A multi-purpose connector, anchor head and assembly for frp tendon connection

Abstract

The invention discloses a multi-purpose connector, an anchor head and an assembly used for connecting FRP bars. The multi-purpose connector includes a bar connecting pipe with one end closed, a connecting piece arranged at the closed end of the bar connecting pipe, and a The connecting piece pin hole on the connecting piece, the other end of the reinforcing material connecting pipe is provided with a fastening joint, the inside of the reinforcing material connecting pipe is provided with an inner surface thread matching the external thread of the FRP reinforcing material, and the connecting piece pin hole is provided with a internal teeth. The anchor head includes an anchor head body, a connecting body arranged at one end of the anchor head body, and a connecting body pin hole arranged on the connecting body, and internal teeth are arranged on the connecting body pin hole. The assembly is a combined connection of a multi-purpose connector and an anchor head, or a combined connection of two multi-purpose connectors. The invention can freely connect thermosetting fiber reinforcements and process them into 90° bent anchorage ends, stirrups, bent reinforcements, curved prestressed reinforcements with large curvatures or broken line prestressed reinforcements and special-shaped components.

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

Images