Self-adaptive intelligent catwalk steel wire rope

Abstract

The invention relates to the technical field of bridge construction, in particular to a self-adaptive intelligent catwalk steel wire rope. Comprising a central strand and a plurality of ordinary strands, and the central strand comprises a core strand located at the axis and a plurality of transmission strands surrounding the outer side of the core strand in the circumferential direction; an optical fiber sensor which is arranged in a full-length manner and is used for monitoring the steel wire rope penetrates through the core strand; the transmission strand is in transmission connection with the core strand and drives the core strand to rotate around the axis under the action of external torsion; the ordinary strands surround the outer side of the center strand in the circumferential direction to form a steel wire rope structure, and the center strand can be connected among the ordinary strands in the mode of rotating around the axis of the center strand. The catwalk steel wire rope is simple in structure and very easy to install, manufacture and assemble, the steel wire rope can be monitored in real time, early warning can be given out in time, a user is reminded, safety accidents are avoided, meanwhile, the catwalk steel wire rope can adapt to torsional deformation of the steel wire rope, the internal optical fiber sensor is not prone to damage, and the service life is long.

Description

Technical Field

[0001] The present application relates to the technical field of bridge construction, and specifically to an adaptive smart catwalk wire rope. Background Art

[0002] During the construction of the suspension bridge, there is a temporary construction catwalk. The catwalk is a temporary construction walkway erected under the main cable and parallel to the main cable during the construction of the suspension bridge. Construction workers complete the cable strand pulling, strand adjustment, shaping and saddle, cable tightening, cable clamp and sling installation, box girder hoisting and site connection, main cable winding, protective coating and other construction projects on the catwalk.

[0003] Catwalks are important temporary structures on suspension bridges. Catwalks are temporary construction paths that facilitate workers to erect suspension bridges. Catwalks are erected using tools such as winches, wire ropes, and fall chains to quickly complete the erection of catwalks. Wire ropes are spiral steel wire bundles that are made by twisting together steel wires that meet the requirements for mechanical properties and geometric dimensions according to certain rules. Wire ropes are composed of steel wires, rope cores, and grease. Wire ropes are first twisted into strands from multiple layers of steel wires, and then twisted into a spiral rope with a certain number of strands around the rope core. In material handling machinery, they are used for lifting, traction, tensioning, and carrying. Wire ropes have high strength, light weight, stable operation, and are not easy to break suddenly, so they work reliably.

[0004] As a temporary facility for the construction of suspension bridges, the safety of catwalk wire ropes is of vital importance. Although the design and construction of catwalks require sufficient strength and wind resistance, they may still face safety challenges in actual use, especially in strong winds or extreme weather conditions, the stability of catwalk wire ropes may be affected, thereby increasing the safety risks of construction workers. In addition, problems such as easy rust and poor fire resistance of catwalk wire ropes are becoming increasingly prominent. At present, there are also technologies that can monitor cables in real time, but they are mainly used for cables of permanent structures, such as inclined cables. This cable structure is different from the structure of catwalk wire ropes. Catwalk wire ropes will be torsionally deformed during use. If they are arranged according to the structure of conventional smart cables, the signal collection optical fiber and other structures inside the cable may be damaged due to torsion, and it is difficult to achieve the required information collection effect. Therefore, it is necessary to develop a smart catwalk wire rope for suspension bridges. The smart catwalk wire rope can monitor the physical parameters of the wire rope itself, such as stress, strain, temperature, humidity, etc. in real time, and make real-time warnings. It can adapt to problems such as torsion deformation, ensure the safety of construction workers, and minimize property losses. Summary of the invention

[0005] The purpose of this application is to address the deficiencies of the above-mentioned background technology and to provide an adaptive smart catwalk wire rope.

[0006] The technical solution of the present application is: an adaptive intelligent catwalk wire rope, comprising:

[0007] The center strand comprises a core strand located at the axis and a plurality of transmission strands circumferentially surrounding the outer side of the core strand; the core strand is provided with an optical fiber sensor arranged throughout the length for monitoring the steel wire rope; the transmission strand is in transmission connection with the core strand and drives the core strand to rotate around the axis when subjected to external torsion;

[0008] A plurality of common strands, the plurality of common strands circumferentially surrounding the outside of the central strand to form a wire rope structure;

[0009] The central strand is rotatable around its own axis and is connected between a plurality of common strands.

[0010] According to an adaptive smart catwalk wire rope provided in the present application, the transmission strand is a bar-shaped gear arranged along an axial direction parallel to the core strand and rotatable around its own axis; a rack structure meshing with the gear is provided on the circumferential outer side of the core strand.

[0011] According to an adaptive smart catwalk steel wire rope provided by the present application, the central strand also includes carbon fiber cloth; the carbon fiber cloth is wrapped around the outside of all gears to press the gears against the core strand so that the gears are tightly meshed with the rack structure.

[0012] According to the adaptive smart catwalk steel wire rope provided in the present application, lubricating oil is filled between the core strand and the gear.

[0013] According to an adaptive smart catwalk steel wire rope provided by the present application, the outer side of the optical fiber sensor is wrapped with cured glue to form a monitoring strand located at the axis of the core strand.

[0014] According to an adaptive smart catwalk wire rope provided in the present application, the optical fiber sensor includes a strain optical fiber for obtaining the stress of the wire rope and a temperature and humidity optical fiber for obtaining the temperature and humidity of the wire rope; the strain optical fiber and the temperature and humidity optical fiber are symmetrically arranged with the monitoring strand axis as the center, and a thin steel plate is provided between the strain optical fiber and the temperature and humidity optical fiber to serve as a separator.

[0015] According to an adaptive smart catwalk steel wire rope provided in the present application, the steel wire rope includes a plurality of segments, and adjacent segments are connected as a whole through a connecting structure.

[0016] According to an adaptive smart catwalk steel wire rope provided in the present application, the connection structure includes a flange plate arranged at the axial end of the segment, and adjacent segments are connected as a whole in the axial direction by bolts passing through the flange plate.

[0017] According to the adaptive smart catwalk steel wire rope provided in the present application, the flange is fixedly connected to the common strand end inside the segment by molten aluminum poured on the flange.

[0018] According to an adaptive smart catwalk wire rope provided in the present application, optical fiber sensors of adjacent segments are connected as one by welding.

[0019] The advantages of the present application are as follows: 1. The catwalk steel wire rope constructed by the present application can monitor the steel wire rope in real time by setting an optical fiber sensor, can obtain various parameters of the current catwalk steel wire rope in real time, can give a timely warning when there is a problem with the steel wire rope, ensure the life safety of construction personnel, and minimize property losses. At the same time, the catwalk steel wire rope of the present application is provided with a transmission structure in the core strand, and the transmission structure can convert the torsional force of the catwalk steel wire rope into a force driving the core strand to rotate. The core strand can rotate by itself, thereby avoiding damage to the internal optical fiber sensor. It can adapt to various application scenarios of the catwalk steel wire rope, accurately monitor the steel wire rope, and is not easy to be damaged, which has great promotion value.

[0020] 2. The transmission structure constructed on the outside of the core strand in the present application is extremely simple. The core strand and the transmission strand are designed as a gear rack transmission structure. When the wire rope is subjected to external torsion, the transmission strand transmits the torsion of the wire rope to the core strand, which can drive the core strand to rotate around the axis. The optical fiber sensor in the core strand follows the rotation and will not be damaged by the torsion. The structure is simple, the force is good, the adaptability is excellent, and it is also very easy to assemble.

[0021] 3. In the present application, carbon fiber cloth is wound around the outside of the center strand. The carbon fiber cloth can tightly connect the transmission strand and the core strand, making the gear rack structure more closely matched. The torsional effect of the wire rope can be easily transmitted to the core strand through the transmission strand. The core strand can better dissipate the torsional effect, and the problem of twisting and deformation of the optical fiber sensor is not easy to occur.

[0022] 4. In the present application, lubricating oil is filled between the core strand and the transmission strand, and the lubricating oil makes the meshing transmission structure between the core strand and the transmission strand more slippery, the rotation between the transmission strand and the core strand is smoother, the rotation between them is not easy to be damaged, and the structural stability is better;

[0023] 5. The present application wraps the optical fiber sensor with a curing adhesive to form a monitoring strand at the axial position of the core strand. The arrangement of the optical fiber sensor is very simple. The connection between the optical fiber sensor and the core strand is flexible, and the force-bearing structure is good, which can effectively buffer various impacts and is not prone to damage.

[0024] 6. The optical fiber sensor of the present application includes strain optical fiber and temperature and humidity optical fiber, which can monitor various application parameters of the steel wire rope. The use status of the steel wire rope can be obtained in real time through the strain optical fiber and the temperature and humidity optical fiber, and timely warning can be given to avoid safety accidents. The arrangement structure of the strain optical fiber and the temperature and humidity optical fiber avoids interference between each other;

[0025] 7. The steel wire rope of the present application is axially connected by multiple segments, and the steel wire rope is split into multiple segments, so that production and assembly become easier, and the steel wire rope that meets the length requirements can be prepared according to demand, which greatly reduces the difficulty of steel wire rope production, manufacturing and assembly;

[0026] 8. The method of connecting adjacent segments in the present application is very simple. By setting flanges at the ends of the segments and connecting adjacent segments using adjacent flanges, the overall assembly is very simple, the segment connection strength is high, and the force bearing performance is good;

[0027] 9. The method of connecting the common stock with the flange of the present application is very simple. By pouring aluminum liquid on the steel wire of the common stock and fixing it with the flange, the flange can be easily installed at the end of the segment, making the subsequent segment connection easier;

[0028] 10. The present application connects the fiber optic sensors of adjacent segments together by means of fusion splicing to form fiber optic sensors arranged throughout the length of the wire rope. The segments are very easy to assemble and do not affect the arrangement of the fiber optic sensors in the wire rope.

[0029] The catwalk wire rope of the present application has a simple structure and is very easy to install, manufacture and assemble. It can monitor the wire rope in real time and issue early warnings in time to remind users to avoid safety accidents. At the same time, the catwalk wire rope of the present application can adapt to the torsional deformation of the wire rope, and the internal optical fiber sensor is not easy to be damaged and has a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 : Schematic diagram of the core stock structure of this application;

[0031] Figure 2 : Schematic diagram of the central strand structure of this application;

[0032] Figure 3 : Schematic diagram of the catwalk wire rope structure of the present application;

[0033] Figure 4 : Schematic diagram of the segment and flange structure of the present application;

[0034] Figure 5 : Schematic diagram of the adjacent segment connection structure of the present application;

[0035] Among them: 1—common stock; 2—core stock; 3—transmission stock; 4—carbon fiber cloth; 5—lubricating oil; 6—curing glue; 7—thin steel plate; 8—strain optical fiber; 9—temperature and humidity optical fiber; 10—flange; 11—bolt. DETAILED DESCRIPTION

[0036] The embodiments of the present application are described in detail below, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0037] In the description of the present application, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] The present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0040] The present application relates to an adaptive intelligent catwalk wire rope. The wire rope of the present application is provided with a fiber optic sensor, which can be used to collect data of the catwalk wire rope in real time. By analyzing the collected data, the current use status of the wire rope can be accurately judged, and timely warnings can be issued when problems occur with the wire rope, thereby ensuring the safety of construction workers and minimizing property losses. In addition, the core strand of the fiber optic sensor installed inside the wire rope of the present application will rotate around its own axis when subjected to torsion, thereby dissipating the external torsion force, and the fiber optic sensor will not be entangled and damaged. The fiber optic sensor can always maintain a good use state, collect data of the wire rope in real time, and can cope with various application scenarios.

[0041] Specifically, Figures 1 to 5As shown, the steel wire rope adapted to the smart catwalk of this embodiment includes a central strand and a plurality of common strands 1, wherein the central strand includes a core strand 2 located at the axis and a plurality of transmission strands 3 circumferentially surrounding the outer side of the core strand 2, and a fiber optic sensor arranged throughout the core strand 2 for monitoring the steel wire rope is inserted into the core strand 2, and the transmission strand 3 is transmission-connected with the core strand 2 and drives the core strand 2 to rotate around the axis when subjected to external torsion. The central strand is a cable arranged at the axis position of the entire steel wire rope, and serves as a monitoring unit for the entire steel wire rope. The stress, strain, temperature, humidity and other information of the steel wire rope are collected in real time through the fiber optic sensor, and then the use status of the steel wire rope is judged based on the collected data information. Data receiving devices are arranged at both ends of the fiber optic sensor in the central strand, and the data collected by the fiber optic sensor will be transmitted to the data receiving device, and then the data processing is performed. The core strand 2 and the transmission strand 3 in the center strand are transmission connected. The core strand 2 can rotate around the axis in the area surrounded by the transmission strand 3, that is, the core strand 2 can rotate relative to the entire wire rope. This rotation can eliminate the torsional effect of the wire rope and avoid damage to the core strand 2 with the optical fiber sensor installed inside due to following the torsion of the wire rope. The rotation of the wire rope and the core strand 2 around the axis is asynchronous.

[0042] The steel wire rope of the present application is provided with a plurality of common strands 1 on the circumferential outer side of the center strand, and the plurality of common strands 1 are circumferentially arranged around the outer side of the center strand to form a steel wire rope structure, and the center strand can be connected between the plurality of common strands rotatable around its own axis. The common strand 1 itself is a cable structure formed by winding a plurality of steel wire ropes, and a plurality of common strands 1 are arranged around the center strand to form a catwalk steel wire rope. The common strand 1 is the force-bearing part of the entire catwalk steel wire rope. The center strand is a structure connected to the common strand 1 and can rotate relatively, and the two ends of the center strand are free ends, that is, the rotation of the center strand is relatively independent of the rotation of the common strand 1 around the axis. When the steel wire rope is subjected to circumferential torsion, the center strand will rotate relative to the common strand around the axis, and the core strand 2 in the center strand can also rotate around the axis by itself after being acted upon by the transmission strand 3, which can well eliminate the circumferential torsion of the steel wire rope and is not prone to damage.

[0043] In some embodiments of the present application, the present embodiment optimizes the structure of the transmission strand 3, specifically, Figure 2 and 3As shown, the transmission strand 3 of this embodiment is a bar-shaped gear structure that can rotate around its own axis and is arranged along the axial direction parallel to the core strand 2, and a rack structure that meshes with the gear structure is arranged on the outer side of the circumference of the core strand 2. That is, the transmission strand 3 itself is a bar-shaped gear structure that can rotate around its own axis. When the catwalk wire rope is subjected to torsion, the common strand 1 outside the transmission strand 3 produces extrusion or torsion forces on the transmission strand 3. These forces act on the transmission strand 3 to drive the transmission strand 3 to rotate around its own axis. The transmission strand 3 itself and the core strand 2 are meshed transmission connections of gears and racks. The rotation of the transmission strand 3 around its own axis will drive the core strand 3 in the middle to rotate around the axis. The rotation of the core strand 3 around the axis is idling, which is relatively independent of the circumferential torsion of the catwalk wire rope. The optical fiber sensor in the core strand 3 will not be damaged by torsion.

[0044] In a further embodiment of the present application, the structure of the core strand 2 is optimized. Specifically, Figure 1 As shown, the outer side of the optical fiber sensor is wrapped with curing glue 6 to form a monitoring strand at the axis of the core strand 2. The optical fiber sensor is fixed and formed by curing glue 6 to form a strip-shaped monitoring strand, and the curing glue 6 can protect the monitoring strand to avoid damage to the optical fiber sensor during the assembly process.

[0045] After the monitoring strand is formed, it is fixed to the axis of the core strand 2 to form a core strand 2 with a monitoring function inside and a rack structure outside. The transmission strand 3 is then assembled around the core strand 2, and the gear structures of the multiple transmission strands 3 are meshed and connected with the rack structure on the core strand 2.

[0046] In addition, in order to facilitate the smoothness of the meshing transmission connection between the transmission strand 3 and the core strand 2, the present embodiment fills lubricating oil 5 between the core strand 2 and the transmission strand 3. Filling the lubricating oil 5 can ensure that the rotation between the core strand 2 and the transmission strand 3 is smoother and is not prone to problems such as jamming.

[0047] In order to ensure the tightness of the connection between the transmission strands 3 and the core strands 2, the center strand of this embodiment also includes a carbon fiber cloth 4, which is wrapped around the outside of all the transmission strands 3 to press the transmission strands 3 against the core strands 2 so that the gear structure and the rack structure are tightly meshed.

[0048] In a further embodiment of the present application, the present embodiment optimizes the above-mentioned optical fiber sensor, such as Figure 1 As shown, the optical fiber sensor includes a strain optical fiber 8 for obtaining the stress of the steel wire rope and a temperature and humidity optical fiber 9 for obtaining the temperature and humidity of the steel wire rope. The strain optical fiber 8 and the temperature and humidity optical fiber 9 are symmetrically arranged with the monitoring strand axis as the center, and a thin steel plate 7 is provided between the strain optical fiber 8 and the temperature and humidity optical fiber 9 to serve as a separator.

[0049] The strain optical fiber 8 and the temperature and humidity optical fiber 9 are arranged at intervals from each other, with sufficient gap between them and separated by a thin steel plate 7, so there will be no interference between them. Moreover, the two are fixed and restricted by a curing glue 6 to form an overall structure. No matter how the core strand 2 is twisted, the strain optical fiber 8 and the temperature and humidity optical fiber 9 will not interfere with each other, and the stability of data acquisition is extremely good.

[0050] In other embodiments of the present application, this embodiment optimizes the overall structure of the catwalk steel wire rope. The steel wire rope of this embodiment includes multiple segments. The segments of this embodiment are constructed according to the combined structure of the common strand 1 and the center strand mentioned above. Adjacent segments are connected as a whole through a connecting structure to finally form an integral catwalk steel wire rope.

[0051] The wire rope is divided into multiple standard segments, which facilitates the production, processing and assembly of the wire rope. The catwalk wire rope of the required length can be obtained by selecting the appropriate number of segments for assembly according to actual needs. The processing, production and assembly of a single standard segment become simpler.

[0052] The optical fiber sensors of adjacent sections are connected as a whole by fusion splicing, so that only data receiving devices need to be arranged at both ends of the wire rope to receive the data collected by the optical fiber sensors of all sections in the wire rope.

[0053] like Figure 4 and 5 As shown, the connection structure of this embodiment includes a flange 10 arranged at the axial end of the segment, and adjacent segments are connected as a whole in the axial direction by bolts 11 penetrating the flange 10. The flange 10 is fixedly connected to the end of the common stock 1 inside the segment by aluminum liquid poured on the flange 10.

[0054] In actual production, you can follow the steps below:

[0055] S1. Making core stocks

[0056] According to the required diameter of the finished catwalk wire rope, a circular hole gear with 28 gears is customized, and the hollow circular hole is divided into two parts by a thin steel plate. The strain optical fiber 8 and the temperature and humidity optical fiber 9 are respectively buried in the two semicircular holes, and a high elastic modulus fast curing glue 6 is poured into the hole to form the required core strand 2 (compared with the traditional process of notching steel wire, this structure places the optical fiber in the core area of ​​the structure, which can better protect the "fragile" optical fiber);

[0057] S2. Production Center Unit

[0058] The prepared core strand 2 is rolled into a roll to form a core strand wheel, and then the core strand wheel and the customized 7 round hole gears with 18 gears (transmission strand 2) are installed on the strand machine's basket, and the safety pin is inserted; finally, the core strand 2 and the transmission strand 3 are passed through the cylinder and the distribution plate in turn to avoid crossing; the core strand 2 and the transmission strand 3 are passed through the fuselage, the pre-deformer, and the wire pressing shoe, and tied to the lead wire. After the strand rope is opened for 5 to 10 meters, the strand diameter, twist direction, twist pitch, and flatness are checked. After confirming that they are correct, a special strand core is formed, and it is wrapped with high-toughness carbon fiber cloth 4 and collected in the special strand core wheel;

[0059] This special drum core can ensure that when the wire rope is subjected to external force, the core strand 2 is driven to rotate through the rotation of the transmission strand 3 during multiple torsion processes; since both ends of the core strand 2 are free ends, the core strand 2 can be ensured to rotate idly and not be affected by the circumferential torque, which ensures the safety of the core strand 2 and can further improve the accuracy of the radial force measurement of the wire rope;

[0060] S3. Making wire rope

[0061] This phase is mainly the rope closing phase, which is divided into the first rope closing and the second rope closing;

[0062] First rope closing: install the common 6-strand 29-wire rope wheel (national standard) and the special strand core wheel on the rope machine's basket, and insert the safety pin; pass the common strand 1 and the center strand through the machine body, pre-deformer, and wire pressing shoe, and tie them to the lead wire; after the strand rope is opened for 5 to 10 meters, stop and check the diameter, surface, twist direction, twist length, and flatness. After confirming that they are correct, reel them into the take-up wheel to form multiple segment wire ropes, among which the 29-wire strand rope structure is 1+7+7 / 7+14;

[0063] Second rope closing: Pour molten aluminum on flange 10, such as Figure 4 The position A shown is the position for pouring iron-aluminum alloy water (corresponding to the position of common strand 1), with a depth of about 5 mm; the iron-aluminum alloy water is used to cool the common strand 1, so that the strands of the common strand 1 are firmly bonded to the flange 10, and then the flanges 10 of the two adjacent segments are connected by high-strength bolts 11, and the anchor glue is used for leveling to connect the two adjacent segments. The interrupted strain optical fiber 8 and temperature and humidity optical fiber 9 can be fused together using an optical fiber fusion splicer, and the optical fiber interruption point is protected with a heat shrink tube, and finally a smart catwalk wire rope is formed;

[0064] Smart wire ropes adopt standardized design and production, which is convenient for mass production and installation, reducing costs. At the same time, it reduces material waste and construction waste during the construction process;

[0065] S4. Experiment

[0066] This stage is mainly the finished product test stage; first, connect the laptop to the fiber optic demodulator, then connect the fiber optic demodulator to the catwalk wire rope, and finally carry out the loading test;

[0067] The specific test methods are as follows:

[0068] S41. Pre-tension the catwalk wire rope through the tensioning platform for 3 times, each time holding the load for 30 minutes;

[0069] S42, based on 80% of the breaking load, divided into 5 stages for step-by-step tensioning, each stage holding the load for 5 minutes;

[0070] S43, after the test is completed, the tension is unloaded, and step S42 is repeated twice, and the test is completed.

[0071] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present application. The present application may have various changes and improvements without departing from the spirit and scope of the present application, and these changes and improvements fall within the scope of the present application to be protected. The scope of protection claimed in the present application is defined by the attached claims and their equivalents.

Claims

1. An adaptive intelligent catwalk wire rope, characterized by: include, The central strand comprises a core strand (2) located at the axis and a plurality of transmission strands (3) circumferentially surrounding the outer side of the core strand (2); the core strand (2) is provided with an optical fiber sensor arranged throughout the length of the wire rope for monitoring the wire rope; the transmission strand (3) is in transmission connection with the core strand (2) and drives the core strand (2) to rotate around the axis when subjected to external torsion; A plurality of common strands (1), wherein the plurality of common strands (1) surround the outside of the central strand in the circumferential direction to form a steel wire rope structure; The central strand is rotatable around its own axis and is connected between a plurality of common strands (1).

2. The self-adaptive smart catwalk wire rope according to claim 1, characterized in that: The transmission strand (3) is a bar-shaped gear structure arranged in parallel with the axial direction of the core strand (2) and rotatable around its own axis; a rack structure meshing with the gear structure is provided on the circumferential outer side of the core strand (2).

3. The self-adaptive smart catwalk wire rope according to claim 2, characterized in that: The central strand also includes a carbon fiber cloth (4); the carbon fiber cloth (4) is wound around the outside of all the transmission strands (3) to press the transmission strands (3) onto the core strand (2) so that the gear structure and the rack structure are tightly meshed.

4. An adaptive smart catwalk steel wire rope as claimed in claim 2 or 3, characterized in that: Lubricating oil (5) is filled between the core strand (2) and the transmission strand (3).

5. The self-adaptive smart catwalk wire rope according to claim 1, characterized in that: The outer side of the optical fiber sensor is wrapped with a curing glue (6) to form a monitoring strand located at the axis of the core strand (2).

6. The self-adaptive smart catwalk steel wire rope according to claim 1 or 5, characterized in that: The optical fiber sensor comprises a strain optical fiber (8) for obtaining the stress of the steel wire rope and a temperature and humidity optical fiber (9) for obtaining the temperature and humidity of the steel wire rope; the strain optical fiber (8) and the temperature and humidity optical fiber (9) are symmetrically arranged with the monitoring strand axis as the center, and a thin steel plate (7) is provided between the strain optical fiber (8) and the temperature and humidity optical fiber (9) for separation.

7. The self-adaptive smart catwalk wire rope according to claim 1, characterized in that: The steel wire rope comprises a plurality of segments, and adjacent segments are connected as a whole via a connecting structure.

8. The self-adaptive smart catwalk wire rope according to claim 7, characterized in that: The connection structure comprises a flange (10) arranged at the axial end of the segment, and adjacent segments are connected as a whole in the axial direction by bolts (11) passing through the flange (10).

9. The self-adaptive smart catwalk steel wire rope according to claim 8, characterized in that: The flange (10) is fixedly connected to the end of the common strand (1) inside the segment by means of molten aluminum poured on the flange (10).

10. The self-adaptive smart catwalk steel wire rope according to any one of claims 7 to 9, characterized in that: The optical fiber sensors of adjacent sections are connected as a whole by fusion splicing.

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