Carbon fiber inhaul cable with good anchoring effect and uniform stress

Abstract

The invention discloses a carbon fiber inhaul cable good in anchoring effect and uniform in stress. The carbon fiber inhaul cable good in anchoring effect and uniform in stress comprises an anchor cup, an inhaul cable body and an anchoring assembly. The anchor cup is provided with an anchor hole, and the anchor hole comprises an inlet and an outlet. The inhaul cable is formed by bundling a plurality of carbon fiber rods. The anchorage device assembly comprises a wire separating plate, a lining, a wedge nail and an anchoring material. The penetrating hole is formed in the wire separating plate, and a circle of chamfer is arranged at the end opening of the end, facing the lining, of the penetrating hole. And the conical end of the lining faces the wire separating plate and is arranged in the chamfer, so that the lining can be fixed, the lining can better clamp the carbon fiber rods, and each carbon fiber rod is ensured to be uniformly stressed. The wedge nail is wedged in from the end, located at the outlet, of the carbon fiber rod, so that the end, located at the outlet, of the carbon fiber rod is expanded, and connection between the carbon fiber rod and the anchoring material is firmer.

Description

technical field [0001] The invention relates to the technical field of bridge carbon fiber cables, in particular to a carbon fiber cable with good anchoring effect and uniform stress. Background technique [0002] With the development of bridge structures with super-long spans, due to the large proportion of steel, the use of traditional steel cables will face problems such as limited limit spans, large cable sags, and low load-bearing efficiency. Stress corrosion is easy to occur, which makes the steel wires in the main cable and stay cables corroded very seriously. At present, the strength level of steel wire used in bridge cables has reached 2100MPa. Due to the limitations of steel and anchor materials, the strength of steel wire cables has reached the limit. The weight of carbon fiber cable is only about 1 / 5 of that of steel wire, its tensile strength can reach 3000MPa, and it has excellent properties such as corrosion resistance and fatigue resistance. It is very suita...

AI Technical Summary

Problems solved by technology

In the case of only axial force, there is no problem with the carbon fiber composite material itself, but when the carbon fiber rod is fanned out, it will form a bend, so that the carbon fiber rod needs to bear multi-directional stress, which is easy to cause the carbon fiber rod in the anchorage to be stressed The phenomenon of unevenness makes it only fixed by the anchor plate, which will lead to poor anchoring effect and easy to cause the problem of cable anchorage failure

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