Finite Element Analysis of the Beam-Bond Test of Steel and GFRP Bars with Concrete

Abstract:

The ecological thinking and the development of new materials foreground the composite structures made of FRP (fiber reinforced polymers) and concrete. Before the use in real concrete structures, the material characteristics and composite action with concrete need numerical, analytical, and experimental evaluation. The key to developing the composite action of an FRP reinforcement in concrete is a sufficient bond between the reinforcement and concrete. The GFRP (Glass Fiber Reinforced Polymer) bars as the most common and affordable alternative to steel bars are used in this study to investigate the bond with concrete on the analytical model. The finite element model simulates the beam-bond test of GFRP and steel bars to concrete. The effect of bar diameter and type of reinforcement on the bond behavior are analyzed. Finally, the results obtained from the analytical model are compared with the experimental results from the literature.

• Periodical: Key Engineering Materials (Volume 930)
• Pages: 113-118
• DOI: https://doi.org/10.4028/p-k116hv
• Online since: August 2022
• Authors: Michaela Štefanovičová*, Robert Sonnenschein, Katarína Gajdošová
• Keywords: Bond, Bond Stress, Fe Model, GFRP, RILEM Beam Test, Slip

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