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Novel FRP rib adhesive type anchorage device with screw plug and mounting method of anchorage device

A bonded and screw plugging technology, applied in structural elements, building materials processing, building components, etc., can solve the problems of long anchor tube length, high cost, complicated processing, etc., to improve load-bearing capacity, strengthen constraints, The effect of low material requirements

Active Publication Date: 2014-12-24
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the length of the anchor tube of the existing FRP tendon bonded anchor is too large, and the improved bonded or clip-type anchor has complicated processing and high cost

Method used

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  • Novel FRP rib adhesive type anchorage device with screw plug and mounting method of anchorage device
  • Novel FRP rib adhesive type anchorage device with screw plug and mounting method of anchorage device
  • Novel FRP rib adhesive type anchorage device with screw plug and mounting method of anchorage device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: see Figure 1~4 A new type of FRP tendon tape screw plug bonded anchorage, including an anchor barrel 3 and an annular gasket, the two ends of the anchor barrel are respectively fixed with annular gaskets 5, 7, wherein, one end of the anchor barrel 3 is a free end, and the other end is a free end. For the tension end, the free end pastes the ring gasket 5, the tension end pastes the ring gasket 7, and also includes a screw plug 6, the screw plug 6 is threaded with the tension end of the anchor tube 3, and the ring gasket 5 and the ring gasket A central through hole for fitting FRP bars is respectively provided at the center of the sheet 7 , and the center of the ring gasket is located on the center line of the anchor cylinder 3 . The screw plug 6 is composed of a cylindrical section connected to the outer wall of the anchor tube 3, a diameter reducing section and a cylindrical boss section set on the outer surface of the FRP bar, and the screw plug 6 adopts a...

Embodiment 2

[0029] Embodiment 2: A method for installing the novel FRP tendon and plug-bonded bonded anchor containing the above-mentioned claim 1, comprising the following steps:

[0030] Step 1: Clean and derust the inside of the anchor barrel 3, and process the external thread 2 on the tensile end of the anchor barrel 3;

[0031] Step 2: Fix the ring gasket 5 on the free end surface of the anchor cylinder 3 and seal it;

[0032] Step 3: Put one end of the FRP tendon 1 into the screw plug 6;

[0033] Step 4: Fill the anchor tube 3 with adhesive from the tensile end of the anchor tube 3 until the inside of the anchor tube 3 is filled with the adhesive, and the glue filling is completed, and then set the FRP tendon 1 on one end of the screw plug 6 Insert the central through hole of the annular gasket 7 at the tension end into the anchor cylinder 3, so that its end enters the central through hole 8 of the annular gasket at the free end of the anchor cylinder 3;

[0034] Step 5: Fix the r...

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Abstract

The invention discloses a novel FRP (Fiber Reinforced Polymer) rib adhesive type anchorage device with a screw plug and a mounting method of the anchorage device. The anchorage device comprises an anchor drum and annular gaskets, wherein the annular gaskets are respectively adhered to the two ends of the anchor drum; the anchorage device further comprises the screw plug; the screw plug is in threaded connection with the pulled end of the anchor drum; a central through hole for mounting an FRP rib is formed in the center of each of the annular gaskets; the centers of the annular gaskets are positioned on a center line of the anchor drum. The FRP rib adhesive type anchorage device with the screw plug, disclosed by the invention, adopts the screw plug design at the end part to improve interaction between the anchor drum and the adhesive agent, enhance longitudinal sliding restraining of the adhesive agent, effectively prevent the adhesive agent from sliding out, and reduce the length of the anchorage device; compared with the conventional adhesion method on the anchorage device, the anchor drum with the same length can improve the bearing load; furthermore, the anchorage device is not required to be specially processed, low in material requirements, simple in structure, reasonable in design, convenient to use, simple in mounting technology, low in cost, and capable of increasing the anchorage efficiency as the screw plug is in threaded connection with the anchor drum.

Description

Technical field [0001] The present invention involves anchoring the tensile (cable) material in civil engineering, especially a new type of FRP ribs with snails to block the bonded anchor and its installation method. Background technique [0002] In the erosion environment, the reinforcement or prestressed steel twisted wire of the reinforced concrete structure is prone to rust, resulting in durability problems in the concrete structure.Fiber Reinforced Polymer (FRP) has the advantages of light quality, high -strength, corrosion resistance, low relaxation, and good anti -fatigue properties. FRP tendons are used as longitudinal tendons or prestressed tendons, which can improve concrete structures.The durability of the structure has good economic and social benefits. [0003] The FRP tendon is composed of two parts: fiber and polymer matrix. It belongs to the opposite sex materials, and its shear strength is far lower than the tensile strength.In the stretching test, the FRP tendon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/12E04G21/12
Inventor 高丹盈庞育阳莫飞房栋张普朱海堂赵科汤寄予
Owner ZHENGZHOU UNIV
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