CN203247504U - Forked hot cast anchor head for bridge suspension cable end portion - Google Patents
Forked hot cast anchor head for bridge suspension cable end portion Download PDFInfo
- Publication number
- CN203247504U CN203247504U CN 201320273530 CN201320273530U CN203247504U CN 203247504 U CN203247504 U CN 203247504U CN 201320273530 CN201320273530 CN 201320273530 CN 201320273530 U CN201320273530 U CN 201320273530U CN 203247504 U CN203247504 U CN 203247504U
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- CN
- China
- Prior art keywords
- anchor
- anchor cup
- steel wires
- tensile steel
- cup
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- Expired - Fee Related
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Abstract
The utility model discloses a forked hot cast anchor head for a bridge suspension cable end portion. A protective jacket wraps high-tensile steel wires, one side of the fixed ends of high-tensile steel wires is arranged in an anchor cup and is fixed on an anchor plate inside the anchor cup, epoxy iron sand is padded between the anchor cup and the high-tensile steel wires in the anchor cup on one side where the high-tensile steel wires are connected to the anchor plate, the protective jacket is sleeved with a lengthened sleeve, the anchor cup is sleeved with one end of the lengthened sleeve in a sealing mode, a heat-shrinkable tubing is sleeved with the other end of the lengthened sleeve in the sealing mode, the heat-shrinkable tubing is also sleeved with the protective jacket, the outer circumferential side of the anchor cup is connected with a nut through threads, and the anchor cup is sleeved with a ball-shaped support which is arranged on one side of the nut. The forked hot cast anchor head for the bridge suspension cable end portion can solve the technical problem that bridge suspension cables are corroded in various environments.
Description
Technical field
The utility model relates to a kind of member of bridge construction, particularly relates to a kind of cable arrangement of cable stayed bridge.
Background technology
At present, although the drag-line in the cable stayed bridge has been adopted many safeguard procedures, all can not stop the generation of corrosion.The existence of water is the basic reason that causes corroding generation in the drag-line.Why have water in drag-line inside, following possibility is arranged: drag-line is erected in the position of appointment needs the regular hour, in the meantime, rainwater and steam all can enter drag-line and stay inside, both made corrosion resistance preferably the epoxy steel strand in coating procedure, in being difficult to also guarantee that steam is not wrapped in, the various ions in the atmosphere enter drag-line inside by sealing place of rope damage or the crackle of coating surface, and steel strand are caused corrosion.It is the primary condition that atmospheric corrosion occurs that moisture oxygen in steel strand surface cohesion generation moisture film and air enters the metal surface by moisture film.Salt particle concentration in the marine atmosphere, the pH value of acid rain etc. are very large to the corrosion impact of steel strand in atmosphere.Therefore, very easily suffer environmental corrosion, particularly contain a large amount of SO
4 2-, CO
2, Cl
-Deng the area of corrosive substance (be the area of C3, C4 such as atmospheric corrosiveness).
(1) sealing place that damages by drag-line when water and oxygen or the crackle of coating surface enter drag-line inside, and penetrate protective coating and contact with naked steel strand, naked steel strand are because the surface sorption effect, make steel strand surface form water membrane, the ferrous components in the steel strand and impurity component are (such as Fe
3C) close contact forms potential difference, adds the electrolysis of moisture film, just forms countless micro cells at naked steel strand surface, especially in the acidic atmosphere environment, because the iron in the steel strand and impurity are as being placed on H
+, HCO
3 -, HSO
3 -Deng the same in the electrolyte solution, form countless galvanic cells, this moment, the current potential of iron was low than impurity.The final Fe (OH) that forms of naked steel strand oxygen uptake electrochemical corrosion just can occur in sealing place that damages by steel strand when water and oxygen or the crackle of coating surface
3And dehydration product Fe
2O
3Become the corrosion product iron rust.
(2) acid rain easily is adsorbed on the drag-line surface, and penetrates into drag-line inside.See through overcoat naked steel strand are caused corrosion, and form ferrous sulfate (FeSO soluble in water at steel strand surface
4), further oxidation also is hydrolyzed generation sulfuric acid (H
2SO
4).The sulfuric acid that this form generates all can form corrosion to steel strand surface, and the reaction of this self-catalysis formula is constantly carried out drag-line constantly is corroded.Therefore, the acid rain of different pH values is very large to the corrosion impact of steel strand.Chlorion mainly comes from coastal or marine salt mist environment or contains the atmosphere of sodium chloride particle dust; they are deposited in the moisture film on drag-line surface; chlorion has very strong hygroscopic effect simultaneously; and with rain penetration to steel strand surface; the moisture film electrolysis that will add like this steel strand surface, the carrying out that accelerates electrochemical corrosion.
Traditional stranded galvanized steel and epoxy steel strand especially epoxy steel strand have been strengthened decay resistance and the life-span of steel hinge line to a certain extent.But, in investigation and practice, find, because the impact of all factors such as operating environment still has a considerable amount of cable system bridge cables to exist the disease of corrosion fracture of wire at present, the various means of defences of taking are always ineffective.
Summary of the invention
The purpose of this utility model provides a kind of Bridge Sling end fork-shaped hot-cast anchor head, to solve under various environment, for bridge cable provides effectively etch-proof technical problem.
Fork-shaped hot-cast anchor head in a kind of Bridge Sling end is wrapped with sheath at high-tensile steel wires, and this high-tensile steel wires fixed end one side and is fixed with anchor slab in the anchor cup in the anchor cup; In the anchor cup, be positioned at connection high-tensile steel wires one side of anchor slab, there is the epoxy iron sand to be filled between anchor cup and the high-tensile steel wires; There is a lengthening sleeve to be enclosed within outside the sheath, an end and anchor cup sealing socket, the other end and the heat-shrinkable T bush sealing socket that is enclosed within equally on the sheath; By screw thread, be bolted with nut at anchor cup outer circumferential side, this nut one side has spherical bearing to be enclosed within on the anchor cup.
The utlity model has good seal, compact conformation and simple advantage can be adapted to various occasions, particularly contain in the air of acid ingredient, and protection effect also can be for a long time and safety.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Number among the figure: 1, anchor cup, 2, nut, 3, spherical bearing, 4, high-tensile steel wires, 5, sheath, 6, lengthening sleeve, 7, heat-shrinkable T bush, 8, anchor slab, 9, cable, 10, the epoxy iron sand.
The specific embodiment
Structure of the present utility model is referring to shown in Figure 1, and it comprises: nut 2 and spherical cover for seat 3 outside the sheath 5 of high-tensile steel wires 4 and outer wrapping, the anchor cup 1 with anchor slab 8, the anchor cup 1.Be wrapped with sheath 5 at high-tensile steel wires 4, this high-tensile steel wires 4 fixed ends one side and is fixed with anchor slab 8 in the anchor cup 1 in anchor cup 1; In anchor cup 1, be positioned at connection high-tensile steel wires 4 one sides of anchor slab 8, there is epoxy iron sand 10 to be filled in the space between anchor cup 1 and the high-tensile steel wires 4; There is a lengthening sleeve 6 to be enclosed within outside the sheath 5, an end and the 1 sealing socket of anchor cup, the other end and the heat-shrinkable T bush 7 sealing sockets that are enclosed within equally on the sheath 5; By screw thread, be bolted with nut 2 at anchor cup 1 outer circumferential side, these nut 2 one sides have spherical bearing 3 to be enclosed within on the anchor cup 1.
Described sheath adopts the HDPE sheath, can effectively protect high-tensile steel wires.The lengthening sleeve of the openend sealing socket by the anchor cup and the heat-shrinkable T bush that the lengthening sleeve other end is tightly connected are sealed in the end of high-tensile steel wires in the anchor cup effectively, the secondary seal protection of epoxy iron sand packed layer is arranged again, so that effective protective of the present utility model is able to a greatly height.
Claims (1)
1. a Bridge Sling end fork-shaped hot-cast anchor head is characterized in that, is wrapped with sheath at high-tensile steel wires, and this high-tensile steel wires fixed end one side and is fixed with anchor slab in the anchor cup in the anchor cup; In the anchor cup, be positioned at connection high-tensile steel wires one side of anchor slab, there is the epoxy iron sand to be filled between anchor cup and the high-tensile steel wires; There is a lengthening sleeve to be enclosed within outside the sheath, an end and anchor cup sealing socket, the other end and the heat-shrinkable T bush sealing socket that is enclosed within equally on the sheath; By screw thread, be bolted with nut at anchor cup outer circumferential side, this nut one side has spherical bearing to be enclosed within on the anchor cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320273530 CN203247504U (en) | 2013-05-20 | 2013-05-20 | Forked hot cast anchor head for bridge suspension cable end portion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320273530 CN203247504U (en) | 2013-05-20 | 2013-05-20 | Forked hot cast anchor head for bridge suspension cable end portion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203247504U true CN203247504U (en) | 2013-10-23 |
Family
ID=49373951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320273530 Expired - Fee Related CN203247504U (en) | 2013-05-20 | 2013-05-20 | Forked hot cast anchor head for bridge suspension cable end portion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203247504U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105442448A (en) * | 2015-11-19 | 2016-03-30 | 马玉荣 | Bridge stabilizing device |
| CN108026706A (en) * | 2015-08-31 | 2018-05-11 | Vsl 国际股份公司 | Cable anchor system |
-
2013
- 2013-05-20 CN CN 201320273530 patent/CN203247504U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108026706A (en) * | 2015-08-31 | 2018-05-11 | Vsl 国际股份公司 | Cable anchor system |
| CN108026706B (en) * | 2015-08-31 | 2020-01-14 | Vsl 国际股份公司 | Cable anchoring system |
| CN105442448A (en) * | 2015-11-19 | 2016-03-30 | 马玉荣 | Bridge stabilizing device |
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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 |
Granted publication date: 20131023 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |