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The three-point bending tests of BFRP deck

The Study of Three-Point Bending Test and Finite Element Analysis on FRP Bridge Deck Yeou-Fong Li 1 , Tseng-Hsing Hsu 2 and Chia-Hao Wu 3. 1 Professor of the Department of Civil Engineering , NTUT, Taipei, Taiwan .

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The three-point bending tests of BFRP deck

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  1. The Study of Three-Point Bending Test and Finite Element Analysis on FRP Bridge DeckYeou-Fong Li1 , Tseng-Hsing Hsu2 and Chia-Hao Wu3 1Professor of the Department of Civil Engineering , NTUT, Taipei, Taiwan . 2 Assistant Professor, Department of Civil Engineering, Chung Hua University, Taiwan. 2 Master of the Department of Civil Engineering, NTUT, Taipei, Taiwan. • The three-point bending tests of BFRP deck • The three-point bending tests of GFRP deck Abstract : This study presents the use of Fiber Reinforced Plastic (FRP) composite bridge deck subjected to three-point bending test to determine the mechanical behaviors as well as the failure modes. Test results were compared with the results taken from Finite-Element Method (FEM) analysis software to verify the accuracy of the Finite-Element model. Three different FRP composite bridge panel types were used for the experiments. One is the prototype panel, an epoxy mortar-filled FRP panel, and the third is an epoxy mortar-filled FRP panel wrapped with carbon fiber. A Load Cell and Dial Gauge were used in the three-point bending test to measure the force-displacement relationship of each specimen and also make a comparison of the failure mode. Finally, in this study, numerical analysis software, ANSYS, was used to compare the finite element analysis results with that of the experimental results. The results of the comparison on analysis and experiment are very close; which verifies the finite element model's accuracy. Keywords： Fiber Reinforced Plastic (FRP), Bridge deck, Three-Point Bending Test, Finite Element Analysis • Comparing the P-δ relationships of BFRP deck and BFRP deck fill with epoxy mortar • Comparing the P-δ relationships of GFRP deck and GFRP deck fill with epoxy mortar • Conclusions From the experiment result of specimens BFRP deck and GFRP deck, by wrapping or filling the FRP deck can effectively change the failure mode, enhance the stiffness and ultimate strength, and gives them a high tensile strength. Finite-Element analysis software, ANSYS, was used to compare BFRP deck and GFRP deck of the numerical results with that of the experimental results. Both result are quite close to each other.

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