CN113863138A - High-temperature-resistant main cable and manufacturing method thereof - Google Patents
High-temperature-resistant main cable and manufacturing method thereof Download PDFInfo
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- CN113863138A CN113863138A CN202010616891.9A CN202010616891A CN113863138A CN 113863138 A CN113863138 A CN 113863138A CN 202010616891 A CN202010616891 A CN 202010616891A CN 113863138 A CN113863138 A CN 113863138A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000004804 winding Methods 0.000 claims abstract description 75
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 67
- 239000010959 steel Substances 0.000 claims abstract description 67
- 230000007704 transition Effects 0.000 claims abstract description 51
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000009413 insulation Methods 0.000 claims abstract description 6
- 239000000835 fiber Substances 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 12
- 229920000728 polyester Polymers 0.000 claims description 12
- 229920002748 Basalt fiber Polymers 0.000 claims description 6
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 6
- 229920002681 hypalon Polymers 0.000 claims description 6
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000000725 suspension Substances 0.000 abstract description 3
- 230000006378 damage Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/06—Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B1/00—Constructional features of ropes or cables
- D07B1/16—Ropes or cables with an enveloping sheathing or inlays of rubber or plastics
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ropes Or Cables (AREA)
Abstract
The invention relates to the field of bridge suspension cables, in particular to a high-temperature-resistant main cable and a manufacturing method thereof. The utility model provides a high temperature resistant main push-towing rope, includes main push-towing rope steel wire (1), characterized by: the cable comprises a main cable steel wire (1), a cable strand unit (10) and a cable strand main body (20), and is characterized by further comprising a winding steel wire (2), a high-temperature-resistant layer (3), a transition layer (4) and a winding belt (5), wherein the winding steel wire (2) is wound on the cable strand main body (20), and each section of high-temperature-resistant layer (3) is sequentially arranged on a spiral cylinder of the winding steel wire (2); the transition layer (4) is coated outside each section of high temperature resistant layer (3), and the wrapping belt (5) is wrapped on the transition layer (4). A manufacturing method of a high-temperature-resistant main cable is characterized by comprising the following steps: the method is implemented in sequence according to the following steps: firstly, preparing a cable strand; preparing an intermediate layer; and making the outer layer. The invention has the advantages of simple structure, convenient construction, good fireproof and heat insulation effects and long service life.
Description
Technical Field
The invention relates to the field of bridge suspension cables, in particular to a high-temperature-resistant main cable and a manufacturing method thereof.
Background
The land traffic volume and the water route traffic volume caused by the sustainable development of economy are steadily increased, so that the occurrence frequency of bridge fire accidents is increased, and the harm caused by bridge fire is more serious. The fire serves as one of the extreme loads of the bridge, and can cause permanent damage and even collapse of the bridge, further cause casualties, traffic obstruction and reputation influence, and cause unnecessary social and economic losses. In addition, the poor fire resistance is a fatal weakness of the prestressed wire, the strength of the prestressed wire is seriously reduced at the temperature of 400 ℃, the strength and the rigidity are basically lost at the temperature of 600 ℃, and the temperature of a general fire scene is 800-1100 ℃, which can greatly influence the performance of the prestressed wire. The general main cable adopts parallel steel wire bundle strands, needs to be erected on site and rounded, cannot adopt a factory-internal prefabricated fire-proof technology, and influences the fire-proof performance of the main cable strands made of prestressed steel wires.
Disclosure of Invention
The invention discloses a high-temperature-resistant main cable and a manufacturing method thereof, aiming at overcoming the defects of the prior art and providing a bridge suspension cable with simple structure, convenient construction, good fireproof and heat-insulating effects and long service life.
The invention achieves the purpose by the following technical scheme:
the utility model provides a high temperature resistant main push-towing rope, includes main push-towing rope steel wire, characterized by: also comprises a winding steel wire, a high temperature resistant layer, a transition layer and a winding belt,
the main cable steel wires form a strand unit with a regular hexagon cross section in a mode that the outer side surfaces are mutually attached, each strand unit forms a strand main body in a mode that the outer side surfaces are mutually attached,
the winding steel wire is wound on the outer side surface of the strand main body circle by circle, the winding steel wire forms a spiral cylinder hooped on the outer side surface of the strand main body, the cross section of the spiral cylinder of the winding steel wire is vertical to the cross section of the strand main body, the winding steel wire hoops the cross section of the strand main body into a circle,
the high-temperature resistant layer is divided into at least three sections, each section of the high-temperature resistant layer is sequentially arranged on the outer side surface of the spiral cylinder for winding the steel wire at intervals, and each section of the high-temperature resistant layer is formed by winding high-temperature resistant belts one by one and wrapping the high-temperature resistant belts outside the steel wire;
the transition layer is formed by winding the transition belt circle by circle and coating the transition belt on the high-temperature resistant layer, the wrapping belt is wound on the outer side surface of the transition layer circle by circle and completely coats the transition layer, and the winding directions of the high-temperature resistant belt, the transition belt and the wrapping belt are the same.
The high-temperature resistant main cable is characterized in that: each main cable steel wire forms a strand unit with a regular hexagon cross section in the following mode:
the main cable steel wires are divided into (2k-1) layers, the (2k-1) main cable steel wires are sequentially arranged on the middle layer, namely the k-th layer, the (k-1) main cable steel wires are sequentially arranged from the middle layer to two outer sides respectively, the number of the main cable steel wires on one layer of each outer side is reduced by one, the main cable steel wires on two adjacent layers are staggered and tangentially arranged, and therefore the (3 k) main cable steel wires are arranged in a tangent mode2-3k +1) main cable wires form a strand unit with a regular hexagonal cross section, wherein k is a positive integer;
the thickness of each section of high temperature resistant layer is 2 mm-10 mm, the width of each section of high temperature resistant layer is 200 mm-800 mm, the gap between two adjacent sections of high temperature resistant layers is not more than 5mm, and the thermal conductivity coefficient of the high temperature resistant layer at the normal temperature of 25 ℃ is 0.01w/(m DEG C) to 0.025w/(m DEG C).
The high-temperature resistant main cable is characterized in that: the high-temperature resistant belt is made of ceramic composite heat-insulation belt or basalt fiber fireproof cloth, the heat conductivity coefficient of the high-temperature resistant belt at the normal temperature of 25 ℃ is 0.01w/(m DEG C) -0.025 w/(m DEG C), the transition belt is made of polyester fiber or composite fiber of polyester fiber and high-strength high-modulus polyvinyl alcohol fiber, and the winding belt is made of chlorosulfonated polyethylene belt.
The manufacturing method of the high-temperature resistant main cable is characterized by comprising the following steps: the method is implemented in sequence according to the following steps:
preparing a cable strand: forming a strand unit with a cross section being a regular hexagon by mutually attaching the outer sides of all main cable steel wires, forming a strand main body by mutually attaching the outer sides of all the strand units, winding the winding steel wires on the outer side surface of the strand main body in a circle by circle, forming a spiral cylinder hooped on the outer side surface of the strand main body by the winding steel wires, wherein the cross section of the spiral cylinder of the winding steel wires is mutually vertical to the cross section of the strand main body, and hooping the cross section of the strand main body into a circle by the winding steel wires;
preparing an intermediate layer: winding high-temperature resistant belts on the outer side surface of the spiral cylinder for winding the steel wire one by one to form a high-temperature resistant layer, wherein the high-temperature resistant layer is provided with at least three sections, two ends of each section of the high-temperature resistant layer are respectively fastened and fixed on the spiral cylinder for winding the steel wire by binding belts, and a gap is reserved between two adjacent sections of the high-temperature resistant layers;
winding a transition belt on the outer side surface of the high-temperature resistant layer one by one to form a transition layer, wherein the winding direction of the transition belt is the same as that of the high-temperature resistant belt;
preparing an outer layer: and winding the wrapping tape on the outer side surface of the transition layer one by one, wherein the winding direction of the wrapping tape is the same as that of the high-temperature resistant tape.
The manufacturing method of the high-temperature resistant main cable is characterized by comprising the following steps: secondly, selecting a ceramic composite heat-insulation wrapping belt or basalt fiber fireproof cloth as the high-temperature resistant belt, wherein the heat conductivity coefficient of the high-temperature resistant belt at the normal temperature of 25 ℃ is 0.01w/(m DEG C) to 0.025w/(m DEG C), and the transition belt is selected from polyester fibers or composite fibers of polyester fibers and high-strength high-modulus polyvinyl alcohol fibers; and thirdly, selecting chlorosulfonated polyethylene wrapping belts as wrapping belts.
The manufacturing method of the high-temperature resistant main cable is characterized by comprising the following steps:
and step two, the gap between two adjacent sections of high-temperature-resistant layers is not more than 5mm, and tension not less than 45N is applied to the transition belt when the transition belt is wound.
In order to meet the requirements of high temperature resistance and fire prevention, the winding directions of the high temperature resistant layer and the transition layer are limited during manufacturing, so that the problem that the structure is loose due to rolling of the roller during later-stage wrapping belt construction is avoided, the protection effect of the high temperature resistant layer of the main cable is improved, and the service life of the high temperature resistant layer is prolonged.
The invention has the beneficial effects that: simple structure, convenient construction, high efficiency and high quality.
Drawings
Figure 1 is a schematic structural view in the front view direction of the present invention,
figure 2 is a schematic cross-sectional view of the present invention,
figure 3 is an enlarged view of a portion of area a of figure 2,
fig. 4 is a schematic view of a main cable wire constituting a strand unit in the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
A high temperature resistant main push-towing rope, includes main push-towing rope steel wire 1, winding steel wire 2, high temperature resistant layer 3, transition layer 4 and twines band 5, as shown in fig. 1-4, the concrete structure is:
the main cable wires 1 form strand units 10 with a regular hexagon cross section in a way that the outer side surfaces are mutually attached, each strand unit 10 forms a strand main body 20 in a way that the outer side surfaces are mutually attached,
the winding steel wire 2 is wound on the outer side surface of the strand body 20 one by one, the winding steel wire 2 forms a spiral cylinder hooped on the outer side surface of the strand body 20, the cross section of the spiral cylinder of the winding steel wire 2 and the cross section of the strand body 20 are perpendicular to each other, the winding steel wire 2 hoops the cross section of the strand body 20 in a circular shape,
the high temperature resistant layer 3 is divided into at least three sections, each section of the high temperature resistant layer 3 is sequentially arranged on the outer side surface of the spiral cylinder of the winding steel wire 2 at intervals, and each section of the high temperature resistant layer 3 is formed by winding a high temperature resistant belt 31 one by one and wrapping the winding steel wire 2;
the transition layer 4 is formed by winding the transition belt 41 one by one and coating the transition belt 41 on each section of the high temperature resistant layer 3, the winding belt 5 is wound on the outer side surface of the transition layer 4 one by one and completely coats the transition layer 4, and the winding directions of the high temperature resistant belt 31, the transition belt 41 and the winding belt 5 are the same.
In this embodiment: each main cable wire 1 constitutes a strand unit 10 having a regular hexagonal cross section as follows:
as shown in fig. 4: main cable steel wire1 is divided into (2k-1) layers, 2k-1 main cable steel wires 1 are sequentially arranged on the middle layer, namely the k-th layer, the (k-1) layers of main cable steel wires 1 are sequentially arranged from the middle layer to two outer sides respectively, the number of the main cable steel wires 1 on each outer layer is reduced by one, the main cable steel wires 1 on two adjacent layers are staggered and tangentially arranged, and thus (3 k-1) layers are arranged2-3k +1) main cable wires 1 form a strand unit 10 with a regular hexagonal cross section; fig. 4 illustrates k =3, which constitutes a total number of 19 strand units 10, where k is a positive integer;
in this embodiment: the thickness of each section of the high temperature resistant layer 3 is 2 mm-10 mm, the width of each section of the high temperature resistant layer 3 is 200 mm-800 mm, the gap between two adjacent sections of the high temperature resistant layers 3 is not more than 5mm, and the thermal conductivity coefficient of the high temperature resistant layer 3 at the normal temperature of 25 ℃ is 0.01w/(m DEG C) to 0.025w/(m DEG C).
In this embodiment: the high-temperature resistant belt 31 is made of ceramic composite heat-insulation belt or basalt fiber fireproof cloth, the heat conductivity coefficient of the high-temperature resistant belt 31 at the normal temperature of 25 ℃ is 0.01w/(m DEG C) -0.025 w/(m DEG C), the transition belt 41 is made of polyester fiber or composite fiber of polyester fiber and high-strength high-modulus polyvinyl alcohol fiber, and the winding belt (5) is made of chlorosulfonated polyethylene belt.
This example was manufactured as shown in fig. 1: the method is implemented in sequence according to the following steps:
preparing a cable strand: forming strand units 10 with regular hexagon cross sections by mutually attaching the outer sides of all the main cable wires 1, forming a strand main body 20 by similarly mutually attaching the outer sides of all the strand units 10, winding the winding wires 2 on the outer side of the strand main body 20 one by one, forming spiral cylinders hooped on the outer side of the strand main body 20 by the winding wires 2, enabling the cross sections of the spiral cylinders of the winding wires 2 to be perpendicular to the cross sections of the strand main body 20, and hooping the cross sections of the strand main body 20 into a circular shape by the winding wires 2;
preparing an intermediate layer: winding a high-temperature resistant belt 31 on the outer side surface of the spiral cylinder of the winding steel wire 2 one by one to form a high-temperature resistant layer 3, wherein the high-temperature resistant layer 3 is at least three sections, two ends of each section of the high-temperature resistant layer 3 are respectively fastened and fixed on the spiral cylinder of the winding steel wire 2 by binding belts 6, and a gap which is not more than 5mm is reserved between two adjacent sections of the high-temperature resistant layers 3;
winding a transition belt 41 on the outer side surface of the high-temperature resistant layer 3 one by one to form a transition layer 4, wherein the winding direction of the transition belt 41 is the same as that of the high-temperature resistant belt 31, and tension not less than 45N is applied to the transition belt 41 when the transition belt 41 is wound;
the high-temperature resistant belt 31 is made of ceramic composite heat-insulation belt or basalt fiber fireproof cloth, the heat conductivity coefficient of the high-temperature resistant belt 31 is 0.01w/(m DEG C) -0.025 w/(m DEG C) at the normal temperature of 25 ℃, and the transition belt 41 is made of polyester fiber or composite fiber of polyester fiber and high-strength high-modulus polyvinyl alcohol fiber;
preparing an outer layer: and winding the wrapping belt 5 on the outer side surface of the transition layer 4 one by one, wherein the winding direction of the wrapping belt 5 is the same as that of the high-temperature resistant belt 31, and the wrapping belt 5 is made of chlorosulfonated polyethylene.
The arrow a in fig. 1 shows the flow direction at the time of manufacturing.
Claims (7)
1. The utility model provides a high temperature resistant main push-towing rope, includes main push-towing rope steel wire (1), characterized by: also comprises a winding steel wire (2), a high temperature resistant layer (3), a transition layer (4) and a winding belt (5),
the main cable wires (1) form strand units (10) with regular hexagon cross sections in a mode that the outer side surfaces are mutually attached, each strand unit (10) forms a strand main body (20) in a mode that the outer side surfaces are mutually attached,
the winding steel wire (2) is wound on the outer side surface of the strand main body (20) circle by circle, the winding steel wire (2) forms a spiral cylinder hooped on the outer side surface of the strand main body (20), the cross section of the spiral cylinder of the winding steel wire (2) is vertical to that of the strand main body (20), the winding steel wire (2) hoops the cross section of the strand main body (20) into a round shape,
the high temperature resistant layer (3) is divided into at least three sections, each section of the high temperature resistant layer (3) is sequentially arranged on the outer side surface of the spiral cylinder of the winding steel wire (2) at intervals, and each section of the high temperature resistant layer (3) is formed by winding a high temperature resistant belt (31) one by one and coating the high temperature resistant belt outside the winding steel wire (2);
the transition layer (4) is formed by winding the transition belt (41) one by one and coating the transition belt (41) outside each section of high temperature resistant layer (3), the wrapping belt (5) is wound on the outer side surface of the transition layer (4) one by one and completely coats the transition layer (4), and the winding directions of the high temperature resistant belt (31), the transition belt (41) and the wrapping belt (5) are the same.
2. A high temperature resistant main cable according to claim 1, wherein: each main cable steel wire (1) forms a strand unit (10) with a regular hexagon cross section in the following way:
the main cable steel wires (1) are divided into (2k-1) layers, 2k-1 main cable steel wires (1) are sequentially arranged in the middle layer, namely the k-th layer, the (k-1) layers of main cable steel wires (1) are sequentially arranged from the middle layer to two outer sides respectively, the number of the main cable steel wires (1) in each outer layer is reduced by one, the main cable steel wires (1) in two adjacent layers are arranged in a staggered and tangent mode, and therefore the (3k2-3k +1) main cable steel wires (1) form a strand unit (10) with a regular hexagonal cross section, wherein k is a positive integer;
the thickness of each section of the high temperature resistant layer (3) is 2 mm-10 mm, the width of each section of the high temperature resistant layer (3) is 200 mm-800 mm, the gap between two adjacent sections of the high temperature resistant layers (3) is not more than 5mm, and the thermal conductivity coefficient of the high temperature resistant layer (3) at 25 ℃ is 0.01w/(m DEG C) to 0.025w/(m DEG C).
3. A high temperature resistant main cable according to claim 1 or 2, wherein: the high-temperature resistant belt (31) is made of ceramic composite heat-insulation belting or basalt fiber fireproof cloth, the transition belt (41) is made of polyester fiber or composite fiber of polyester fiber and high-strength high-modulus polyvinyl alcohol fiber, and the wrapping belt (5) is made of chlorosulfonated polyethylene belting.
4. A method of manufacturing a high temperature resistant main cable according to claim 1 or 2, wherein: the method is implemented in sequence according to the following steps:
preparing a cable strand: forming strand units (10) with regular hexagon cross sections by mutually attaching the outer sides of all main cable steel wires (1), forming strand main bodies (20) by mutually attaching the outer sides of all the strand units (10) in the same way, winding steel wires (2) on the outer sides of the strand main bodies (20) one by one, forming spiral cylinders hooped on the outer sides of the strand main bodies (20) by the winding steel wires (2), enabling the cross sections of the spiral cylinders of the winding steel wires (2) to be perpendicular to the cross sections of the strand main bodies (20), and hooping the cross sections of the strand main bodies (20) into circles by the winding steel wires (2);
preparing an intermediate layer: winding high-temperature resistant belts (31) on the outer side surface of the spiral cylinder of the winding steel wire (2) one by one to form a high-temperature resistant layer (3), wherein the high-temperature resistant layer (3) is provided with at least three sections, two ends of each section of the high-temperature resistant layer (3) are respectively fastened and fixed on the spiral cylinder of the winding steel wire (2) by binding belts (6), and a gap is reserved between two adjacent sections of the high-temperature resistant layers (3);
winding a transition belt (41) on the outer side surface of the high-temperature resistant layer (3) one by one to form a transition layer (4), wherein the winding direction of the transition belt (41) is the same as that of the high-temperature resistant belt (31);
preparing an outer layer: and winding the wrapping belt (5) on the outer side surface of the transition layer (4) one by one, wherein the winding direction of the wrapping belt (5) is the same as that of the high-temperature resistant belt (31).
5. The method for manufacturing a high-temperature resistant main cable according to claim 4, wherein: in the second step, a ceramic composite heat-insulating wrapping belt or basalt fiber fireproof cloth is selected as the high-temperature resistant belt (31), and polyester fiber or polyester fiber and high-strength high-modulus polyvinyl alcohol fiber composite fiber is selected as the transition belt (41); and thirdly, selecting chlorosulfonated polyethylene wrapping belts as the wrapping belts (5).
6. The method for manufacturing a high-temperature resistant main cable according to claim 4, wherein:
and step two, the gap between two adjacent sections of high temperature resistant layers (3) is not more than 5mm, and tension not less than 45N is applied to the transition belt (41) when the transition belt (41) is wound.
7. The method for manufacturing a high-temperature resistant main cable according to claim 5, wherein:
and step two, the gap between two adjacent sections of high temperature resistant layers (3) is not more than 5mm, and tension not less than 45N is applied to the transition belt (41) when the transition belt (41) is wound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010616891.9A CN113863138A (en) | 2020-06-30 | 2020-06-30 | High-temperature-resistant main cable and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010616891.9A CN113863138A (en) | 2020-06-30 | 2020-06-30 | High-temperature-resistant main cable and manufacturing method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113863138A true CN113863138A (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010616891.9A Pending CN113863138A (en) | 2020-06-30 | 2020-06-30 | High-temperature-resistant main cable and manufacturing method thereof |
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| Country | Link |
|---|---|
| CN (1) | CN113863138A (en) |
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2020
- 2020-06-30 CN CN202010616891.9A patent/CN113863138A/en active Pending
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