CN201627143U - Bridge wire strand seal protective structure - Google Patents
Bridge wire strand seal protective structure Download PDFInfo
- Publication number
- CN201627143U CN201627143U CN 200920279047 CN200920279047U CN201627143U CN 201627143 U CN201627143 U CN 201627143U CN 200920279047 CN200920279047 CN 200920279047 CN 200920279047 U CN200920279047 U CN 200920279047U CN 201627143 U CN201627143 U CN 201627143U
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- room temperature
- cable
- temperature vulcanization
- bridge
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Abstract
The utility model belongs to the protection technical field and relates to a bridge wire strand seal protective structure for a suspension bridge rope and a cable-stayed bridge. The wire strand is composed of a zinc-coated steel wire bunch, the protective layer of the steel wire bunch sequentially comprises a PE jacket protective layer, an elastic room temperature vulcanization sealant layer, a glass cloth layer, an elastic sealant layer and a protective finish paint layer from interior to exterior. The cable-stayed wire strand protective layer for the suspension bridge rope and the cable-stayed bridge adopts the room temperature vulcanization elastic sealant and the high-strength glass cloth can integrally wrap the PE jacket parallel wire strand, on one hand, the moisture and harmful substances are prevented from penetrating through, on the other hand, the steel wires are in anaerobic condition and the corrosion situation is effectively prevented. The room temperature vulcanization elastic sealant has the superior performances of high elasticity, anti-aging property, water resistance, air tightness and weather resistance.
Description
Technical field
The utility model belongs to guard technology, relates to a kind of bridge hawser sealing protection structure that is used for sling of suspension bridge and cable stayed bridge.
Background technology
The hoist cable of modernization suspension bridge and the suspension cable of cable stayed bridge are the key members of suspension bridge and cable stayed bridge, are positioned at the beam external body, and are in high-stress state, relatively more responsive to corrosion, therefore the hoist cable structure is taked effective protection, alleviate the steel wire corrosion, it is vital prolonging the hoist cable life-span.
JP11081231 Japan Patent prospectus discloses a kind of method of suspension bridge cable protection, its method is to coat with polyethylene band or thermosetting property polyethylene plate on the cable surface, the most handy S-shaped steel silk closely twines and forms the barrier layer, then at cable surface installing sleeve, the material of sleeve can be the elastic deformation materials such as plastics that steel plate, galvanized steel plain sheet, corrosion resistant plate or fiber are strengthened, sleeve interior surface is chromium plating or polytetrafluoroethylene (PTFE) or separant coating, sticks with resin preventing.After installing sleeve, inject hypergolic polyurethane resin, treat to remove sleeve behind the curable urethane resin.Hypergolic polyurethane resin is the liquid that can inject before solidifying, and has certain flexibility after the curing, the material that anticorrosive property and weatherability are good.This structure construction complexity, overcoat intensity is less, and under the alternation effect of temperature and stress and under the natural aging effect, crackle may appear in overcoat, causes Corrosion Protection to reduce.
Summary of the invention
The purpose of this utility model is intended to overcome above-mentioned the deficiencies in the prior art part, and providing a kind of can overlap the hoist cable of coating and the safeguard structure that suspension cable effectively keeps in repair to effective protection of tiltedly drawing cable of sling of suspension bridge and cable stayed bridge and to the polyethylene (PE) that existing anticorrosion was lost efficacy for a long time.Technical solution of the present utility model is, cable is made of parallel galvanized steel tow, and the overcoat of steel tendon periphery is followed successively by polyethylene jacket overcoat, elasticity room temperature vulcanization sealant layer, glass fabric layer, elastomeric sealant layer and protection top coat layer from inside to outside.
Described elasticity room temperature vulcanization sealant layer is room temperature vulcanization polysulfide sealant layer or polyurethane sealant layer or organic silicon sealant layer.
Advantage that the utlity model has and beneficial effect, tiltedly draw the cable safeguard structure according to sling of suspension bridge of the present utility model and cable stayed bridge, by room temperature vulcanized elastomeric sealant and high strength glass cloth, PE sheath parallel steel wire rope integral coating can be got up, do not allow extraneous moisture and hazardous substances invade on the one hand, make steel wire be in anaerobic condition on the other hand, can effectively stop the generation of steel wire corrosion.The room temperature vulcanization elastomeric sealant has premium properties such as high resiliency, ageing-resistant performance, water resistance, tightness, weatherability, twined high strength fibre cloth between PE cover and room temperature vulcanized elastomeric sealant glue-line, improve the compatibility between PE cover and room temperature vulcanized elastomeric sealant glue-line, realized reliable sealing protection.The elastomeric sealant layer has certain toughness and elasticity in addition, can play certain damping shock absorption effect to cable wire itself.High-intensity fiber glass fabric or nylon cloth play the effect of enhanced leaktightness agent glue-line, the protection acroleic acid polyurethane finish paint that superficies apply, with the room temperature vulcanization sealant good adhesive property is arranged, and have good weatherability, salt fog resistance, corrosion resistance and durability.Each layer performance cooperatively interacts, and supports mutually, and hoist cable and suspension cable structure have been formed complete protection system.
The safeguard structure that the utility model provides also is applicable to the existing maintenance works that the hoist cable of pe sheath protection is only arranged.The hoist cable of PE sheath is because the protection inefficacy that PE cover material face crack causes, adopt safeguard structure of the present utility model to keep in repair, can avoid changing hoist cable, thereby shortened maintenance cycle, simplified method for maintaining, saved maintenance cost and reduced owing to change the economic loss that Suo Weixiu causes traffic to stop transport and cause.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
Referring to this accompanying drawing, cable is made of parallel galvanized steel tow 1, and the overcoat of steel tendon 1 periphery is followed successively by polyethylene jacket overcoat 2, elasticity room temperature vulcanization sealant layer 3, glass fabric layer 4, elastomeric sealant layer 5 and protection top coat layer 6 from inside to outside.
In the safeguard structure that provides according to the utility model, it is circular steel tendon 1 that hoist cable constitutes the cross section by the multiply high-strength galvanized steel wire, the outer surface of hoist cable coats layer of polyethylene cover overcoat 2, polyethylene jacket overcoat 2 external surface blade coating one deck elasticity room temperature vulcanization sealant layers 3.This elasticity room temperature vulcanization sealant layer can adopt the HM106 sealant of Beijing Institute of Aeronautical Materials, China Aviation Industry Group Corporation's production as sealant, and sealant is made up of polysulfide rubber, reinforced filling, tackifier and metal oxide etc.This room temperature vulcanization sealant has premium properties such as high resiliency, ageing-resistant performance, water resistance, tightness, weatherability, and polyethylene jacket overcoat 2 is had good adhesive property.High strength glass layer of cloth 4 is neutral plain weave glass fabric, has high strength, and suitable thickness has good adhesive property with elastomeric sealant.Elastomeric sealant layer 5 is identical with elasticity room temperature vulcanization sealant layer 3, can adopt the HM106 sealant of being produced by Beijing Institute of Aeronautical Materials, China Aviation Industry Group Corporation.Outermost layer is protection top coat layer 6.This protection finish paint can adopt acroleic acid polyurethane finish paint or fluorine carbon finishing paint, has good weatherability, salt fog resistance, corrosion resistance and durability.
Claims (2)
1. bridge hawser sealing protection structure, it is characterized in that, cable is made of parallel galvanized steel tow, and the overcoat of steel tendon periphery is followed successively by polyethylene jacket overcoat, elasticity room temperature vulcanization sealant layer, glass fabric layer, elastomeric sealant layer and protection top coat layer from inside to outside.
2. require described bridge hawser sealing protection structure as right 1, it is characterized in that: described elasticity room temperature vulcanization sealant layer is room temperature vulcanization polysulfide sealant layer or polyurethane sealant layer or organic silicon sealant layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920279047 CN201627143U (en) | 2009-11-06 | 2009-11-06 | Bridge wire strand seal protective structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920279047 CN201627143U (en) | 2009-11-06 | 2009-11-06 | Bridge wire strand seal protective structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201627143U true CN201627143U (en) | 2010-11-10 |
Family
ID=43058534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920279047 Expired - Lifetime CN201627143U (en) | 2009-11-06 | 2009-11-06 | Bridge wire strand seal protective structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201627143U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102733302A (en) * | 2012-07-06 | 2012-10-17 | 郑州中原应用技术研究开发有限公司 | Sealing device for suspension bridge main cable anchoring system in-anchor-room cable ducts, and protection method thereof |
| CN102953333A (en) * | 2011-08-27 | 2013-03-06 | 上海浦江缆索股份有限公司 | Composite-sheathed stay cable body and production method thereof |
| CN103924515A (en) * | 2014-04-11 | 2014-07-16 | 浙江省交通规划设计研究院 | Protecting steel wire for main cable of suspension bridge |
| CN105757240A (en) * | 2015-10-16 | 2016-07-13 | 北京橡胶工业研究设计院 | Sealing technology of end part of bridge wire rope fixture |
| CN115323927A (en) * | 2022-08-19 | 2022-11-11 | 上海市政工程设计研究总院（集团）有限公司 | Stay cable PE sheath wrapping type maintenance method |
-
2009
- 2009-11-06 CN CN 200920279047 patent/CN201627143U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102953333A (en) * | 2011-08-27 | 2013-03-06 | 上海浦江缆索股份有限公司 | Composite-sheathed stay cable body and production method thereof |
| CN102953333B (en) * | 2011-08-27 | 2015-12-09 | 上海浦江缆索股份有限公司 | Cable body of composite protection layer tension cable and manufacture method thereof |
| CN102733302A (en) * | 2012-07-06 | 2012-10-17 | 郑州中原应用技术研究开发有限公司 | Sealing device for suspension bridge main cable anchoring system in-anchor-room cable ducts, and protection method thereof |
| CN102733302B (en) * | 2012-07-06 | 2015-04-15 | 郑州中原应用技术研究开发有限公司 | Sealing device for suspension bridge main cable anchoring system in-anchor-room cable ducts, and protection method thereof |
| CN103924515A (en) * | 2014-04-11 | 2014-07-16 | 浙江省交通规划设计研究院 | Protecting steel wire for main cable of suspension bridge |
| CN105757240A (en) * | 2015-10-16 | 2016-07-13 | 北京橡胶工业研究设计院 | Sealing technology of end part of bridge wire rope fixture |
| CN115323927A (en) * | 2022-08-19 | 2022-11-11 | 上海市政工程设计研究总院（集团）有限公司 | Stay cable PE sheath wrapping type maintenance method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101110 |
|
| CX01 | Expiry of patent term |