DOI: 10.3724/SP.J.1249.2019.01087

Journal of Shenzhen University Science and Engineering (深圳大学学报理工版) 2019/36:1 PP.87-93

Finite element analysis of fiber reinforced polymer shear strengthened deep beams with small shear span ratio

In order to carry out a comprehensive numerical simulation and analysis on the shear performance of the U-shaped fiber reinforced polymer (FRP) shear-reinforced beams with a small shear span-to-effective depth ratio, we use the ATENA finite element analysis software to establish a constitutive model of concrete combined with the latest achievements of the fracture energy theory and damage theory. The effectiveness and universality of the model are verified by using the famous reinforced concrete beams with a small shear span-to-effective depth ratio. The simulation results indicate that the concrete constitutive model has unique accuracy in simulating crack development and the nonlinear mechanical behavior of the member after the cracking of the carbon fiber shear reinforced concrete beam. Under small shear span ratio, the load-deflection curve, crack development distribution and component failure mode predicted by the advanced finite element model are in good agreement with the experimental results.

Key words:structural engineering,fiber reinforced polymer (FRP),reinforced concrete (RC) beam,shear-strengthening,shear span-to-effective depth ratio,finite element method (FEM),numerical simulation

ReleaseDate:2019-01-28 09:56:35

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