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Evaluate of Flexural Behavior of the Prestressed Concrete Girder Using Carbon Fiber Reinforced Plastics via Finite Element Method

Hue Thi Nguyen 1, Hiroshi Masuya 2, and Saiji Fukada 2
1. Graduate school of Natural Science and Technology, Kanazawa University, Ishikawa, Japan Thuyloi University, 175 Tay Son, Dong Da, Hanoi, Vietnam
2. Faculty of Geoscience and Civil Engineering, Institute of Science and Engineering, Kanazawa University, Ishikawa, Japan
Abstract—A flexural experiment was conducted on the tested prestressed concrete girder using carbon fiber reinforced plastics (CFRP) tendons, which has the full scale of an actual one and was placed next to the main girders of Shinmiya Bridge in the corrosive environment nearly 30 years. In this study, the flexural behavior of this tested girder was investigated by the finite element method. A three-dimensional analysis model was built in LS-DYNA and analyzed by an explicit finite element program. The load-bearing capacity, load-deflection curve, and the crack pattern were evaluated in comparing with experimental results. The comparison result showed that there was a consistency between results obtained from the simulation and that obtained from the experiment of the tested girder in 2017. Based on this model, the decrease of pre-stressing force in the tendons, the reduction of the compression concrete strength were studied to evaluate the change in the behavior of the structure.
 
Index Terms— CFRP, flexural behavior, numerical analysis, prestressed concrete girder

Cite: Hue Thi Nguyen, Hiroshi Masuya, and Saiji Fukada, "Evaluate of Flexural Behavior of the Prestressed Concrete Girder Using Carbon Fiber Reinforced Plastics via Finite Element Method," International Journal of Structural and Civil Engineering Research, Vol. 8, No. 3, pp. 204-209, August 2019. doi: 10.18178/ijscer.8.3.204-209
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