Multipurpose connector, anchor head and assembly for connecting FRP (Fiber Reinforced Plastic) rebars

Abstract

The invention discloses a multipurpose connector, an anchor head and an assembly for connecting FRP (Fiber Reinforced Plastic) rebars. The multipurpose connector comprises a rebar connecting pipe, a connecting sheet, and a connecting sheet pin hole, wherein one end of the rebar connecting pipe is closed, the connecting sheet is arranged at the closed end of the rebar connecting pipe, the connecting sheet pin hole is formed in the connecting sheet, a fastening joint is arranged on the other end of the rebar connecting pipe, an internal surface thread matched with an external thread of an FRP rebar is arranged on the inner side of the rebar connecting pipe, and internal teeth are arranged on the connecting sheet pin hole. The anchor head comprises an anchor head body, a connecting body on one end of the anchor head body, and a connecting body pin hole in the connecting body, and internal teeth are arranged on the connecting body pin hole. The assembly is formed by combining and connecting the multipurpose connector with the anchor head, or combining and connecting two multipurpose connectors. According to the multipurpose connector, the anchor head and the assembly, the thermoset FRP rebars are freely connected, and can be processed into 90-degree bent anchoring ends, reinforcement stirrups, bend bars, large-curvature curve prestressed tendons or crease line prestressed tendons and irregular members.

Description

technical field [0001] The invention relates to a connection kit, in particular to an assembly used for FRP bar connection. Background technique [0002] The application technology of FRP (fiber reinforced composite material) bars in civil engineering has become a hotspot in the joint research and development of composite materials and civil engineering in the world today. At present, there are more and more applications and researches on FRP bars at home and abroad, which promote the continuous progress of modern civil engineering technology. [0003] With the release and implementation of "Technical Specifications for the Application of Fiber Reinforced Composite Materials in Construction Engineering" (GB50608-2010), FRP bars have been more commonly used in concrete structures to reinforce structures or as reinforcements, but the bars generally use the usual The FRP bars produced by pultrusion of matrix materials such as polyester, epoxy resin, vinyl ester, etc. are all t...

AI Technical Summary

Problems solved by technology

However, the performance cannot be compared with that of thermosetting pultruded bars

[0005] At present, the connection methods of fiber reinforcement are as follows: 1. The connection is made by injecting resin, cement and other adhesives into the casing, which is prone to brittle slip damage

2. Overlap connection, not suitable for tension members

3. The connection of the sleeve with internal thread requires high precision of the rod body and internal thread, which is easy to cause damage to the rod body

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