Carbon fiber plate anchorage device limiting tensioning block

Abstract

The invention discloses a carbon fiber plate anchorage device limiting tensioning block which comprises a block body. A square through hole for a carbon fiber plate to penetrate through is formed in the block body, a curved surface concaved inwards is formed in the face, making contact with an anchorage device, of the block body, and a limiting groove communicated with the square through hole is formed in the center of the curved surface. According to the carbon fiber plate anchorage device limiting tensioning block of the structure, in the process that a carbon fiber plate is stretched, shear stress in the thickness direction of the carbon fiber plate can be avoided, stress concentration of the tensioning block can be reduced, and therefore the service life of the tensioning block is prolonged.

Description

technical field [0001] The invention relates to a position-limiting tension block of a carbon fiber plate anchor. Background technique [0002] In recent years, high-strength composite fiber materials such as carbon fiber boards have been widely used in the reinforcement field of civil engineering. Usually, the carbon fiber plate is pasted on the surface of the concrete component to improve the strength of the concrete component. If the carbon fiber plate is stretched and then anchored on the surface of the reinforced member, the bending strength and resistance of the reinforced member can be improved, the use efficiency of carbon fiber materials can be improved, and the reinforcement cost can be reduced. [0003] To increase the strength of a component with a carbon fiber plate, it is necessary to stretch the carbon fiber plate with the help of a tensioning system, and then use anchors to anchor the two ends of the carbon fiber to the reinforced component. The tensioning ...

AI Technical Summary

Problems solved by technology

In the existing tension block, since there is no limit structure in the thickness direction, the center plane of the anchor and the center plane of the tension block are prone to misalignment during the process of driving the anchor to move and stretch the carbon fiber plate, and the anchor Offset downward or upward along the thickness direction, which causes the carbon fiber plate to have shear stress in the thickness direction, resulting in shear fracture of the carbon fiber plate. In addition, during the stretching process, it is easy to cause the stress of the tension block itself Concentration, which greatly shortens the service life of the tensioning block

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