CN206608186U - A kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt - Google Patents
A kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt Download PDFInfo
- Publication number
- CN206608186U CN206608186U CN201720360562.6U CN201720360562U CN206608186U CN 206608186 U CN206608186 U CN 206608186U CN 201720360562 U CN201720360562 U CN 201720360562U CN 206608186 U CN206608186 U CN 206608186U
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- China
- Prior art keywords
- bolt body
- carbon fiber
- bolt
- nut
- galvanizing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model discloses a kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt, including bolt body, bolt body is shaped as Curved, it is thread termination in one end of bolt body, it is nut in the other end of bolt body, described bolt body, thread termination and nut is made of steel former material, its feature is externally provided with epoxy resin tack coat in bolt body, carbon fiber clad is externally provided with epoxy resin tack coat, zinc coat is provided with the outline of nut, zinc coat is externally provided with thread termination.A kind of carbon fiber cladding processing and galvanizing complex method are applied in one kind of tunnel duct piece connecting bolt surface anticorrosion water-proofing treatment.Efficiently solve current conventional treatment mode not environmentally, be the innovation of a product anticorrosion processing technology of Shield Method Tunnel for Metro construction field composition component the problems such as not wear-resisting, processing technology is complicated, service life is short.
Description
Technical field
The utility model is related to shield driven Metro tunnel construction equipment field, and in particular to one kind connection precast concrete pipe
The bolt of piece is by the steel former material of connecting bolt, epoxy resin tack coat and is wrapped in the peripheral carbon fiber clad of former material
Composition.
Background technology
As various regions large- and-medium size cities metro project starts successively, shield method is determined definitely in city tunnel construction
Dominant position, someone is referred to as city tunnel engineering method.The design of 100 years is clearly proposed in the metro design code of China
Life-span, but it is to ensure that the century-old life-span of subway, it is necessary to the anti-corrosion of underground concrete structure particularly shield duct piece is solved first
Waterproof problem.Each big city in coastal environments, most places are to move back the land formed behind sea, and groundwater quality contains largely
SO4 2-、Mg2+、Cl-, and concentration severe overweight, some areas environmental activity grade is in more than D grades, category heavy corrosion.Therefore,
While shield duct piece concrete density is ensured, it is necessary to the reinforcing anti-corrosion waterproof outside being carried out to shield duct piece, and shield
Connector between section of jurisdiction is as the important composition of whole assembling system, and reinforcing anti-corrosion is more important, if at the surface of bolt
Reason fails to reach design requirement, the phenomenon such as cause bolt to get rusty in use, and spiral shell will be had influence on by eroding to behind bolt inside
The mechanical performance and its tensile strength of bolt.At present, the conventional surface treatment of segment bolt has：Galvanizing（Galvanizing）, Dacroment
（It is commonly called as：Zinc-base chromate）, powder zincizing, multiple elements design powder zincizing etc., most common of which is the dacroment process.But up to gram
Sieve processing mode has many weak points, such as：1. containing to environment and the harmful chromium ion of human body, especially hexavalent chromium tool
There is carcinogenesis.2. the sintering temperature of Dacroment is higher, the time is longer, energy consumption is big.3. the case hardness of Dacroment is not high, wear-resisting
Property bad, influence products surface quality and antiseptic property, rubbed during the connection construction connector poling of section of jurisdiction with reserved hole wall
Wiping causes coating damage etc..Therefore, the actual life of Dacromet/steel bolt only has 3 years or so time, will after 3 years
Bolt is changed successively, causes tunnel maintenance cost to be greatly enhanced.Based on background above, the utility model proposes use
Carbon fiber is coated and galvanizing handles the innovation that the scheme combined replaces conventional anti-corrosive processing mode in the market.
The content of the invention
The purpose of this utility model is to be to provide that a kind of anti-corrosive properties are strong, wearability is good, easy processing, the tunneltron of low cost
Piece connecting bolt, and fix lining cutting annulus with this bolt（Also known as section of jurisdiction）, to strengthen shield duct piece shoring system anti-corrosion waterproof, prolong
Long subway tunnel service life, reduces the target of subway tunnel maintenance cost.
The purpose of this utility model is achieved in that a kind of described carbon fiber cladding and the connection of galvanizing composite high-strength
Bolt, including bolt body, bolt body are shaped as Curved, are thread termination in one end of bolt body, in bolt sheet
The other end of body is nut, and described bolt body, thread termination and nut is made of steel former material, it is characterised in that
Bolt body is externally provided with epoxy resin tack coat, and carbon fiber clad is externally provided with epoxy resin tack coat, in the foreign steamer of nut
Exterior feature is provided with zinc coat, and zinc coat is externally provided with thread termination.
A kind of lining cutting annulus, including calibrated bolck, adjacent block and the block that binds, it is characterised in that adjacent calibrated bolck, adjacent
It is connected between adjacent block with pad with above-mentioned carbon fiber cladding and galvanizing composite high-strength connecting bolt.
It is made up of the steel former material of connecting bolt, epoxy resin tack coat, carbon fiber clad, thread termination and high-strength
Nut uses galvanizing coating treatment.Its processing method, comprises the following steps:
1）Steel former material is intercepted by design size；
2）Steel former material thread, feather plucking processing, bent into shape；
3）Brushwork epoxy resin tack coat；
4）Carbon fiber clad composite material is wrapped up；
5）Heat carbonization treatment.
6）Thread termination and high-strength nut galvanizing processing.
Advantage of the present utility model：1. anti-corrosion leak-proof performance is strong, carbon fiber in itself in underground water even seawater substantially not
Corroded, there is enough compactness again with the composite after resin-bonded, permeability is extremely low, and connector steel is protected very well
Matter former material；2. carbon fiber cover surface extreme hardness, the hardness of its composite clad is the hundred of Dacromet/steel hardness
More than times, therefore wearability is very high, and in poling work progress, superficial layer is not damaged, and greatly improves the use of connector
In the life-span, reduce tunnel maintenance cost；3. carbon fiber clad has the good stress such as higher tension, shearing strength in itself
Performance, after being combined with steel former material, can be greatly improved the stress performance of connector., can be with 4. carbon fiber clad easy processing
After disposably being wrapped up using composite, as long as being heated to 150 DEG C of shapings that can be carbonized；5. using carbon fiber coat processing into
This is only more slightly higher than Dacroment, has larger cost advantage compared with using stainless steel；6. use galvanizing termination and spiral shell
The mode of cap Combined Processing, processing procedure is simple, easy construction, later maintenance cost are low.
Brief description of the drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is Fig. 1 A-A profiles.
Fig. 3 is the partial structural diagram that the utility model is applied to lining cutting annulus.
Embodiment
As shown in Figure 1 and Figure 2, a kind of carbon fiber cladding described in the utility model and galvanizing composite high-strength connecting bolt,
Including bolt body 1, bolt body 1 is shaped as Curved, is thread termination 5 in one end of bolt body, in bolt body
The other end be nut 4, described bolt body 1, thread termination 5 and nut 4 are made of steel former material, it is characterised in that
Epoxy resin tack coat 2 is externally provided with bolt body 1, carbon fiber clad 3 is externally provided with epoxy resin tack coat 2, in nut 4
Outline be provided with zinc coat 7, be externally provided with zinc coat 6 in thread termination 5.
The processing method of a kind of carbon fiber cladding described in the utility model and galvanizing composite high-strength connecting bolt, including
Following steps:
1）Steel former material is intercepted by design size；
2）Steel former material thread, feather plucking processing, bent into shape；
3）Brushwork epoxy resin formation epoxy resin tack coat 2；
4）In the outer progress carbon fibre composite parcel of epoxy resin tack coat 2；
5）150 DEG C of carbonization treatment formation carbon fiber clads 3 of heating.
6）Thread termination and nut form zinc coat using galvanizing processing.
As shown in figure 3, being applied to the partial cutaway structural representation of lining cutting annulus, lining cutting annulus 9 for the utility model（Also known as
Section of jurisdiction）Including calibrated bolck, adjacent block and the block that binds, with described in the utility model between adjacent calibrated bolck, adjacent adjacent block
A kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt 8 be connected.
Claims (2)
1. a kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt, including bolt body, being shaped as bolt body are curved
It is curved, it is thread termination in one end of bolt body, is nut, described bolt body, thread in the other end of bolt body
Termination and nut are made of steel former material, it is characterised in that epoxy resin tack coat is externally provided with bolt body, in asphalt mixtures modified by epoxy resin
Fat tack coat is externally provided with carbon fiber clad, is provided with zinc coat in the outline of nut, zinc coat is externally provided with thread termination.
2. a kind of lining cutting annulus, including calibrated bolck, adjacent block and the block that binds, it is characterised in that adjacent calibrated bolck, adjacent neighbour
Carbon fiber cladding and galvanizing composite high-strength connecting bolt between block with pad and described in claim 1 is connect to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720360562.6U CN206608186U (en) | 2017-04-07 | 2017-04-07 | A kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720360562.6U CN206608186U (en) | 2017-04-07 | 2017-04-07 | A kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206608186U true CN206608186U (en) | 2017-11-03 |
Family
ID=60174228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720360562.6U Expired - Fee Related CN206608186U (en) | 2017-04-07 | 2017-04-07 | A kind of carbon fiber cladding and galvanizing composite high-strength connecting bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206608186U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253117A (en) * | 2018-12-03 | 2020-06-09 | 沈阳市政地铁管片有限公司 | Anti-erosion and anti-corrosion concrete shield segment |
-
2017
- 2017-04-07 CN CN201720360562.6U patent/CN206608186U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111253117A (en) * | 2018-12-03 | 2020-06-09 | 沈阳市政地铁管片有限公司 | Anti-erosion and anti-corrosion concrete shield segment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20210407 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |