CN205171836U - Prestressing without bondn ground tackle anticorrosion structure - Google Patents
Prestressing without bondn ground tackle anticorrosion structure Download PDFInfo
- Publication number
- CN205171836U CN205171836U CN201520974206.4U CN201520974206U CN205171836U CN 205171836 U CN205171836 U CN 205171836U CN 201520974206 U CN201520974206 U CN 201520974206U CN 205171836 U CN205171836 U CN 205171836U
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- CN
- China
- Prior art keywords
- anchor
- ground tackle
- rubber pad
- prestressing
- anticorrosive
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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.)
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Abstract
The utility model provides a prestressing without bondn ground tackle anticorrosion structure, is including being located the ground tackle anticorrosive device of end and the anchor slab of the anticorrosive device of ground tackle end and the seal structure that the anchor backing plate set up within a definite time on the anchor backing plate, promptly: still open the little recess of m strip respectively on the anchor slab of the anticorrosive ground tackle of no bonding muscle and anchor backing plate, scribbled the anticorrosive sealed glue of one deck between anchor slab and the anchor backing plate, M's value range is: M is 1, 2, 3, the arbitrary integer between 4. The anticorrosive device of ground tackle end includes connecting bolt, rubber pad, clamping piece, anchor slab, is used for covering protective sheath, the sealing bolt of the no bonding muscle end of having peeled off the PE cover and pours into the anticorrosive grease in sealing the oil cover, and the clamping piece anchor is on the anchor slab, and the rubber pad lies in between protective sheath and the anchor backing plate, anchor backing plate and rubber pad within a definite time, rubber pad and protective sheath has scribbled anticorrosive sealed glue. This structure has increased anticorrosive sealed glue at the contact surface of all parts, has effectively guaranteed the sealing performance of structure, and simple structure, construction convenience, fine solution the problem of the anticorrosive device of present no bonding muscle anchor head oil leak.
Description
Technical field
The utility model relates to a kind of prestressing without bondn anchorage corrosion protection structure.
Background technology
In the use procedure of external prestressing ground tackle, long-term and contacting external air, ground tackle and prestress wire are easy to corrosion problem occurs, thus cause loss of prestress, even lose efficacy, crisis structural safety.PE sheath well solves the Anticorrosion of external prestressing steel bundle, but stretch-draw section in two ends must remove PE sheath and grease, to guarantee being engaged of intermediate plate and steel strand.Therefore, the anticorrosion key issue become in external prestressing technique of the steel strand of ground tackle and two ends exposed part.Conventional bulk External prestressed anchorage corrosion protection generally adopts grease and paint to carry out preservative treatment to ground tackle outside, and seal with seal closure, grease is clamp-oned in anchor slab hole from intermediate plate and is carried out preservative treatment by ground tackle inside employing force feed equipment, the easy degradation and decomposition of grease and High-temperature Liquefaction flow out, and overall antiseptic effect is not good.
The requirement of connecting sealed corrosion-resistant is had for prestressing without bondn anchor system under two or three class environment in JGJ92-2004 " unbonded prestressed concrete structure tecnical regulations ", connecting portion keeps waterproof hereinafter referred to as waterproof characteristic under lOkPa hydrostatic pressure, and require this system after installing under lOkPa air pressure, the maintenance 5min pressure loss is not more than 10% hereinafter referred to as hermetic properties.With regard to current data, the domestic sealing problem for prestressing without bondn anchor system connecting portion is the good solution of neither one also.
Utility model content
The purpose of this utility model is to provide the prestressing without bondn anchorage corrosion protection structure that a kind of oil sealing is effective, anti-corrosion life is long, to overcome the weak point that existing Non-stuck reinforced anchor head corrosion resisting device exists.
The technical scheme solved the problem is: a kind of prestressing without bondn anchorage corrosion protection structure, comprise the hermetically-sealed construction arranged between anchor slab and anchor plate being positioned at ground tackle end anti-corrosive apparatus on anchor plate and ground tackle end anti-corrosive apparatus, that is: on the anchor slab and anchor plate of anti-corrosion anchor device with unbonded tendons, also have the little groove of m bar, between anchor slab and anchor plate, be coated with one deck preserving and sealing glue; The span of m is: m is the arbitrary integer between 1,2,3,4.
Further technical scheme is: ground tackle end anti-corrosive apparatus comprise connecting bolt, rubber pad, intermediate plate, anchor slab, for covering the protective sleeve of unbonded tendon termination, sealing bolt and the anticorrosion grease that is poured in oil sealing cover of having peeled off PE cover; intermediate plate anchor is on anchor slab; rubber pad is between protective sleeve and anchor plate, and between anchor plate and rubber pad, rubber pad and protective sleeve be coated with preserving and sealing glue.
Further technical scheme is again: ground tackle end anti-corrosive apparatus comprise intermediate plate, anchor slab, for covering protective sleeve, the anchor plate of the unbonded tendon termination of having peeled off PE cover; intermediate plate anchor is on anchor slab; there is internal thread the openend of protective sleeve; anchor plate has external screw thread, is together by a threaded connection between protective sleeve and anchor plate.
Between anchor slab and anchor plate, between anchor slab and rubber pad, the preserving and sealing glue smeared between rubber pad and protective sleeve is non-drying sealant.
There is sealing bolt hole one end of protective sleeve, and the other end is provided with link bolt hole, and sealing bolt hole is 1, link bolt hole at least 3.
Sealing bolt hole on the protective sleeve of anti-corrosion anchor device with unbonded tendons is simultaneously for filling with oilhole, and ground tackle external surface is coated with the anticorrosion grease of thickness 0.1 ~ 10mm.
The prestressing without bondn anchorage corrosion protection structure of the utility model, compared with existing Non-stuck reinforced anchor head corrosion resisting device, has following beneficial effect:
The prestressing without bondn anchorage corrosion protection structure of the utility model is except comprising the ground tackle end anti-corrosive apparatus that is positioned on anchor plate, also between the anchor slab and anchor plate of ground tackle end anti-corrosive apparatus, be provided with hermetically-sealed construction, that is: preserving and sealing glue is added at the contact surface of all parts, effectively ensure that the sealing performance of structure, and structure is simple, easy construction, well solve the problem of current Non-stuck reinforced anchor head corrosion resisting device leakage of oil, further increase the bulk life time of anchor head and steel strand, for the durability of engineering structures provides powerful guarantee.
Accompanying drawing explanation
A kind of prestressing without bondn anchorage corrosion protection structure of Fig. 1 schematic diagram;
In figure: 1, sealing bolt; 2, protective sleeve; 3, steel strand; 4, anticorrosion grease; 5, intermediate plate; 6, anchor slab; 7, connecting bolt; 8, rubber pad; 9, anchor plate; 10, preserving and sealing glue.
The anchor slab schematic diagram of Fig. 2 prestressing without bondn anchorage corrosion protection structure, the little groove on 601 anchor slabs;
The anchor plate schematic diagram of Fig. 3 prestressing without bondn anchorage corrosion protection structure, the little groove on 901 anchor plates.
Detailed description of the invention
Below in conjunction with accompanying drawing and technical scheme, further illustrate detailed description of the invention of the present utility model.
A kind of prestressing without bondn anchorage corrosion protection structure, comprises the hermetically-sealed construction arranged between anchor slab 6 and anchor plate 9 being positioned at ground tackle end anti-corrosive apparatus on anchor plate 9 and ground tackle end anti-corrosive apparatus.
Ground tackle end anti-corrosive apparatus comprise connecting bolt 7, rubber pad 8, intermediate plate 5, anchor slab 6, for covering the protective sleeve 2 of unbonded tendon termination, sealing bolt 1 and the anticorrosion grease 4 that is poured in oil sealing cover of having peeled off PE cover; intermediate plate 5 anchor is on anchor slab 6; rubber pad 8 is between protective sleeve 2 and anchor plate 9, and between anchor plate 9 and rubber pad 8, rubber pad 9 is coated with preserving and sealing glue 10 with protective sleeve 2.
The anchor slab 6 and anchor plate 9 of prestressing without bondn anchorage corrosion protection structure also have 2 little grooves, and the little groove 601 on anchor slab 6 and the little groove 901 between anchor plate 9 stagger mutually, are coated with one deck preserving and sealing glue 10 between anchor slab 6 and anchor plate 9;
For making the anticorrosion grease 4 not easy to leak of utility model prestressing without bondn anchorage corrosion protection structure; the anticorrosion grease of NLGI2 rank (needle penetration is 265 ~ 295) should be adopted; therefore adopt the sealing bolt hole of ground tackle end protective cover 2 as filling oilhole; can be the anticorrosion grease of 0.1 ~ 10mm at ground tackle external surface smearing thickness during construction; fill out enough anticorrosion grease in protective sleeve 2 after; protective sleeve 2 being installed, also can fill with oil by filling with oilhole.
During use, non-bending steel cable is divested PE to anchor slab 6 and anchor plate 9 contact surface, before anchor slab 3 is installed, anchor plate 9 end face is cleaned out, wipe clean the grease on steel strand 3 surface, in groove 901 space of anchor plate 9, groove 601 space of anchor slab 6 and the contact surface of anchor slab 6 and anchor plate 9 smear preserving and sealing glue 10, finally anchor slab 6 is pressed in anchor plate 9 end face, install intermediate plate 5 stretch-draw, to be tensioned complete and excise steel strand more than 3 long after, between protective sleeve 2 and rubber pad 8, preserving and sealing glue 10 is smeared between rubber pad 8 and anchor plate 9, ground tackle external surface smearing thickness is the anticorrosion grease 4 of 0.1 ~ 10mm, fill out enough anticorrosion grease 4 in protective sleeve 2 after, protective sleeve 2 is installed, or fill with oil by filling with oilhole, and compress protective sleeve 2, then 3 connecting bolts 7 are tightened, thus ensure that the sealing effectiveness of each contact surface in ground tackle place, improve the anti-corrosion life of anchor head and steel strand.
One as the utility model embodiment converts, the little groove 901 number m of the little groove 601 on the anchor slab 6 of prestressing without bondn anchorage corrosion protection structure and anchor plate 9 also can increase or reduce, and the span of m is: m is the arbitrary integer between 1,2,3,4.Little groove between anchor slab 6 and anchor plate 9 also can be relative.
One as the utility model embodiment converts; ground tackle end anti-corrosive apparatus comprise intermediate plate, anchor slab, for covering protective sleeve, the anchor plate of unbonded tendon termination having peeled off PE cover; intermediate plate anchor is on anchor slab; there is internal thread the openend of protective sleeve; anchor plate has external screw thread, is together by a threaded connection between protective sleeve and anchor plate.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
Claims (5)
1. a prestressing without bondn anchorage corrosion protection structure, comprise the ground tackle end anti-corrosive apparatus be positioned on anchor plate (9), it is characterized in that: between the anchor slab (6) and anchor plate (9) of ground tackle end anti-corrosive apparatus, be provided with hermetically-sealed construction, that is: on the anchor slab (6) and anchor plate (9) of anti-corrosion anchor device with unbonded tendons, also have the little groove of m bar, between anchor slab and anchor plate, be coated with one deck preserving and sealing glue; The span of m is: m is the arbitrary integer between 1,2,3,4.
2. prestressing without bondn anchorage corrosion protection structure according to claim 1, is characterized in that: the preserving and sealing glue smeared between anchor slab (6) and anchor plate (9) is non-drying sealant.
3. prestressing without bondn anchorage corrosion protection structure according to claim 1, it is characterized in that: described ground tackle end anti-corrosive apparatus comprises connecting bolt (7), rubber pad (8), intermediate plate (5), anchor slab (6), for covering the protective sleeve (2) of the unbonded tendon termination of having peeled off PE cover, sealing bolt (1) and the anticorrosion grease (4) be poured in oil sealing cover, intermediate plate (5) anchor is on anchor slab (6), rubber pad (8) is positioned between protective sleeve (2) and anchor plate (9), between anchor plate (9) and rubber pad (8), rubber pad (8) and protective sleeve (2) are coated with preserving and sealing glue (10).
4. prestressing without bondn anchorage corrosion protection structure according to claim 1, is characterized in that: the sealing bolt hole on protective sleeve (2) is simultaneously for filling with oilhole.
5. prestressing without bondn anchorage corrosion protection structure according to claim 1, is characterized in that: there is sealing bolt hole one end of protective sleeve (2), and the other end is provided with link bolt hole, and sealing bolt hole is 1, link bolt hole at least 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974206.4U CN205171836U (en) | 2015-12-01 | 2015-12-01 | Prestressing without bondn ground tackle anticorrosion structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520974206.4U CN205171836U (en) | 2015-12-01 | 2015-12-01 | Prestressing without bondn ground tackle anticorrosion structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205171836U true CN205171836U (en) | 2016-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520974206.4U Expired - Fee Related CN205171836U (en) | 2015-12-01 | 2015-12-01 | Prestressing without bondn ground tackle anticorrosion structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN205171836U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812253A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | A kind of prestressing without bondn anchorage corrosion protection structure |
-
2015
- 2015-12-01 CN CN201520974206.4U patent/CN205171836U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106812253A (en) * | 2015-12-01 | 2017-06-09 | 衡阳市新德力预应力有限公司 | A kind of prestressing without bondn anchorage corrosion protection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 421200 5 Qingjiang North Road, West Town, Hengyang County, Hengyang, Hunan Patentee after: Hengyang city Xindeli traffic Material Co. Ltd. Address before: 421000 5 Qingjiang North Road, Hengyang Economic Development Zone, Hengyang, Hengyang Patentee before: HENGYANG XINDELI PRESTRESS CO., LTD. |
|
| 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: 20160420 Termination date: 20191201 |