CN103924516A - Novel and durable combined type suspension bridge main cable - Google Patents
Novel and durable combined type suspension bridge main cable Download PDFInfo
- Publication number
- CN103924516A CN103924516A CN201410159565.4A CN201410159565A CN103924516A CN 103924516 A CN103924516 A CN 103924516A CN 201410159565 A CN201410159565 A CN 201410159565A CN 103924516 A CN103924516 A CN 103924516A
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- CN
- China
- Prior art keywords
- strand
- cable
- suspension bridge
- combined type
- rope
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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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Classifications
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B5/00—Making ropes or cables from special materials or of particular form
- D07B5/002—Making parallel wire strands
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2201/00—Ropes or cables
- D07B2201/20—Rope or cable components
- D07B2201/2001—Wires or filaments
- D07B2201/201—Wires or filaments characterised by a coating
- D07B2201/2011—Wires or filaments characterised by a coating comprising metals
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2205/00—Rope or cable materials
- D07B2205/30—Inorganic materials
- D07B2205/3021—Metals
- D07B2205/3085—Alloys, i.e. non ferrous
- D07B2205/3092—Zinc (Zn) and tin (Sn) alloys
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- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B2501/00—Application field
- D07B2501/20—Application field related to ropes or cables
- D07B2501/2015—Construction industries
- D07B2501/203—Bridges
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- Ropes Or Cables (AREA)
Abstract
The invention relates to a novel and durable combined type suspension bridge main cable which is of a hexagonal structure formed by a plurality of cable strands (1), each cable strand (1) is of a regular hexagonal structure formed by a plurality of steel wires, the steel wires forming the cable strands (1) are coated with a zinc-aluminium alloy plating layer, the steel wires forming an outer-layer cable strand (2) on the outer edge face of the main cable are further coated with an epoxy coating layer, the steel wires forming an inner-layer cable strand (3), close to the outer-layer cable strand (2), of the cable strands (2) are further coated with an epoxy coating layer, the outer edge face, away from the inner-layer cable strand (3), of the outer-layer cable strand (2) is additionally provided with a plurality of cable strands in the length direction of the main cable, and the additionally-arranged cable strands and the original cable strands forming the hexagonal structure form a new outer-layer cable strand (2). The novel and durable combined type suspension bridge main cable has the advantages of being high in corrosion resistance capability, and long in service life.
Description
Technical field
The present invention relates to a kind of main rope of suspension bridge, especially relate to a kind of permanent seal cooling main rope of suspension bridge that adopts composite construction and long service life, belong to bridge cable technical field.
Background technology
Main push-towing rope is the main supporting member of suspension bridge, is difficult to change, once damage and will cause serious security incident because of corrosion, is therefore called as the lifeline of suspension bridge; There is corrosion owing to being very easily subject to the immersion of the corrosive mediums such as industrial atmosphere, ocean climate, moisture in main push-towing rope steel wire, has a strong impact on safety and the durability of bridge.
Therefore, since suspension bridge starts to build, the anticorrosion problem of considering with regard to becoming bridge design person and builder's emphasis of main push-towing rope steel wire, within 1903, the U.S. has built up Williams (Williatnsburg) bridge, because the reason of cost has been saved the zinc coat of steel wire and has been wound around protection, and replace linseed oil and coated with graphite steel wire, after building up, only within 7 years, just find steel wire corrosion and fracture of wire; To the thirties in last century, main cable protection application starts to adopt the putty (also claiming red lead cream) contain lead oxide as the finishing system of cathodic protection, is wound around round wire simultaneously, and the means of defence of coating paint externally; What the Gold Gate Bridge of the U.S. building up as nineteen thirty-seven adopted is exactly the method, after bridge builds up continuously always, again and again main push-towing rope top layer is carried out the maintaining of oil paint coating; After this in a very long time, the anticorrosion of main push-towing rope all adopts this technology, but putty and coating are being updated; The anticorrosion Hot Galvanizing Technology that all adopts of main rope of suspension bridge strand steel wire building up before 2003, all adopts above technology to carry out integral protection processing after main cable strand has set up;
Although the construction of First modern suspension is the existing history that surpasses year so far, main cable protection technology is constantly upgrading also, but whether whether these guard technologies effectively its corrosion of corrosion has occurred to have reached what degree be the problem that many people are concerned about in the inside of these main push-towing ropes; In view of above worry, many countries have successively all carried out main push-towing rope to its early stage suspension bridge of building and have opened cable inspection; Check result shows;
From whole main push-towing rope corrosion condition, the steel wire corrosion of main push-towing rope periphery is serious compared with inner wire corrosion; At same position place, the Lower Half steel wire of main push-towing rope corrodes compared with first half steel wire seriously corroded; The degree of depth of the main push-towing rope bottom centripetal portion of steel wire corrosion is serious compared with other directions; Based on above problem, for improving main push-towing rope durability, need a kind of novel combined main push-towing rope structure badly, this main push-towing rope can be for the main cable strand of different parts in main rope of suspension bridge, adopt different anticorrosion painting (plating) layer technology, to improve the resistance to corrosion of main push-towing rope steel wire itself, thereby the resistance to corrosion of raising main rope, extend its application life.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, provide that a kind of resistance to corrosion is strong, the novel durable combined type main rope of suspension bridge of long service life.
The object of the present invention is achieved like this: a kind of novel durable combined type main rope of suspension bridge, described main push-towing rope includes the hexagonal structure that multiply strand forms, the described strand regular hexagon structure that many steel wires form of serving as reasons, on the steel wire of formation strand, be coated with zinc aluminum alloy coating, form on the formation steel wire of outer strand of main push-towing rope outer edge surface and be also coated with epoxy coating, above-mentioned strand is also coated with epoxy coating near being positioned on the formation steel wire of internal layer strand of outer strand of bottom.
A kind of novel durable combined type of the present invention main rope of suspension bridge, described outer strand adds many piece strands along main push-towing rope length direction at it on away from the outer edge surface of internal layer strand, and this strand installing additional forms new outer strand with original strand that forms hexagonal structure.
A kind of novel durable combined type of the present invention main rope of suspension bridge, the thickness of described zinc aluminum alloy coating is not less than 0.04mm.
A kind of novel durable combined type of the present invention main rope of suspension bridge, the thickness of described epoxy coating is not less than 0.3mm.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention utilizes zinc aluminum alloy coating to substitute original hot dip galvanizing coating, thereby the resistance to corrosion of steel wire is significantly improved; Simultaneously, easily be corroded and finding that by check the position of serious corrosion adopts composite construction to improve resistance to corrosion, this composite construction is for applying one deck epoxy coating on the basis of report zinc aluminum alloy coating, further improve the corrosion resistance of steel wire, effectively raise the antiseptic power of main push-towing rope, be conducive to extend its application life.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of novel durable combined type of the present invention main rope of suspension bridge.
Wherein:
Strand 1, outer strand 2, internal layer strand 3.
The specific embodiment
Referring to Fig. 1, a kind of novel durable combined type main rope of suspension bridge the present invention relates to, described main push-towing rope includes the hexagonal structure that multiply strand 1 forms, the described strand 1 regular hexagon structure that many steel wires form of serving as reasons, on the steel wire of formation strand 1, be coated with zinc aluminum alloy coating, and the thickness of this zinc aluminum alloy coating is not less than 0.04mm, (the formation steel wire that is outer strand 2 applies one deck epoxy coating outward again at its zinc aluminum alloy coating on the formation steel wire of the outer strand 2 of formation main push-towing rope outer edge surface, to be also coated with epoxy coating, further increase its antiseptic power), the thickness of this epoxy coating is not less than 0.3mm, near being positioned at, on the formation steel wire of internal layer strand 3 of outer strand 2 of bottom, to be yet coated with epoxy coating (be that zinc aluminum alloy coating at the formation steel wire of internal layer strand 3 applies one deck epoxy coating outward again to above-mentioned strand 1 equally, further increase its antiseptic power), the concrete quantity of internal layer strand 3 can determine the specific environment of land used according to main rope, can one or more layers,
Outer strand 2 adds many piece strands along main push-towing rope length direction at it on away from the outer edge surface of internal layer strand 3, and this strand installing additional forms common outer strand 2 with original strand that forms hexagonal structure;
By above-mentioned composite structure, at corrosion-prone position, add and be coated with one deck epoxy coating to increase resistance to corrosion, effectively raise the application life of main push-towing rope.
Claims (4)
1. a novel durable combined type main rope of suspension bridge, described main push-towing rope includes the hexagonal structure that multiply strand (1) forms, described strand (1) the regular hexagon structure that many steel wires form of serving as reasons, it is characterized in that: on the steel wire of formation strand (1), be coated with zinc aluminum alloy coating, form on the formation steel wire of outer strand (2) of main push-towing rope outer edge surface and be also coated with epoxy coating, above-mentioned strand (1) is also coated with epoxy coating near being positioned on the formation steel wire of internal layer strand (3) of outer strand (2) of bottom.
2. a kind of novel durable combined type main rope of suspension bridge as claimed in claim 1, it is characterized in that: described outer strand (2) adds many piece strands along main push-towing rope length direction at it on away from the outer edge surface of internal layer strand (3), this strand installing additional forms new outer strand (2) with original strand that forms hexagonal structure.
3. a kind of novel durable combined type main rope of suspension bridge as claimed in claim 1, is characterized in that: the thickness of described zinc aluminum alloy coating is not less than 0.04mm.
4. a kind of novel durable combined type main rope of suspension bridge as described in claim 1,2 or 3, is characterized in that: the thickness of described epoxy coating is not less than 0.3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159565.4A CN103924516A (en) | 2014-04-21 | 2014-04-21 | Novel and durable combined type suspension bridge main cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159565.4A CN103924516A (en) | 2014-04-21 | 2014-04-21 | Novel and durable combined type suspension bridge main cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103924516A true CN103924516A (en) | 2014-07-16 |
Family
ID=51142896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410159565.4A Pending CN103924516A (en) | 2014-04-21 | 2014-04-21 | Novel and durable combined type suspension bridge main cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103924516A (en) |
Cited By (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 |
| CN105862592A (en) * | 2016-04-13 | 2016-08-17 | 江苏法尔胜缆索有限公司 | Manufacturing method of hot extrusion polyethylene zinc-aluminum alloy coating steel wire cable |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001107507A (en) * | 1999-10-13 | 2001-04-17 | Kurosawa Construction Co Ltd | Fixing part structure of pc steel product and buffer material injection method in fixing part of pc steel product |
| JP2007009526A (en) * | 2005-06-30 | 2007-01-18 | Se Corp | Spacer for protective pipe |
| CN201339162Y (en) * | 2008-12-26 | 2009-11-04 | 江苏法尔胜新日制铁缆索有限公司 | Epoxy coating steel wire stay cable |
| CN202047368U (en) * | 2011-03-17 | 2011-11-23 | 江苏法尔胜新日制铁缆索有限公司 | Large gauge suspension bridge main cable strand structure adopting 7mm steel wires |
| CN202416175U (en) * | 2011-11-30 | 2012-09-05 | 成都盛尔嘉科技有限公司 | Composite type anticorrosion bridge cable |
| CN203821243U (en) * | 2014-04-21 | 2014-09-10 | 江苏法尔胜缆索有限公司 | Novel durable composite main cable for suspension bridge |
-
2014
- 2014-04-21 CN CN201410159565.4A patent/CN103924516A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001107507A (en) * | 1999-10-13 | 2001-04-17 | Kurosawa Construction Co Ltd | Fixing part structure of pc steel product and buffer material injection method in fixing part of pc steel product |
| JP3330107B2 (en) * | 1999-10-13 | 2002-09-30 | 黒沢建設株式会社 | Structure of anchoring part of PC steel and method of injecting buffer material in anchoring part of PC steel |
| JP2007009526A (en) * | 2005-06-30 | 2007-01-18 | Se Corp | Spacer for protective pipe |
| CN201339162Y (en) * | 2008-12-26 | 2009-11-04 | 江苏法尔胜新日制铁缆索有限公司 | Epoxy coating steel wire stay cable |
| CN202047368U (en) * | 2011-03-17 | 2011-11-23 | 江苏法尔胜新日制铁缆索有限公司 | Large gauge suspension bridge main cable strand structure adopting 7mm steel wires |
| CN202416175U (en) * | 2011-11-30 | 2012-09-05 | 成都盛尔嘉科技有限公司 | Composite type anticorrosion bridge cable |
| CN203821243U (en) * | 2014-04-21 | 2014-09-10 | 江苏法尔胜缆索有限公司 | Novel durable composite main cable for suspension bridge |
Non-Patent Citations (1)
| Title |
|---|
| 蒋永康等: "锌铝合金镀层钢丝在桥梁缆索上应用的探讨", 《金属制品》 * |
Cited By (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 |
| CN105862592A (en) * | 2016-04-13 | 2016-08-17 | 江苏法尔胜缆索有限公司 | Manufacturing method of hot extrusion polyethylene zinc-aluminum alloy coating steel wire cable |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140716 |
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| RJ01 | Rejection of invention patent application after publication |