcement modulus of elasticity multiplied by the bar cross-sectional area – EA) and the tension force of the GFRP bars.


Brazilian Institute of concrete, International Partner Access.

View Resource »