Curved carbon fiber plate clip

Abstract

The invention provides a carbon fiber board clamping piece with an arc-shaped surface, which is a two-piece wedged-plate-shaped clamping piece. The upper surface of a cross section of each wedge-shaped plate for forming the carbon fiber board clamping piece with the arc-shaped surface is a circular-arc-shaped surface with protruding arc-shaped surface height h of 0.3-1mm; the lower surface of the cross section is a plane; and an included angle alpha between a circular-arc-shaped surface bus of the upper surface and the lower surface is 1-3 degrees in the vertical section direction of each wedge-shaped plate. When the carbon fiber board clamping piece with the arc-shaped surface disclosed by the invention suffers from pull force in the direction along a carbon fiber board, the carbon fiber board clamping piece can tightly clamp the carbon fiber board and the circular-arc-shaped surface on the surface can fit the deformation of an anchor plate, so that the pressing forces in the middle of the clamping piece and at the two sides of the clamping piece are the same; and when the carbon fiber board with the width which is more than 50mm is used, the anchoring force can exceed more than 85% of the tensile limitation of the carbon fiber board, so that the problem that the stress of an original plane carbon fiber board clamping piece is not uniform is solved, and the high-efficiency anchoring of the wider carbon fiber board is realized.

Description

technical field [0001] The invention relates to a carbon fiber plate anchor fitting, in particular to a carbon fiber plate clip. Background technique [0002] Carbon fiber sheet is a new type of high-strength material. It is usually pasted on the surface of concrete components in civil engineering to strengthen the strength of the component; if it is pre-tensioned before pasting and then anchored to the surface of the component, the bending strength and crack resistance of the component can be enhanced. , It can also make full use of its strength; therefore, prestressed carbon fiber reinforced concrete members have obvious advantages over ordinary pasted fiber reinforcement. However, the prestressed reinforcement technology needs to stretch and anchor the carbon fiber sheet, and the sheet has a certain width. It is not easy for the anchor splint to clamp the carbon fiber sheet uniformly in the entire width range; In 2011, a wedge-shaped clip-type carbon fiber plate anchor u...

AI Technical Summary

Problems solved by technology

[0005] Because the upper surface of the arc-shaped carbon fiber plate clip of the present invention is a circular arc surface with a slightly raised height h of 0.3 to 1 mm, the lower surface is a plane; in the longitudinal section direction of each wedge-shaped plate, the arc of the upper surface There is an included angle α of 1 to 3 degrees between the surface busbar and the lower surface; when in use, clamp the carbon fiber plate with the plane of two clips and push it into the wedge anchor with a certain pressure; When pulling in the direction of the carbon fiber plate, it can clamp the carbon fiber plate and the arc surface on its upper surface can fit the deformation of the anchor plate (see image 3 ), so that the pressing force on the middle and both sides of the clip is consistent, which solves the problem of uneven force on the clip of the original flat carbon fiber plate, so as to achieve high-efficiency anchoring of the wider carbon fiber plate

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