CN105401521A - Shaping method and clamp for main cable strand of suspension bridge - Google Patents
Shaping method and clamp for main cable strand of suspension bridge Download PDFInfo
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- CN105401521A CN105401521A CN201510931473.8A CN201510931473A CN105401521A CN 105401521 A CN105401521 A CN 105401521A CN 201510931473 A CN201510931473 A CN 201510931473A CN 105401521 A CN105401521 A CN 105401521A
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- 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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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention provides a shaping method and clamp for a main cable strand of a suspension bridge, and belongs to the field of engineering equipment. The method is characterized in that steel wires are marked according to the size of the steel wires; the main cable strand comprises a plurality of steel wires, and different steel wires are correspondingly marked; the steel wires are divided into a plurality of areas to be shaped through the marks on the steel wires; the plurality of steel wires are conveyed from the head end to the tail end of an operation platform; when in conveying, the plurality of steel wires in the area to be shaped between the adjacent marks are shaped into regular polygonal structures having different sections. The clamp comprises the operation platform, a regular quadrangular clamp and a regular hexagonal clamp, wherein the regular quadrangular clamp and the regular hexagonal clamp are correspondingly mounted on the operation platform. According to the method and the clamp, the cable strand is shaped in advance in the in-plant processing production stage, so that the mounting position accuracy can be ensured, and the precision meets the construction demand; in addition, the shaping processes at a construction site can be decreased, and the quality of the cable strand is prevented from reduction caused by the site shaping.
Description
Technical field
The present invention relates to engineering equipment field, in particular to a kind of main rope of suspension bridge strand shaping methods and strand reshaping clamp.
Background technology
The large span bridge crossing over broad deep water waters can reduce the quantity of bridge pier in deep water foundation or water, prevents waterborne vessel from clashing into, and keeps Navigation capacity.Realizing single-span to break through and Large-Span Continuous leap, is one of major issue of bridge development attention and concern.Rope bridge is the first-selected structure of Longspan Bridge, and rope bridge main cable strand is the main power transmission bearing carrier of rope bridge.In prior art, main rope, when carrying out anchoring, needs to adjust accordingly according to the cross section of field condition by main cable strand, and the normal ppws of employing method sets up main rope.
Inventor finds under study for action, at least there is following shortcoming in main cable strand erection process of the prior art:
In the construction of PPWS method Strand Erection, one important operation was had before main cable strand enters cable saddle, the hexagon steel wire thread kept by the fabrication stage manually utilizes steel tool that strand is carded to quadrangle, and need hexagon strand retainer and quadrangle strand reshaper to be clamped, after entering saddle Deng strand, utilize jack and hardwood to be squeezed in by strand in cable saddle strand notch, then remove quadrangle and hexagon reshaper.Steel disc combing strand artificial in construction, inevitably damages the zinc coat of strand, reduces the protective system of strand, waste a large amount of manpowers and time simultaneously, reduce the productivity ratio of Strand Erection.
Summary of the invention
The object of the present invention is to provide a kind of main rope of suspension bridge strand shaping methods, when setting up with the main cable strand improving prior art, the zinc coat of strand is easily destroyed causes the problem that the antiseptic property of strand reduces, safety in utilization reduces.
The present invention also aims to provide a kind of strand reshaping clamp, complete at the scene and do not provide the shaping device of complete set to cause the problem that in reforming process, the zinc coat of strand is easily destroyed during to improve the main rope shaping of prior art.
The present invention is achieved in that
Based on above-mentioned first object, the invention provides a kind of main rope of suspension bridge strand shaping methods, comprise the steps:
Step S100, according to the size of steel wire in the enterprising row labels of steel wire, described main cable strand comprises many described steel wires, marks respectively to different described steel wires, and described steel wire is separated into by the mark of described steel wire multiplely treats shaping region;
Step S200, the initiating terminal of many described steel wires along operating platform to be carried towards the clearing end of operating platform;
Step S300, in steel wire course of conveying, will treat that many of shaping region described steel wires are shaped as the different regular polygon structure in cross section between adjacent described mark.
Preferably, described step S100 comprises, and steel wire adopts the paint of two kinds of different colours mark, the width of the described paint of different colours is equal, and the intersection of the described paint of different colours is straight line.
Preferably, described step S200 comprises, and many described steel wires are each passed through devillicate machine, and many described steel wires are the arrangement of orthohexagonal shape in cross section in described devillicate machine.
Preferably, in described step S300, described mark is provided with multiple, and multiple described mark is arranged along the length direction interval of described steel wire; Adopt regular hexagon clamp in the first mark, described regular hexagon fixture is between the intersection and the front end of described steel wire of the described paint of described different colours, and the end face of described hexagonal clamp overlaps with described intersection; Again front end being shaped as cross section to many described steel wires of the first mark is orthohexagonal shape;
The described steel wire of square clamp many is adopted respectively in the first mark and the second mark, two described quadrangle fixtures are between the intersection and the intersection of the second mark of the first mark, and the end face of two described quadrangle fixtures overlaps with corresponding intersection respectively, more described for many between the first mark and the second mark steel wire is shaped as the shape that cross section is square.
Preferably, in described step S300, be the shape that regular hexagon is alternate by treating many of shaping region described steel wires described in different to be shaped as cross section being square and cross section.
Preferably, carrying out cross section for treating described in square in shaping region, shaping from distance hexagonal clamp 0.8m-1.2m place.
Preferably, in described step S300, in many described steel wire course of conveying, many described steel wires bundle strapping, after adopting regular polygon fixture to clamp, remove described strapping.
Based on above-mentioned second object, the invention provides a kind of strand reshaping clamp, comprise operating platform, square fixture and regular hexagon fixture, wherein, described square fixture and described regular hexagon fixture are installed on described operating platform respectively, and described square fixture and described regular hexagon fixture are arranged along the length direction interval of described operating platform.
Preferably, described square fixture and described regular hexagon fixture are slidably connected to described operating platform respectively, and described regular hexagon fixture and described square fixture can slide along the length direction of described operating platform relative to described operating platform.
Preferably, described square fixture and described regular hexagon fixture are respectively arranged with pressure sensor, for detecting corresponding described square fixture and the clamping force of described regular hexagon fixture.
The invention has the beneficial effects as follows:
In sum, main rope of suspension bridge strand shaping methods provided by the invention, the method is simple and quick, improve the shaping quality of main cable strand, avoid main cable strand at the scene shaping time the fragile and problem causing decline application life, meanwhile, this main cable strand shaping methods ensure that the strand of different section in shaping, transport, put rope, set up, be lifted into the saddle stage strand shape variation phenomenon does not occur, improve erection efficiency.Specific as follows:
This main rope of suspension bridge strand shaping methods adopts indoor shaping, strand is carried out shaping in factory, require to carry out shaping according to the cross section of position strands different during erection, erection construction is carried out at the scene that can be transported to after strand shaping, substantially reduces construction period.Strand is carried out shaping in advance, namely on the steel wire that strand is shaping, mark the separation in cross section respectively, when many steel wires close up, multiple separation constitutes face, and the cross section after the strand shaping of two adjacent mark is different, and the strand after machining has different cross sections, during installation, the strand part in the cross section of correspondence is arranged on different positions, does not need to carry out shaping at the scene, improve installation effectiveness.Meanwhile, when carrying out shaping in factory, when scratch or other problem have appearred in the steel wire making strand in reforming process, repair process can have been carried out at once, ensure that strand shaping after quality.In factory, carry out the processing of strand, greatly ensure that the precision that strand is processed, and then improve the crudy of strand, strand uses more safe and reliable.
Strand reshaping clamp provided by the invention, it is simple and reasonable, convenient processing and manufacture, low cost of manufacture, the strand Forming Quality utilizing this reshaping clamp shaping to obtain is high, and the cross section of strand is arranged as required, improve efficiency of construction during Strand Erection, ensure that completing smoothly of duration.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, be to be understood that, the following drawings illustrate only some embodiment of the present invention, therefore the restriction to scope should be counted as, for those of ordinary skill in the art, under the prerequisite not paying creative work, other relevant accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the schematic diagram of main rope of suspension bridge strand shaping methods provided by the invention;
Fig. 2 is the structure chart of strand reshaping clamp provided by the invention.
Reference numeral gathers:
Regular hexagon fixture 100, square fixture 200, strand 300, operating platform 400, strapping 500.
Detailed description of the invention
In the construction of PPWS method Strand Erection, one important operation was had before main cable strand enters cable saddle, the hexagon steel wire thread kept by the fabrication stage manually utilizes steel tool that strand is carded to quadrangle, and need hexagon strand retainer and quadrangle strand reshaper to be clamped, after entering saddle Deng strand, utilize jack and hardwood to be squeezed in by strand in cable saddle strand notch, then remove quadrangle and hexagon reshaper.Steel disc combing strand artificial in construction, inevitably damages the zinc coat of strand, reduces the protective system of strand, waste a large amount of manpowers and time simultaneously, reduce the productivity ratio of Strand Erection.
Given this, designer of the present invention devises a kind of main rope of suspension bridge strand shaping methods and strand reshaping clamp, main cable strand is processed as different cross sections by this suspension bridge main cable shaping methods, during erection, strand is installed in place according to installation requirement, decrease on-the-spot strand trimming, when strand shaping is carried out at the scene of avoiding, the structure of the steel wire of destructible strand causes the problem that strand safety in utilization is low.
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.The assembly of the embodiment of the present invention describing and illustrate in usual accompanying drawing herein can be arranged with various different configuration and design.Therefore, below to the detailed description of the embodiments of the invention provided in the accompanying drawings and the claimed scope of the present invention of not intended to be limiting, but selected embodiment of the present invention is only represented.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that: represent similar terms in similar label and letter accompanying drawing below, therefore, once be defined in an a certain Xiang Yi accompanying drawing, then do not need to define further it and explain in accompanying drawing subsequently.
In describing the invention, it should be noted that, term " " center ", " on ", D score, " left side ", " right side ", " vertically ", " level ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, or this invention product orientation of usually putting or position relationship when using, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.In addition, term " first ", " second ", " the 3rd " etc. only for distinguishing description, and can not be interpreted as instruction or hint relative importance.
In describing the invention, also it should be noted that, unless otherwise clearly defined and limited, term " setting ", " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Suspension bridge main cable embodiment
Refer to Fig. 1, present embodiments provide a kind of main rope of suspension bridge strand shaping methods, comprise the steps:
Step S100, according to the size of steel wire in the enterprising row labels of steel wire, described main cable strand comprises many described steel wires, marks respectively to different described steel wires, and described steel wire is separated into by the mark of described steel wire multiplely treats shaping region;
Step S200, the initiating terminal of many described steel wires along operating platform to be carried towards the clearing end of operating platform;
Step S300, in steel wire course of conveying, will treat that many of shaping region described steel wires are shaped as the different regular polygon structure in cross section between adjacent described mark.
The suspension bridge main cable shaping methods that this embodiment provides, the method is simple and quick, improve the shaping quality of main cable strand, avoid main cable strand at the scene shaping time the fragile and problem causing decline application life, simultaneously, this main cable strand shaping methods ensure that the strand 300 of different section in shaping, transport, put rope, set up, be lifted into the saddle stage strand 300 shape variation phenomenon does not occur, improve erection efficiency.Specific as follows:
This main rope of suspension bridge strand shaping methods adopts indoor shaping, strand 300 is carried out shaping in factory, require to carry out shaping according to the cross section of position strands 300 different during erection, scene can be transported to after strand 300 shaping and carry out erection construction, substantially reduce construction period.Strand 300 is carried out shaping in advance, namely on the steel wire that strand 300 is shaping, mark the separation in cross section respectively, when many steel wires close up, multiple separation constitutes face, and the cross section after strand 300 shaping of two adjacent mark is different, and the strand 300 after machining has different cross sections, during installation, strand 300 part in the cross section of correspondence is arranged on different positions, does not need to carry out shaping at the scene, improve installation effectiveness.Meanwhile, when carrying out shaping in factory, when scratch or other problem have appearred in the steel wire making strand 300 in reforming process, repair process can have been carried out at once, ensure that strand 300 shaping after quality.In factory, carry out the processing of strand 300, greatly ensure that the precision that strand 300 is processed, and then improve the crudy of strand 300, strand 300 uses more safe and reliable.
In the preferred version of this embodiment, described step S100 comprises, steel wire adopt the paint of two kinds of different colours mark, the width of the described paint of different colours is equal, and the intersection of the described paint of different colours is straight line, the separation of mark is obvious, is convenient to the spaced-apart locations determining different cross section in process, ensures the precision of strand 300 during construction.Intersection is straight line, is convenient to match with fixture in position fixing process, and after clamp, both served the effect of clamping strand 300, meanwhile, can not affect again the shaping of adjacent strand 300 part, loose situation not easily appears in strand 300 junction of different cross section.
In the preferred version of this embodiment, described step S200 comprises, and many described steel wires are each passed through devillicate machine, and many described steel wires are the arrangement of orthohexagonal shape in cross section in described devillicate machine.Man-hour is added actual, the steel wire forming strand 300 includes many, many described steel wires need to rearrange positive shape changeable structure in a certain order, and this processing technology can refer to the processing method of the strand 300 of existing regular hexagonal section, is not described in detail at this.First many described steel wires are passed devillicate machine, make it form the cross section of orthohexagonal shape, not only there is the effect of positioning wire, meanwhile, in strand 300 reforming process, when the cross section of strand 300 is regular hexagon, be convenient to the change in the follow-up cross section of strand 300.When strand 300 sets up, the cross section to be installed of strand 300 needs to carry out shaping, and other cross section does not need to carry out shaping, be regular hexagon, therefore, by many described steel wires by devillicate machine arrangement in regular hexagon, reduce the difficulty of strand 300 shaping, convenient when being shaped as regular hexagon from devillicate machine steel wire out.Devillicate machine is prior art, does not improve its structure in this embodiment, and repeat burden in order to avoid describing, the concrete structure of devillicate machine is not described in detail.
In the preferred version of this embodiment, in described step S300, described mark is provided with multiple, and multiple described mark is arranged along the length direction interval of described steel wire; Adopt regular hexagon fixture 100 to be clamped in the first mark, described regular hexagon fixture 100 is between the intersection and the front end of described steel wire of the described paint of described different colours, and the end face of described hexagonal clamp overlaps with described intersection; Again front end being shaped as cross section to many described steel wires of the first mark is orthohexagonal shape;
Square fixture 200 is adopted to clamp many described steel wires respectively in the first mark and the second mark, two described quadrangle fixtures are between the intersection and the intersection of the second mark of the first mark, and the end face of two described quadrangle fixtures overlaps with corresponding intersection respectively, more described for many between the first mark and the second mark steel wire is shaped as the shape that cross section is square.In the actual erection process of strand 300, the Cross section Design of the installation site of strand 300 is quadrangle, namely strand 300 add man-hour by the cross section of mark according to erection requirement be shaped as quadrangle, improve strand 300 set up efficiency.Do not need to be that orthohexagonal strand 300 is shaped as quadrangle at the scene by cross section, decrease strand 300 at the scene shaping cause the probability of the Quality Down of strand 300.In reforming process, adopt fixture to be clamped at the two ends of the strand 300 of different cross section, be convenient to the fixing of the shape of strand 300 during shaping, improve the success rate of shaping.During strand 300 shaping, according to installation requirement, need the cross section process carrying out multistage, therefore, needing on steel wire, mark multiple mark position, can be the first mark, the second mark by tag definitions according to steel wire delivery end ... N mark, carries out the determination of N value according to actual conditions, wherein, N be more than or equal to 1 natural number.The front end of steel wire refers to the end of the throughput direction along steel wire.
In the preferred version of this embodiment, in described step S300, be the shape that regular hexagon is alternate by treating many of shaping region described steel wires described in different to be shaped as cross section being square and cross section, be convenient to the shaping of strand 300, be set to the shape in different cross sections as required, meet erection requirement.
In the preferred version of this embodiment, in described step S300, carrying out cross section for treating described in square in shaping region, shaping from distance hexagonal clamp 0.8m-1.2m place, is convenient to the shaping of strand 300, the strand 300 not easily shaping of the position of holder, therefore, from the position shaping away from its 0.8m to 1.2m, be convenient to the cross section of the strand 300 changing holder position, preferably be set to, in distance, hexagonal clamp 1.0m place starts shaping.
In the preferred version of this embodiment, in described step S300, in many described steel wire course of conveying, many described steel wires bundle strapping 500, after adopting regular polygon fixture to clamp, remove described strapping 500.In strand 300 reforming process, strand 300 is not easily loose, is convenient to shaping.
Strand reshaping clamp embodiment
Refer to Fig. 2, present embodiments provide a kind of strand reshaping clamp, comprise operating platform 400, square fixture 200 and regular hexagon fixture 100, wherein, described square fixture 200 and described regular hexagon fixture 100 are installed on described operating platform 400 respectively, and described square fixture 200 and described regular hexagon fixture 100 are arranged along the length direction interval of described operating platform 400.
The strand reshaping clamp that the present embodiment provides, it is simple and reasonable, convenient processing and manufacture, low cost of manufacture, the strand Forming Quality utilizing this reshaping clamp shaping to obtain is high, and the cross section of strand is arranged as required, improve efficiency of construction during Strand Erection, ensure that completing smoothly of duration.In steel wire course of conveying, steel wire is provided with mark, need between adjacent mark position to carry out shaping to the cross section of strand, therefore, when steel wire is delivered to different chucking positions, adopt fixture to clamp, and then carry out re-shaping exercise, ensure carrying out smoothly of strand shaping, the strand after machining has different cross sections, is convenient to the erection operation of strand.
In the preferred version of this embodiment, described square fixture 200 and described regular hexagon fixture 100 are slidably connected to described operating platform 400 respectively, and described regular hexagon fixture 100 and described square fixture 200 can slide along the length direction of described operating platform 400 relative to described operating platform 400.Need the position of sliding clamp according to different designs, ensure that fixture can be located accurately strand in clamping process.
In the preferred version of this embodiment, described square fixture 200 and described regular hexagon fixture 100 are respectively arranged with pressure sensor, for detecting corresponding described square fixture 200 and the clamping force of described regular hexagon fixture 100.Be convenient to the clamping force adjusting fixture, ensure, in clamping process, both to realize clamping effect, improve shaping quality, the structure of steel wire can not be destroyed again, ensure the total quality of strand.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a main rope of suspension bridge strand shaping methods, is characterized in that, comprises the steps:
Step S100, according to the size of steel wire in the enterprising row labels of steel wire, described main cable strand comprises many described steel wires, marks respectively to different described steel wires, and described steel wire is separated into by the mark of described steel wire multiplely treats shaping region;
Step S200, the initiating terminal of many described steel wires along operating platform to be carried towards the clearing end of operating platform;
Step S300, in steel wire course of conveying, will treat that many of shaping region described steel wires are shaped as the different regular polygon structure in cross section between adjacent described mark.
2. main rope of suspension bridge strand shaping methods according to claim 1, is characterized in that,
Described step S100 comprises, and steel wire adopts the paint of two kinds of different colours mark, the width of the described paint of different colours is equal, and the intersection of the described paint of different colours is straight line.
3. main rope of suspension bridge strand shaping methods according to claim 2, is characterized in that,
Described step S200 comprises, and many described steel wires are each passed through devillicate machine, and many described steel wires are the arrangement of orthohexagonal shape in cross section in described devillicate machine.
4. main rope of suspension bridge strand shaping methods according to claim 3, is characterized in that,
In described step S300, described mark is provided with multiple, and multiple described mark is arranged along the length direction interval of described steel wire; Adopt regular hexagon clamp in the first mark, described regular hexagon fixture is between the intersection and the front end of described steel wire of the described paint of described different colours, and the end face of described hexagonal clamp overlaps with described intersection; Again front end being shaped as cross section to many described steel wires of the first mark is orthohexagonal shape;
The described steel wire of square clamp many is adopted respectively in the first mark and the second mark, two described quadrangle fixtures are between the intersection and the intersection of the second mark of the first mark, and the end face of two described quadrangle fixtures overlaps with corresponding intersection respectively, more described for many between the first mark and the second mark steel wire is shaped as the shape that cross section is square.
5. main rope of suspension bridge strand shaping methods according to claim 4, is characterized in that,
In described step S300, be the shape that regular hexagon is alternate by treating many of shaping region described steel wires described in different to be shaped as cross section being square and cross section.
6. the main rope of suspension bridge strand shaping methods according to claim 4 or 5, is characterized in that,
In described step S300, carrying out cross section for treating described in square in shaping region, shaping from distance hexagonal clamp 0.8m-1.2m place.
7. main rope of suspension bridge strand shaping methods according to claim 6, is characterized in that,
In described step S300, in many described steel wire course of conveying, many described steel wires bundle strapping, after adopting regular polygon fixture to clamp, remove described strapping.
8. a strand reshaping clamp, it is characterized in that, comprise operating platform, square fixture and regular hexagon fixture, wherein, described square fixture and described regular hexagon fixture are installed on described operating platform respectively, and described square fixture and described regular hexagon fixture are arranged along the length direction interval of described operating platform.
9. strand reshaping clamp according to claim 8, it is characterized in that, described square fixture and described regular hexagon fixture are slidably connected to described operating platform respectively, and described regular hexagon fixture and described square fixture can slide along the length direction of described operating platform relative to described operating platform.
10. strand reshaping clamp according to claim 9, it is characterized in that, described square fixture and described regular hexagon fixture are respectively arranged with pressure sensor, for detecting corresponding described square fixture and the clamping force of described regular hexagon fixture.
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| CN201510931473.8A CN105401521B (en) | 2015-12-15 | 2015-12-15 | Main rope of suspension bridge strand shaping methods and strand reshaping clamp |
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| CN201510931473.8A CN105401521B (en) | 2015-12-15 | 2015-12-15 | Main rope of suspension bridge strand shaping methods and strand reshaping clamp |
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| CN105401521A true CN105401521A (en) | 2016-03-16 |
| CN105401521B CN105401521B (en) | 2016-12-28 |
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| CN108004922A (en) * | 2018-01-03 | 2018-05-08 | 中交公局第三工程有限公司 | Main rope of suspension bridge strand manufacturing process and main rope of suspension bridge strand manufacture system |
| CN110593097A (en) * | 2019-09-04 | 2019-12-20 | 郭斌 | Suspension bridge main push-towing rope preforming strand manufacturing and saddle entering system |
| CN112376433A (en) * | 2020-11-16 | 2021-02-19 | 上海浦江缆索股份有限公司 | Shaping pre-saddle-entering structure and saddle-entering method of zinc-aluminum-magnesium coating main cable strand |
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| CN112376433A (en) * | 2020-11-16 | 2021-02-19 | 上海浦江缆索股份有限公司 | Shaping pre-saddle-entering structure and saddle-entering method of zinc-aluminum-magnesium coating main cable strand |
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| CN105401521B (en) | 2016-12-28 |
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