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Composite connector for FRP bars and assembly method thereof

An assembly method and composite technology, applied in the direction of structural elements, building components, building reinforcements, etc., can solve problems such as inapplicability, and achieve the effects of convenient implementation, reasonable design and firm bonding

Pending Publication Date: 2018-11-13
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional connection methods for steel such as welding and mechanical connection are not suitable for FRP bars

Method used

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  • Composite connector for FRP bars and assembly method thereof
  • Composite connector for FRP bars and assembly method thereof
  • Composite connector for FRP bars and assembly method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A method for assembling the above-mentioned composite connector for FRP bars, comprising the following steps:

[0049] Step 1. Extend the contact part of the FRP rib and the hexagon head bolt to a certain length and paste the arc-shaped soft metal gasket;

[0050] Step 2. After the arc-shaped soft metal gasket is glued tightly, insert two sections of FRP bars from the two ports of the steel sleeve respectively, and turn the FRP bars to adjust the position of the arc-shaped soft metal gasket; make the ends of the two sections of FRP bars The part is located in the middle of the steel sleeve, so that the insertion lengths of the two FRP bars are the same; and a hexagon head bolt with a bolt washer is screwed on each bolt hole at both ends to fix the bar to prevent it from sliding;

[0051] Step 3: Set the plug washer on the stainless steel plug, pass the two stainless steel plugs through the two sections of FRP ribs respectively, screw the stainless steel plug to make it ...

Embodiment 2

[0056] A method for assembling the above-mentioned composite connector for FRP bars, comprising the following steps:

[0057] Step 1. Extend the contact part of the FRP rib and the hexagon head bolt to a certain length and paste the arc-shaped soft metal gasket;

[0058] Step 2. After the arc-shaped soft metal gasket is glued tightly, coat the inner walls of multiple pre-tightening sleeves with epoxy resin glue and evenly set them on the FRP bars; install two sections of FRP bars from the two ports of the steel sleeve respectively. Insert and turn the FRP bars to adjust the position of the arc-shaped soft metal gasket; make the ends of the two sections of FRP bars be located in the middle of the steel sleeve, so that the insertion lengths of the two sections of FRP bars are the same; and screw at the bolt holes at each end A hexagon head bolt covered with a bolt washer is used to fix the reinforcement to prevent it from sliding; the multiple pre-tightening sleeves are elastic ...

Embodiment 3

[0064] A method for assembling the above-mentioned composite connector for FRP bars, comprising the following steps:

[0065] Step 1. Extend the contact part of the FRP rib and the hexagon head bolt to a certain length and paste the arc-shaped soft metal gasket;

[0066] Step 2. After the arc-shaped soft metal gasket is glued tightly, insert two sections of FRP bars from the two ports of the steel sleeve respectively, and turn the FRP bars to adjust the position of the arc-shaped soft metal gasket; make the ends of the two sections of FRP bars The part is located in the middle of the steel sleeve, so that the insertion lengths of the two FRP bars are the same; and a hexagon head bolt with a bolt washer is screwed on each bolt hole at both ends to fix the bar to prevent it from sliding;

[0067] Step 3: Set the plug washer on the stainless steel plug, pass the two stainless steel plugs through the two sections of FRP ribs respectively, screw the stainless steel plug to make it ...

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Abstract

The invention discloses a composite connector for FRP bars and an assembly method thereof. The composite connector comprises a steel sleeve. An inner thread is arranged on the inner wall of the steelsleeve. A fiber cloth is winded on the outer wall of the steel sleeve. The steel sleeve is provided with a plurality of bolt holes communicating with the inner wall. Hexagon-head bolts are connected into the bolt holes in a matching mode. Two sections of the FRP bars are arranged in the steel sleeve, and are fixed by fastening the hexagon-head bolts. Arc soft metal gaskets are annually attached atthe positions, located in the bolt holes, of the two sections of the FRP bars. Stainless steel screwed plugs are detachably arranged at two ends of the steel sleeve. Cementation glue is arranged between the inner wall of the steel sleeve and the FRP bars in a filling mode. The connector is simple in structure, reasonable in design, convenient to use, and can be universally applied to engineering.The glue is arranged in the steel sleeve to paste the bars and the sleeve. Bolts are used outside the sleeve for anchoring, and therefore the connector can be more firmly pasted to the bars, and connection of the bars is facilitated.

Description

technical field [0001] The invention belongs to the field of civil engineering FRP bar concrete structures, in particular to a composite connector for FRP bars and an assembly method thereof. Background technique [0002] Fiber-reinforced composites (FRP) have the advantages of high tensile strength, light weight, corrosion resistance, and a thermal expansion coefficient close to that of concrete. Since its inception, it has been widely recognized and applied in the field of civil engineering, and has gradually become a research hotspot in this field. . The production process of FRP bars is mainly made by pultrusion of matrix materials such as fiber-reinforced unsaturated polyester, epoxy resin and phenolic resin, and has thermosetting properties. Because the molecular structure of the thermosetting matrix material is easy to decompose when heated, and the FRP tendon has low shear strength and is brittle, so the thermosetting FRP tendon is prone to fiber shearing and stress...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/16
CPCE04C5/165
Inventor 贾彬刘祥黄辉杨丹廉杰
Owner SOUTHWEAT UNIV OF SCI & TECH
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