Experimental Research on the application of prestressed SCFRP plates intelligent anchoring device in the reinforcement of concrete beams
A method of coupling the fiber grating into the tension screw to make an intelligent anchoring device is proposed,and the prestressed reinforced carbon fiber board intelligent anchoring device is used to reinforce the concrete beam.The sensing performance of the fiber grating coupled into the tension screw is basically the same as that of the bare fiber.Linear repetition rate up to 95%,it has good repeatability and stability to meet the needs of civil engineering applications.It can be seen that the concrete beam is strengthened by the prestressed carbon fiber board intelligent anchoring device,when the prestressed reinforced carbon fiber board intelligent anchoring device reinforces the concrete beam,its strain and the steel bar strain are coordinated and synchronize,and the error between the tension screw strain and the carbon fiber plate strain is 0.3%,which provides a design method and theoretical basis for the research and development of the health monitoring of the same type of components.
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