CN201296899Y - Anti-corrosive structure of anchor device - Google Patents
Anti-corrosive structure of anchor device Download PDFInfo
- Publication number
- CN201296899Y CN201296899Y CNU2008200383206U CN200820038320U CN201296899Y CN 201296899 Y CN201296899 Y CN 201296899Y CN U2008200383206 U CNU2008200383206 U CN U2008200383206U CN 200820038320 U CN200820038320 U CN 200820038320U CN 201296899 Y CN201296899 Y CN 201296899Y
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- anchor slab
- storage tank
- oil storage
- anchor plate
- hole
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Abstract
The utility model relates to an anti-corrosive structure of an anchor device, comprising an anchor plate (6), a clamping piece (7) and anti-corrosive grease (5), wherein, a plurality of through holes are arranged inside the anchor plate (6); the back section of the through hole is of a straight hole, and the front section of the through hole is of a taper hole; the clamping piece (7) clamps a steel stranded wire (1) and then is wedged in the taper hole of the anchor plate, and the front end of the clamping piece (7) is exposed. The anti-corrosive structure is characterized in that an oil storage tank (4) is concavely arranged on the back end face of the anchor plate (6), and an oil filling opening (3) is radially arranged at the back end of the anchor plate (6) in the direction from the periphery of the anchor plate (6) to the oil storage tank (4); the oil filling opening (3) is communicated with the oil storage tank (4), and a sealing device (2) is arranged outside the oil storage tank (4) at the back end of the anchor plate (6); the anti-corrosive grease (5) is filled in the oil storage tank (4) at the back end of the anchor plate (6) and on the exposed clamping piece (7) at the front end of the anchor plate (6). The utility model has simple structure, good anti-corrosive effect and convenient use, and can be widely used for steel stranded wire clamping piece group anchor in projects such as cable-stayed bridge, external tendon, ground anchorage and the like.
Description
Technical field
The utility model relates to a kind of steel strand intermediate plate group anchor, relates in particular to a kind of anticorrosion structure of steel strand intermediate plate group anchor.Belong to the road and bridge technical field.
Background technology
Steel strand intermediate plate group anchor mainly is made up of anchor slab and intermediate plate, and wherein intermediate plate is two or three-chip type, and its profile is a cone, and endoporus generally is processed into the inverted triangle screwed hole; A plurality of taper holes are arranged on the anchor slab.Steel strand utilize the wedge action between intermediate plate and the anchor slab taper hole that the prestressing force that is applied to steel strand is kept with after the intermediate plate clamping and applying prestressing force.
For avoiding prestressed failure, key is to solve the main member in the prestressed structure---the corrosion problem of steel strand and ground tackle.At present, the anticorrosive steel strand of existing various ways occurs, and the problem of steel strand corrosion can be solved substantially.Therefore, the anticorrosion problem of ground tackle just becomes a difficult problem relatively more outstanding in the prestressing technique.The ground tackle appearance generally adopts grease or paint to carry out anticorrosive coating.Ground tackle inside, especially anchor slab taper hole, taper hole inner clamp piece and steel strand are subjected to the preservative treatment of intermediate plate retaining part, generally be with press oily equipment will build grease from intermediate plate clamp-on carry out in the anchor slab hole anticorrosion.Decompose because the building grease is easily aging, and the grease amount of clamp-oning is difficult to control, so this antiseptic effect is not good.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of anchorage corrosion protection structure is provided, and ground tackle inside is sealed fully, prevents that aqueous vapor or other corrosive medium from entering, and fundamentally solves the anticorrosion problem of ground tackle.
The purpose of this utility model is achieved in that a kind of anchorage corrosion protection structure, comprise anchor slab, intermediate plate and anticorrosion grease, described anchor slab inside is provided with a plurality of through holes, the back segment of described through hole is a straight hole, the leading portion of through hole is a taper hole, and described intermediate plate is wedged in the taper hole of anchor slab behind the clamping steel strand, the intermediate plate front end exposes, and it is characterized in that:
Be concaved with oil storage tank on the end face of described anchor slab rear end, the anchor slab rear end radially offers pouring orifice from the anchor slab outer rim to the oil storage tank direction, and this pouring orifice is connected with described oil storage tank,
Described anchor slab rear end oil storage tank external fixation has sealing device,
Oil storage tank and anchor slab front end that described anticorrosion grease injects the anchor slab rear end expose the intermediate plate place.
Steel strand through stretch-draw and by the intermediate plate anchoring after, in the oil storage tank of anchor slab rear end, inject anticorrosion grease, expose the intermediate plate place at the anchor slab front end, all with the anticorrosion grease shutoff of fusion, treat that anticorrosion grease solidifies after, between oil storage tank and anchor slab front end intermediate plate exsertion part, form the sealing separate space, aqueous vapor and other corrosive medium can not enter this space, thereby make the wedging position of taper hole of taper hole, intermediate plate and the anchor slab of anchor slab, and steel strand all are protected by the position of intermediate plate clamping; Application is painted at other position at anchor slab, makes each position of ground tackle all be in the anti-corrosion protection state, thereby realizes the reliably anticorrosion of ground tackle.
In addition, it is the compound of 18～40 mineral oil that anticorrosion grease of the present utility model adopts paraffin and carbon number, and the mixed weight of the two is than being paraffin: carbon number is 18～40 mineral oil=1:2～4.This anticorrosion grease normal temperature is semisolid, the fusing of heating back down.This grease is difficult for aging the decomposition, and the grease amount of clamp-oning is easy to control, so this grease antiseptic effect is good.
Description of drawings
Fig. 1 is the work schematic diagram of anchorage corrosion protection structure in the past.
Fig. 2 is the work schematic diagram of the utility model anchorage corrosion protection structure.
Among the figure: steel strand 1, sealing device 2, pouring orifice 3, oil storage tank 4, anticorrosion grease 5, anchor slab 6, intermediate plate 7.
The specific embodiment
As shown in Figure 2, the anchorage corrosion protection structure that the utility model relates to mainly is made up of anchor slab 6, intermediate plate 7, sealing device 2 and anticorrosion grease 5.
Described anchor slab 6 inside are provided with a plurality of through holes, and the back segment of described through hole is a straight hole, and the leading portion of through hole is a taper hole,
Described intermediate plate 7, in the taper hole of clamping steel strand 1 back wedging anchor slab, intermediate plate 7 front ends expose,
Be concaved with oil storage tank 4 on the described anchor slab 6 rear end end faces, anchor slab 6 rear ends radially offer pouring orifice 3 from anchor slab 6 outer rims to oil storage tank 4 directions, and this pouring orifice 3 is connected with described oil storage tank 4,
Described sealing device 2 is made of a rubber tile and a laminating metal plate, and wherein metal sheet places the rubber tile outside, and described sealing device 2 usefulness screws and anchor slab 6 rear ends are fixed,
Described anticorrosion grease 5 exposes intermediate plate 7 places by the pouring orifice 3 injection oil storage tanks 4 and injection anchor slab 6 front ends of anchor slab 6 rear ends.
After steel strand 1 stretch-draw, intermediate plate 7 clamping steel strand 1, the taper hole part wedging anchoring of intermediate plate 7 and anchor slab 6.Inject oil storage tanks 4 with the anticorrosion grease 5 of oil gun after by pouring orifice 3 with heat fused, in anchor slab 6 front end intermediate plates 7 exposed sections, all use the wax-oil mixture shutoff of fusion, treat that anticorrosion grease solidifies after, between oil storage tank 4 and anchor slab 6 front end intermediate plates 7 exsertion parts, form the sealing separate space; Application is painted at other position at anchor slab 7.
Claims (2)
1, a kind of anchorage corrosion protection structure, comprise anchor slab (6), intermediate plate (7) and anticorrosion grease (5), described anchor slab (6) inside is provided with a plurality of through holes, the back segment of described through hole is a straight hole, the leading portion of through hole is a taper hole, and described intermediate plate (7) is in the taper hole of clamping steel strand (1) back wedging anchor slab, intermediate plate (7) front end exposes, and it is characterized in that:
Be concaved with oil storage tank (4) on the end face of described anchor slab (6) rear end, anchor slab (6) rear end radially offers pouring orifice (3) from anchor slab (6) outer rim to oil storage tank (4) direction, and this pouring orifice (3) is connected with described oil storage tank (4),
Described anchor slab (6) rear end oil storage tank (4) external fixation has sealing device (2),
The oil storage tank (4) of described anticorrosion grease (5) injection anchor slab (6) rear end and anchor slab (6) front end expose intermediate plate (7) to be located.
2, a kind of anchorage corrosion protection structure according to claim 1 is characterized in that: described sealing device (2) is made of a rubber tile and a laminating metal plate, and wherein metal sheet places the rubber tile outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200383206U CN201296899Y (en) | 2008-06-16 | 2008-06-16 | Anti-corrosive structure of anchor device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200383206U CN201296899Y (en) | 2008-06-16 | 2008-06-16 | Anti-corrosive structure of anchor device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201296899Y true CN201296899Y (en) | 2009-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200383206U Expired - Fee Related CN201296899Y (en) | 2008-06-16 | 2008-06-16 | Anti-corrosive structure of anchor device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201296899Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939420A (en) * | 2010-03-26 | 2013-02-20 | Vsl国际股份公司 | Sealing arrangement |
| CN103290843A (en) * | 2013-06-04 | 2013-09-11 | 北京工业大学 | Pre-stressed pressure-type anti-floating anchor with spiral stirrup |
| CN104060525A (en) * | 2014-06-28 | 2014-09-24 | 江苏省交通科学研究院股份有限公司 | Additional anchoring device for steel strand clip anchor and tensioning tool and installation method for same |
| CN105089049A (en) * | 2015-09-06 | 2015-11-25 | 长江勘测规划设计研究有限责任公司 | Anchor cable outer anchor head steel strand protective device and installation method thereof |
| CN105442597A (en) * | 2015-12-25 | 2016-03-30 | 中铁十四局集团第二工程有限公司 | Self-supercharging anchor cable and construction method thereof |
| CN111550555A (en) * | 2020-05-18 | 2020-08-18 | 海盐建浩金属股份有限公司 | Ground tackle protection casing |
-
2008
- 2008-06-16 CN CNU2008200383206U patent/CN201296899Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102939420A (en) * | 2010-03-26 | 2013-02-20 | Vsl国际股份公司 | Sealing arrangement |
| CN102939420B (en) * | 2010-03-26 | 2016-06-08 | Vsl国际股份公司 | Sealing device |
| CN103290843A (en) * | 2013-06-04 | 2013-09-11 | 北京工业大学 | Pre-stressed pressure-type anti-floating anchor with spiral stirrup |
| CN104060525A (en) * | 2014-06-28 | 2014-09-24 | 江苏省交通科学研究院股份有限公司 | Additional anchoring device for steel strand clip anchor and tensioning tool and installation method for same |
| CN105089049A (en) * | 2015-09-06 | 2015-11-25 | 长江勘测规划设计研究有限责任公司 | Anchor cable outer anchor head steel strand protective device and installation method thereof |
| CN105089049B (en) * | 2015-09-06 | 2017-05-10 | 长江勘测规划设计研究有限责任公司 | Anchor cable outer anchor head steel strand protective device and installation method thereof |
| CN105442597A (en) * | 2015-12-25 | 2016-03-30 | 中铁十四局集团第二工程有限公司 | Self-supercharging anchor cable and construction method thereof |
| CN111550555A (en) * | 2020-05-18 | 2020-08-18 | 海盐建浩金属股份有限公司 | Ground tackle protection casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090826 Termination date: 20160616 |