CN205347994U - Corrosion -resistant main push -towing rope of compound protection layer for suspension bridge - Google Patents
Corrosion -resistant main push -towing rope of compound protection layer for suspension bridge Download PDFInfo
- Publication number
- CN205347994U CN205347994U CN201620098750.1U CN201620098750U CN205347994U CN 205347994 U CN205347994 U CN 205347994U CN 201620098750 U CN201620098750 U CN 201620098750U CN 205347994 U CN205347994 U CN 205347994U
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- CN
- China
- Prior art keywords
- steel wire
- zinc
- main push
- towing rope
- corrosion
- Prior art date
- 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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Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ropes Or Cables (AREA)
Abstract
The utility model relates to a corrosion -resistant main push -towing rope of compound protection layer for suspension bridge comprises a plurality of orthohexagonal structure's of having strand, and single strand comprises a plurality of compound steel wires again, and compound steel wire is bright steel wire, zinc -aluminium cladding material and epoxy resin coating from inside to outside in proper order, and wherein aluminium content is 4.2~7.2wt% in the zinc -aluminium cladding material, and epoxy resin coating's thickness is 0.2~0.4mm. Wherein compound steel wire have by bright steel wire zinc -plated aluminium coat carries out in proper order, electrostatic spraying epoxy resin coating forms. The steel wire surface that constitutes strand in the main push -towing rope of this structure is provided with zinc -aluminium cladding material and epoxy resin coating from inside to outside, prevents that corrosion life can reach more than 100 years, can show the corrosion resisting property who improves the main push -towing rope.
Description
Technical field
This utility model belongs to bridge cable technical field, is specifically related to the main rope of suspension bridge of a kind of longer service life.
Background technology
Worldwide, the material of bridge cable is mainly cold-drawn carbon steel wire, and coating is pure zinc coating.The distinguishing feature of this steel wire is that phosphorus content is high, and tensile strength is big, zinc coat unit mass >=300g/m2, according to country's building anti-corrosion handbook, this coating can reach 20 years to 25 years in the anticorrosive life-span of coastal area.In recent years, bridge cable Zn-Al Alloy Coated Steel Wire has been developed that, zinc aluminum alloy coating unit mass >=300g/m2, to verify through salt fog resistance, its salt spray corrosion resistance is 2 times of hot dip galvanizing coating, and this coating anticorrosive life-span under marine environment can reach 40～50 years in theory, but can not meet far away the designing requirement more than 100 years in bridge main push-towing rope service life.
Epoxy resin is the family macromolecule compound in molecule containing two or more epoxide groups.Epoxy coating mainly includes machine epoxy resin and firming agent, filler, pigment and flow-control agent, after epoxy powder is heated melting, reacts to each other with each constituent and forms complicated cross linked polymer.According to about test and application practice, thickness in anticorrosive life-span of 0.2～0.4mm epoxy coating up to more than 50 years.
Along with the bridge construction place of China has been developed into coastal from inland, bridge construction environment becomes increasingly complex, the use environment of main push-towing rope is more severe, develops the better main push-towing rope of a kind of decay resistance being the pendulum one problem in face of those skilled in the art suitable in area over strait.
Utility model content
Technical problem to be solved in the utility model is the suspension bridge main push-towing rope providing a kind of decay resistance higher for above-mentioned prior art.
The technical scheme in the invention for solving the above technical problem is: a kind of corrosion-resistant main push-towing rope of suspension bridge composite armor, it is made up of some strands of strands, described strand is made up of some composite steel wires, and described composite steel wire includes bright steel wire, zinc-aluminium coating and epoxy coating from inside to outside successively.
Preferably, the thickness of described epoxy coating is 0.2～0.4mm, test finds that anticorrosive life-span of epoxy coating of this thickness was up to more than 50 years, and will not ftracture under the conditions such as steel wire ultimate tensile strength, torsion, bending, winding, be layered, the phenomenon such as peeling.
Preferably, described strand is regular hexagon structure.
Further, in described zinc-aluminium coating, aluminum content is 4.2～7.2wt%, meets the requirement in national standard " bridge Zn-Al Alloy Coated Steel Wire cable " (paper for approval).
The preparation method of above-mentioned suspension bridge composite armor anticorrosion main push-towing rope in this utility model, concrete technology includes: immersed by wire rod bright steel wire after drawing in melted allumen liquid, zinc-aluminium coating on bright steel wire plated surface, the unit mass >=300g/m of zinc-aluminium coating2, in zinc-aluminium coating, the content of aluminum is 4.2～7.2wt%；The steel wire that then surface is coated with zinc-aluminium coating carries out electrostatic spraying epoxy coating formation epoxy coating, utilize the physical phenomenon of electrophoresis, the epoxy coating granule making atomization is with negative charge in DC high voltage electric field, and under the effect of electrostatic field, directionally flow to positively charged Zn-Al Alloy Coated Steel Wire, originally the heated melted formation of mutual NA powder particle is uniform, smooth, smooth coating, the thickness of epoxy coating is 0.2～0.4mm, obtain composite steel wire, some composite steel wires are assembled into the strand of hexagonal structure, then take some strands again and be assembled into suspension bridge main push-towing rope.Wherein zinc-aluminium coating and epoxy resin steel wire are placed on the outer layer and bottom that are susceptible to corrosion main push-towing rope.
Preferably, after zinc-aluminium coating completes, adopt saponification liquor to zinc-aluminium coating surface degreasing, and before electrostatic spraying epoxy coating, steel wire is preheated, to improve electrostatic spraying effect, make between epoxy coating and zinc-aluminium coating relatively reliable in combination, it is prevented that cracking, separation.
Described epoxy coating mainly includes epoxy resin, firming agent, filler, pigment and flow-control agent.
Compared with prior art, the utility model has the advantage of:
(1) Steel Wire Surface constituting strand is provided with zinc-aluminium coating and epoxy coating from inside to outside, significantly improves the decay resistance of cable, improves the durability of main push-towing rope.
(2) epoxy coating of composite steel wire outer layer can be partially filled with the gap between each strand steel wire after the tight cable of main push-towing rope, favourable in corrosion resistance, thus improving the durability of main push-towing rope.
(3) there is zinc-aluminium coating simultaneously there is with the composite steel wire of epoxy coating the mechanical property identical with independent zinc-aluminium coating wire, the mechanical performance of steel wire will not be impacted by the epoxy coating that namely outer layer is coated with, and the phenomenon such as epoxy coating and the zinc-aluminium coating in this utility model will not ftracture under the conditions such as the ultimate tensile strength of steel wire, torsion, bending, winding, is layered, peeling.
(4) the composite steel wire main cable strand of zinc-aluminium coating and epoxy coating adopts pltine hot casting anchor, and the steel wire in anchor cup is the Zn-Al Alloy Coated Steel Wire after divesting epoxy, does not reduce the anchoring property of main cable strand.
(5) verifying through anti-skid test, the composite steel wire main push-towing rope of zinc-aluminium coating and epoxy coating and the coefficient of friction of cord clip, between 0.28～0.30, are far longer than normal value, meet " highway suspension bridge design specification " requirement.
(6) after Strand Erection completes, the safeguard procedures such as S shaped steel wire can be wound around outside composite steel wire, make main push-towing rope close, improve the durability of main push-towing rope.
Accompanying drawing explanation
Fig. 1 is the structural representation of composite steel wire in the embodiment of the present invention；
Fig. 2 is the cross-section cutaway view of composite steel wire in the embodiment of the present invention；
Fig. 3 is the side view of composite steel wire in the embodiment of the present invention；
Fig. 4 is the structural representation of main cable strand in the embodiment of the present invention；
The cross-section cutaway view that Fig. 5 is main push-towing rope in the embodiment of the present invention (is all the composite steel wire of zinc-aluminium coating and epoxy coating.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, this utility model is described in further detail.
As shown in Figures 1 to 5, the corrosion-resistant main push-towing rope 5 of suspension bridge composite armor in the present embodiment, it is made up of some strands 4 with regular hexagon structure, single strand 4 is made up of some composite steel wires again, composite steel wire is followed successively by bright steel wire 1, zinc-aluminium coating 2 and epoxy coating 3 from inside to outside, wherein in zinc-aluminium coating 2, aluminum content is 4.2～7.2wt%, and the thickness of epoxy coating 3 is 0.2～0.4mm.
The preparation technology of above-mentioned main push-towing rope 5 is, immerses in melted allumen liquid by wire rod bright steel wire 1 after drawing, zinc-aluminium coating 2 on bright steel wire plated surface, the unit mass >=300g/m of zinc-aluminium coating 22, in zinc-aluminium coating 2, the content of aluminum is 4.2～7.2wt%；Adopt the uniformity of copper sulfate test inspection zinc-aluminium coating: copper sulfate soaks number of times >=4 time, each soak time 60 seconds.Zinc-aluminium coating 2 utilizes saponification liquor dirty to zinc-aluminium coating 2 surface degreasing after completing, utilize heating generator that steel wire is preheated therewith, and then zinc-aluminium coating 2 outer surface carries out electrostatic spraying epoxy coating to form epoxy coating 3, utilize the physical phenomenon of electrophoresis, the epoxy coating granule making atomization is with negative charge in DC high voltage electric field, and under the effect of electrostatic field, directionally flow to positively charged zinc aluminum alloy coating outer peripheral face, originally the heated melted formation of mutual NA powder particle is uniform, smooth, smooth coating, the thickness of epoxy coating 3 is namely obtain composite steel wire after 0.2～0.4mm, some composite steel wires are assembled into the strand 4 of regular hexagon structure, then take some strands 4 again and be assembled into suspension bridge main push-towing rope 5.
Described epoxy coating mainly includes epoxy resin, firming agent, filler, pigment and flow-control agent.
The performance test results of above-mentioned composite steel wire should meet the requirement of table 1.
The technical specification of table 1 composite steel wire
The Steel Wire Surface constituting strand in the main push-towing rope of said structure is provided with zinc-aluminium coating and epoxy coating from inside to outside, thus significantly improving the decay resistance of main push-towing rope.
Claims (3)
1. the corrosion-resistant main push-towing rope of suspension bridge composite armor, it is made up of some strands of strands (4), it is characterized in that: described strand (4) is made up of some composite steel wires, described composite steel wire includes bright steel wire (1), zinc-aluminium coating (2) and epoxy coating (3) from inside to outside successively.
2. the corrosion-resistant main push-towing rope of suspension bridge composite armor according to claim 1, it is characterised in that: described strand (4) is regular hexagon structure.
3. the corrosion-resistant main push-towing rope of suspension bridge composite armor according to claim 1, it is characterised in that: the thickness of described epoxy coating (3) is 0.2～0.4mm.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510387581.3A CN104975565A (en) | 2015-06-30 | 2015-06-30 | Compound protective layer anti-corrosion main cable for suspension bridge and making method thereof |
| CN2015103875813 | 2015-06-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205347994U true CN205347994U (en) | 2016-06-29 |
Family
ID=54272499
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387581.3A Withdrawn CN104975565A (en) | 2015-06-30 | 2015-06-30 | Compound protective layer anti-corrosion main cable for suspension bridge and making method thereof |
| CN201610066792.1A Pending CN105544393A (en) | 2015-06-30 | 2016-01-30 | Composite protecting layer anticorrosion main cable for suspension bridge and preparation method of composite protecting layer anticorrosion main cable |
| CN201620098750.1U Expired - Fee Related CN205347994U (en) | 2015-06-30 | 2016-01-30 | Corrosion -resistant main push -towing rope of compound protection layer for suspension bridge |
| CN201620119415.5U Expired - Fee Related CN205529910U (en) | 2015-06-30 | 2016-02-14 | Suspension bridge is with corrosion -resistant main push -towing rope of economical compound protection layer |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510387581.3A Withdrawn CN104975565A (en) | 2015-06-30 | 2015-06-30 | Compound protective layer anti-corrosion main cable for suspension bridge and making method thereof |
| CN201610066792.1A Pending CN105544393A (en) | 2015-06-30 | 2016-01-30 | Composite protecting layer anticorrosion main cable for suspension bridge and preparation method of composite protecting layer anticorrosion main cable |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620119415.5U Expired - Fee Related CN205529910U (en) | 2015-06-30 | 2016-02-14 | Suspension bridge is with corrosion -resistant main push -towing rope of economical compound protection layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN104975565A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544393A (en) * | 2015-06-30 | 2016-05-04 | 梁振西 | Composite protecting layer anticorrosion main cable for suspension bridge and preparation method of composite protecting layer anticorrosion main cable |
| CN114575249A (en) * | 2022-03-24 | 2022-06-03 | 无锡市政设计研究院有限公司 | Connecting structure of suspension bridge cable clamp and main cable and construction process |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105239508A (en) * | 2015-10-28 | 2016-01-13 | 梁振西 | Compound protective layer corrosion-resistant main cable for suspension bridge |
| CN106012836B (en) * | 2016-06-02 | 2017-09-01 | 沈阳建筑大学 | A kind of means of defence of main cable of suspension bridge |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07268810A (en) * | 1994-03-28 | 1995-10-17 | Nippon Steel Corp | Anticorrosion method of main cable for suspension bridge |
| JPH1077604A (en) * | 1996-09-03 | 1998-03-24 | Nippon Steel Corp | Corrosion-proofing method for main cable for suspension bridge |
| CN1110606C (en) * | 1999-09-15 | 2003-06-04 | 北京航空材料研究院 | Method and structure for protecting primary cable system of suspension bridge |
| CN2775095Y (en) * | 2005-01-25 | 2006-04-26 | 江苏法尔胜新日制铁缆索有限公司 | Super high strength parallel steel wire durable pull cable |
| CN103882800A (en) * | 2014-03-11 | 2014-06-25 | 江苏法尔胜缆索有限公司 | Suspension bridge main cable and cable stands for the same |
| CN104975565A (en) * | 2015-06-30 | 2015-10-14 | 江苏法尔胜缆索有限公司 | Compound protective layer anti-corrosion main cable for suspension bridge and making method thereof |
-
2015
- 2015-06-30 CN CN201510387581.3A patent/CN104975565A/en not_active Withdrawn
-
2016
- 2016-01-30 CN CN201610066792.1A patent/CN105544393A/en active Pending
- 2016-01-30 CN CN201620098750.1U patent/CN205347994U/en not_active Expired - Fee Related
- 2016-02-14 CN CN201620119415.5U patent/CN205529910U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105544393A (en) * | 2015-06-30 | 2016-05-04 | 梁振西 | Composite protecting layer anticorrosion main cable for suspension bridge and preparation method of composite protecting layer anticorrosion main cable |
| CN114575249A (en) * | 2022-03-24 | 2022-06-03 | 无锡市政设计研究院有限公司 | Connecting structure of suspension bridge cable clamp and main cable and construction process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN205529910U (en) | 2016-08-31 |
| CN104975565A (en) | 2015-10-14 |
| CN105544393A (en) | 2016-05-04 |
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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: 20160629 Termination date: 20210130 |