A connection device for fiber composite tendons

Abstract

The invention provides a connecting device for fiber composite material ribs. The connecting device comprises a cylindrical sleeve, an adhesive capsule, a curing agent capsule and two anchoring devices, wherein a cavity is formed inside the cylindrical sleeve; through holes are formed in two ends of the cylindrical sleeve; the adhesive capsule and the curing agent capsule inside the cavity are respectively filled with an adhesive and a curing agent; connecting ends of two fiber composite material ribs extend into the cavity; the two anchoring devices are respectively fixed at connecting ends of the two fiber composite material ribs, and are used for breaking the adhesive capsule and the curing agent capsule after the connecting ends of the two fiber composite material ribs extend into the cavity. By adopting the connecting device, the problem that fixed connection of fiber composite material ribs is failed as iron wires are rusted can be avoided while longitudinal connection of the two fiber composite material ribs is completed, and meanwhile the problem that the surface structures of the fiber composite material ribs are damaged as centralized shearing force can be resulted from a bundling mode to the fiber composite material ribs can be also avoided, so that the properties of the fiber composite material ribs are improved, and the service lives of the fiber composite material ribs are prolonged.

Description

technical field [0001] The present application relates to the technical field of engineering and construction, and in particular, to a connecting device for fiber composite bars. Background technique [0002] Reinforced concrete structure is the most widely used structural form in engineering construction. In the construction of reinforced concrete structures, it is sometimes necessary to connect several reinforcing ribs longitudinally to meet the bearing capacity and use requirements of some special building structures. [0003] Steel bars and concrete are the main materials used in infrastructure construction in recent years, but the corrosion and performance deterioration of reinforced concrete structures and steel structures are becoming more and more serious, among which the corrosion of steel bars is the most common problem. The above problems not only affect the normal use and life of the building structure, but also cause a large number of safety accidents or hidden...

AI Technical Summary

Problems solved by technology

[0007] On the one hand, although the corrosion resistance of fiber composite bars is better than that of steel bars, the corrosion resistance of iron wire is similar to that of steel bars, so it is inevitable that the fixed connection between fiber composite bars will fail due to the corrosion of iron wires, thus making The reinforcement tends to fail at the fixed connection between the fiber composite reinforcement, which in turn causes a significant drop in the bearing capacity of the concrete structure;

[0008] On the other hand, the bearing capacity of fiber composite bars is weak in the direction perpendicular to the fiber axis, and when the bound iron wires are rigidly fixed to the fiber composite bars, they will form an approximate relationship with the fiber composite bars. The contact mode of line contact and the resulting concentrated shear force will cause damage to the surface structure of the fiber composite reinforcement and reduce the performance and service life of the fiber composite reinforcement

[0009] Therefore, the rebar-to-rebar butt joint method used in the prior art cannot be applied to the on-site construction of fiber composite bars

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