CN206693510U

CN206693510U - A kind of device for FRP tendons connection

Info

Publication number: CN206693510U
Application number: CN201720413348.2U
Authority: CN
Inventors: 李劲松; 刘华新; 柳亚男; 尹甜甜; 张志金; 彭长岭
Original assignee: Liaoning University of Technology
Current assignee: Liaoning University of Technology
Priority date: 2017-04-19
Filing date: 2017-04-19
Publication date: 2017-12-01
Anticipated expiration: 2027-04-19

Abstract

A kind of device for FRP tendons connection, it is related to a kind of apparatus for building, described device includes fiber sleeve and fibrofelt；FRP tendons end wraps up 2 ~ 3 layers with fibrofelt, then is coated by epoxide-resin glue, is screwed into sleeve pipe, and the internal thread matched with FRP tendons lines is provided with fiber sleeve, and fibrofelt wraps up 2 ~ 3 layers in FRP tendons end；The angle of fiber sleeve is arranged to 30 °, 45 °, 60 °, 90 °, 120 °, 135 °, 150 °, 180 °.The purpose of parcel fibrofelt is to prevent FRP tendons from brittle break and increase and the bond area of FRP tendons occurring during fiber sleeve is screwed into.The utility model can efficiently solve FRP tendons in engineer applied because it is not pliable but the problem of need connection, provide a kind of new direction for further application of the performance FRP tendons in engineering.

Description

A kind of device for FRP tendons connection

Technical field

A kind of apparatus for building is the utility model is related to, more particularly to a kind of device for FRP tendons connection.

Background technology

Fibre reinforced composites（FRP）With tensile strength is high, light, corrosion-resistant, thermal coefficient of expansion and concrete connect The advantages that near, since the advent of the world has obtained extensive approval and application in field of civil engineering, and is increasingly becoming grinding for the field Study carefully focus.The production technology of FRP tendons mainly passes through the matrix materials such as fiber reinforcement unsaturated polyester, epoxy resin and phenolic resin Material pultrusion forms, and has thermosetting.Easily decomposed because thermo set matrix material molecular structure is heated, and FRP tendons shearing strength is low, Matter itself is crisp, so fiber cutting and stress concentration phenomenon easily occur after the bending of thermosetting FRP tendons, can not arbitrarily change after shaping Its shape.Therefore when being processed into the finished product that various constructions need there is bottleneck in FRP tendons, and this just need to be by some special folders Tool completes the connection of FRP tendons, anchoring etc. with anchorage, it is therefore desirable to which a kind of device connected for FRP tendons further plays FRP value.

The content of the invention

The purpose of this utility model is to provide a kind of device for FRP tendons connection, and the device be directed to FRP tendons, use Same fibre reinforced composites are attached, and FRP tendons are overcome in practical engineering application, because of the needs material of connection itself The problem of can not being bent caused by characteristic, so as to improve working effect.

The purpose of this utility model is achieved through the following technical solutions：

A kind of device for FRP tendons connection, described device include fiber sleeve and fibrofelt；FRP tendons end fiber Felt wraps up 2 ~ 3 layers, then is coated by epoxide-resin glue, is screwed into sleeve pipe, is provided with what is matched with FRP tendons lines in fiber sleeve Internal thread, fibrofelt wrap up 2 ~ 3 layers in FRP tendons end；The angle of fiber sleeve respectively can be set 30 °, 45 °, 60 °, 90 °, 120°、135°、150°、180°。

A kind of described device for FRP tendons connection, epoxy resin is injected in the fiber sleeve.

The advantages of the utility model is with effect：

The utility model is in order to overcome FRP tendons in practical engineering application, because the needs material property of connection itself is made Into the problem of can not bending.The utility model is carried out primarily directed to FRP tendons, therefore using same fibre reinforced composites Connection, has more preferable collaborative work effect, implements simultaneously, because being all that finished product also seems convenient.

（1）The utility model solves can not bend caused by FRP tendons material property itself in engineering, and actual Using when again need bending the problem of, while solve easily occur when FRP tendons are screwed into fiber sleeve stress concentration destroy FRP tendons The problem of.

（2）When producing the device in enormous quantities, because fiber sleeve plasticity is good, can produce according to the actual requirements.

（3）Device design of the present utility model is simple, easy to implement, can be widely applied in engineering.

Brief description of the drawings

Fig. 1：45 ° of attachment means of the utility model；

Fig. 2：90 ° of attachment means of the utility model；

Fig. 3：135 ° of attachment means of the utility model；

Fig. 4：180 ° of attachment means of the utility model.

Label in figure：1-fiber sleeve；2-fibrofelt；The internal thread matched in 3-fiber sleeve with FRP tendons lines； 4-FRP tendons.

Embodiment

The utility model is described in detail illustrated embodiment below in conjunction with the accompanying drawings.

A kind of device for FRP tendons connection of the utility model, including fiber sleeve and fibrofelt.FRP tendons end is used Fibrofelt wraps up 2 ~ 3 layers, then is screwed into after epoxide-resin glue is handled in sleeve pipe, and the purpose for wrapping up fibrofelt is to prevent Brittle break and increase and the bond area of FRP tendons occur during sleeve pipe is screwed into for FRP tendons.It can efficiently solve FRP tendons in engineer applied because that can not bend but the problem of need connection, further to play application of the FRP tendons in engineering Provide a kind of new direction.In order that FRP tendons can be convenient and safe be screwed into sleeve pipe and preferably allow FRP tendons to be glued with fiber sleeve Knot, therefore the internal thread matched with FRP tendons lines is provided with the fiber sleeve, while described fibrofelt is at FRP tendons end Wrap up 2 ~ 3 layers in portion；In order to meet most demand in engineering, the angle of fiber sleeve can be respectively set to as needed 30 °, 45°、60°、90°、120°、135°、150°、180°。

Embodiment

Such as Fig. 1 ~ 4,45 °, 90 °, 135 ° and 180 ° of connection sleeve pipe has been set out.First by the end fibrofelt of FRP tendons 4 22 ~ 3 layers of parcels, while also need to be handled one time with epoxide-resin glue, treat that epoxide-resin glue solidifies, be then screwed into fiber sleeve In 1, hole finally is filled up toward the inner injection epoxy resin of fiber sleeve 1 again, same method is fine by another end of FRP tendons 4 Tie up felt 2 and wrap up 2 ~ 3 layers, while handled one time with epoxide-resin glue, treat that epoxide-resin glue solidifies, be then screwed into fiber sleeve 1 other end, finally fill up hole toward the inner injection epoxide-resin glue of fiber sleeve 1 again.

Claims

1. a kind of device for FRP tendons connection, it is characterised in that described device includes fiber sleeve and fibrofelt；FRP tendons end Portion wraps up 2 ~ 3 layers with fibrofelt, then is coated by epoxide-resin glue, is screwed into sleeve pipe, is provided with and FRP tendons line in fiber sleeve The internal thread of road matching, fibrofelt wrap up 2 ~ 3 layers in FRP tendons end；The angle of fiber sleeve respectively can be set 30 °, 45 °, 60°、90°、120°、135°、150°、180°。

2. a kind of device for FRP tendons connection according to claim 1, it is characterised in that noted in the fiber sleeve Enter epoxy resin.