High-performance steel strand structure

Abstract

The invention discloses a high-performance steel strand structure, relates to the technical field of steel strands, and aims to solve the problems in the prior art that the stability of the whole structure of the steel strand is weakened and the due bearing capacity of the steel strand is difficult to give full play due to poor synergistic stress performance among steel wires of the steel strand. At least six outer-layer steel wires made of high-carbon steel surround the center steel wire, the outer-layer steel wires sequentially surround the center steel wire in a spiral mode, and the sides, close to the center steel wire, of the outer-layer steel wires are attached to the outer wall of the center steel wire. The sides, away from the center steel wire, of the outer-layer steel wires form contact parts, and the contact parts are all of a smooth plane structure. The steel strand has the advantages that the structural stability is high, the bearing capacity can be brought into full play, the problem that traditional steel strands are poor in cooperative stress is solved, and reliable support is provided for large capital construction.

Description

Technical Field

[0001] This invention relates to the field of steel strand technology, and more specifically, to a high-performance steel strand structure. Background Technology

[0002] In various large-scale infrastructure construction projects, such as bridge construction, high-rise building construction, and large-scale water conservancy projects, steel strands bear extremely critical load-bearing tasks. Their performance directly affects the safety and quality of the project. Currently widely used traditional steel strands have significant shortcomings in performance. Traditional steel strands are usually composed of a simple combination of a central steel wire and outer steel wires. The cooperative stress-bearing performance between the steel wires is poor, weakening the overall structural stability of the steel strand and making it difficult to fully utilize its load-bearing capacity. This severely limits the higher requirements for the strength and reliability of steel strands in engineering construction. This performance defect not only increases potential project risks but may also lead to frequent maintenance and replacement work, significantly increasing the total life-cycle cost of the project. Therefore, we propose a high-performance steel strand structure. Summary of the Invention

[0003] The purpose of this invention is to provide a high-performance steel strand structure, which aims to solve the problem that the poor cooperative stress-bearing performance among the steel wires in the prior art weakens the overall stability of the steel strand structure and makes it difficult to fully exert its due load-bearing capacity.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-performance steel strand structure, comprising a central steel wire made of high carbon steel, and at least six outer steel wires made of high carbon steel surrounding the central steel wire. The outer steel wires are spirally arranged around the central steel wire, with the side of the outer steel wire closest to the central steel wire in contact with the outer wall of the central steel wire, and the side of the outer steel wire furthest from the central steel wire forming a contact portion, all of which are smooth planar structures.

[0005] Preferably, the outer wall of the central steel wire is provided with two sets of wire grooves, each set having at least two wire grooves, and the wire grooves in each set are arranged at equal intervals on the outer wall of the central steel wire.

[0006] Preferably, the cross-section of the central steel wire is a polygonal structure, and a first fitting portion is formed at the corresponding position of the outer wall of the central steel wire and its polygonal edge. The first fitting portion is a planar structure. The side of the outer steel wire that fits with the central steel wire forms a second fitting portion, which is a planar structure corresponding to the first fitting portion.

[0007] Preferably, the wire grooves are each formed at the corner between two adjacent first mating portions.

[0008] Preferably, the two sides of the second bonding portion gradually extend at an angle toward the two sides of the contact portion, and after the extension, the cross-section of the outer steel wire forms a trapezoidal structure.

[0009] Preferably, the outer steel wires are provided with anchoring patterns on the outer wall near their ends, and the anchoring patterns are provided on both sides of the contact portion.

[0010] Preferably, the wire grooves in each group are arranged in a spiral sequence, and the two groups of wire grooves are symmetrically distributed.

[0011] Preferably, an airflow channel for gas circulation is formed between the outer wall of the corner formed between two adjacent first bonding portions and the two adjacent outer steel wires.

[0012] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention sets up a central steel wire, an outer layer of steel wire, and a contact part. The outer layer of steel wire spirals around the central steel wire and fits tightly. The contact part is a smooth plane, which reduces the frictional resistance between the steel wires, making the force transmission smoother and more uniform. The overall structural stability of the steel strand is enhanced, which can give full play to the load-bearing capacity and solve the problem of poor synergistic force distribution of traditional steel strands, providing reliable support for large-scale infrastructure projects.

[0013] 2. The grooves and polygonal structure design on the outer wall of the central steel wire in this invention increase the contact area and friction between the central steel wire and the outer steel wire, while effectively dispersing the stress generated in the steel strand under stress. When the steel strand is subjected to load and bending, the grooves and polygonal structure can guide the stress to be evenly distributed, avoiding stress concentration, and greatly enhancing the structural stability of the steel strand under different working conditions, enabling it to better cope with the challenges brought by complex engineering environments.

[0014] 3. In this invention, the two sides of the second bonding part gradually extend towards the two sides of the contact part. When the cross-section of the outer steel wire forms a trapezoidal structure, this unique shape increases the contact area between the outer steel wire, the central steel wire, and adjacent outer steel wires. In actual stress application, a larger contact area can more evenly distribute stress from all directions, avoiding stress concentration and thus effectively enhancing the overall stability of the steel strand structure. Furthermore, due to the trapezoidal shape, the outer steel wires have a higher degree of fit when surrounding the central steel wire. When the steel strand is subjected to external forces such as tension, the outer steel wires can more effectively transfer the force to the central steel wire. At the same time, adjacent outer steel wires can also better cooperate with each other to jointly bear the external force, allowing the steel strand as a whole to fully exert its load-bearing capacity.

[0015] 4. In this invention, the airflow channel formed between the outer wall of the corner between two adjacent first mating parts and the two adjacent outer steel wires promotes gas circulation inside the steel strand. This helps reduce the risk of corrosion inside the steel strand due to moisture accumulation, extends the service life of the steel strand, and reduces the total life cycle cost of the project. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the central steel wire in this invention; Figure 3 This is an interface diagram of the central steel wire in this invention; Figure 4 This is a schematic diagram of the disassembly structure of the central steel wire in this invention.

[0017] Explanation of the labels in the diagram: 1. Central steel wire; 2. Outer steel wire; 3. Contact part; 4. Wire groove; 5. First bonding part; 6. Second bonding part; 7. Anchoring pattern; 8. Airflow channel. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Example 1

[0019] like Figure 1-4 As shown, a high-performance steel strand structure includes a central steel wire 1 made of high-carbon steel, and at least six outer steel wires 2 made of high-carbon steel surrounding the central steel wire 1. The outer steel wires 2 are spirally arranged around the central steel wire 1. The side of the outer steel wires 2 closest to the central steel wire 1 is in contact with the outer wall of the central steel wire 1, and the side of the outer steel wires 2 away from the central steel wire 1 forms a contact portion 3. The contact portions 3 are all smooth planar structures.

[0020] Specifically, when a load is applied to the steel strand, the first part to be affected is the outer layer of steel wire 2 away from the central steel wire 1, i.e., the contact part 3. The contact part 3 is a smooth planar structure. When the force is applied to this plane, the force distribution is relatively uniform, and stress concentration will not occur due to the unevenness of the surface. This smooth force transmission process lays a good foundation for the subsequent coordinated force bearing of the entire steel strand structure and ensures the stability of the initial force transmission stage.

[0021] Furthermore, the outer wall of the central steel wire 1 is provided with two sets of wire grooves 4, each set of wire grooves 4 having at least two, and the wire grooves 4 in each set are arranged at equal intervals on the outer wall of the central steel wire 1. Each of the wire grooves 4 is respectively opened at the corner formed between two adjacent first mating parts 5; The wire grooves 4 in each group are arranged in a spiral sequence, and the two groups of wire grooves 4 are symmetrically distributed.

[0022] Specifically, when the steel strand is subjected to stress, especially when the central wire 1 is subjected to complex stresses such as tension, compression, or bending, the groove 4 plays a crucial role in stress dispersion. When an object is deformed under stress, stress concentration tends to occur at locations with abrupt changes in geometry. The presence of the groove 4 alters the local geometry of the central wire 1. When stress is transmitted to the location of the groove 4, the groove 4 can diffuse the concentrated stress along its spiral direction and at the contact interface with the outer wire 2. For example, during the bending process of the central wire 1, the material at the groove 4 will undergo synergistic deformation due to stress dispersion, preventing a certain area from yielding or breaking first due to excessive stress concentration. This design effectively improves the reliability of the central wire 1 under complex stress conditions, thereby enhancing the overall synergistic stress performance of the steel strand and ensuring that the steel strand can work stably under various working conditions.

[0023] Furthermore, the cross-section of the central steel wire 1 is a polygonal structure, and the outer wall of the central steel wire 1 and the corresponding edge of its polygon form a first bonding part 5. The first bonding part 5 is a planar structure. The side of the outer steel wire 2 that is bonded to the central steel wire 1 forms a second bonding part 6. The second bonding part 6 is a planar structure corresponding to the first bonding part 5. The two sides of the second bonding part 6 gradually extend towards the two sides of the contact part 3, and after the extension, the cross section of the outer steel wire 2 forms a trapezoidal structure.

[0024] Specifically, when the steel strand is subjected to external force, the adjacent outer steel wires 2 can better cooperate to transfer force through the interlocking of the trapezoidal structure. For example, when subjected to tension, the trapezoidal structure allows the adjacent outer steel wires 2 to form an interlocking state, preventing relative slippage between the steel wires and enhancing the overall stability of the steel strand structure. At the same time, this structure helps to distribute the force more evenly throughout the entire steel strand structure, avoiding structural failure due to uneven local stress, thereby improving the load-bearing capacity and reliability of the steel strand.

[0025] Furthermore, anchoring patterns 7 are provided on the outer wall of the outer steel wire 2 near its end, and the anchoring patterns 7 are provided on both sides of the contact part 3.

[0026] Specifically, when the steel strand is under stress, the large frictional force generated between the anchoring pattern 7 and the anchoring component can effectively prevent the steel strand from falling off the anchoring part, ensuring the firmness of the end connection of the entire structure under stress, and thus ensuring the safety of the entire structure.

[0027] Furthermore, an airflow channel 8 for gas circulation is formed between the outer wall of the corner formed between the two adjacent first mating parts 5 and the two adjacent outer steel wires 2.

[0028] Specifically, air can circulate within the channel, carrying away the heat generated by friction in the steel strands, thus lowering their temperature and reducing the impact of high temperatures on the properties of the steel wire. Furthermore, continuous airflow prevents air stagnation, reducing the adhesion and accumulation of corrosive substances such as moisture on the surface of the steel strands, thereby reducing the risk of corrosion, extending their service life, and ensuring the performance stability of the steel strands during long-term use.

[0029] Working Principle: This embodiment provides a high-performance steel strand structure. When a load is applied to the steel strand, the first part affected is the outer layer of steel wire 2 away from the central steel wire 1, i.e., the contact part 3. The contact part 3 is a smooth planar structure. When the force acts on this plane, the force distribution is relatively uniform, and stress concentration will not occur due to unevenness of the surface. This stable force transmission process lays a good foundation for the subsequent coordinated force transmission of the entire steel strand structure, ensuring the stability of the initial force transmission stage. When the steel strand as a whole is under stress, especially when the central steel wire 1 is subjected to complex stresses such as tension, compression, or bending, the groove 4 plays a key role in stress dispersion. When an object is deformed under stress, stress concentration is likely to occur in the first few strands. The presence of the groove 4 alters the local geometry of the central steel wire 1 at locations with abrupt shape changes. When stress is transmitted to the location of the groove 4, the groove 4 can diffuse the concentrated stress along its spiral direction and the contact interface with the outer steel wire 2. For example, during the bending process of the central steel wire 1, the material at the groove 4 will undergo synergistic deformation due to the dispersion of stress, preventing a certain area from yielding or breaking first due to excessive stress concentration. This design effectively improves the reliability of the central steel wire 1 under complex stress conditions, thereby enhancing the overall synergistic stress performance of the steel strand and ensuring that the steel strand can work stably under various working conditions. This solves the problem of poor synergistic stress performance of traditional steel strands and provides reliable support for large-scale infrastructure projects.

[0030] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A high-performance steel strand structure, characterized in that, It includes a central steel wire (1) made of high carbon steel, and at least six outer steel wires (2) made of high carbon steel are surrounding the central steel wire (1). The outer steel wires (2) are spirally wrapped around the central steel wire (1). The side of the outer steel wires (2) close to the central steel wire (1) is in contact with the outer wall of the central steel wire (1). The side of the outer steel wires (2) away from the central steel wire (1) forms a contact portion (3). The contact portions (3) are all smooth planar structures.

2. The high-performance steel strand structure according to claim 1, characterized in that, The outer wall of the central steel wire (1) is provided with two sets of wire grooves (4), each set of wire grooves (4) has at least two, and the wire grooves (4) in each set are arranged at equal intervals on the outer wall of the central steel wire (1).

3. The high-performance steel strand structure according to claim 2, characterized in that, The cross-section of the central steel wire (1) is a polygonal structure. The outer wall of the central steel wire (1) and the edge of the polygon are respectively formed with a first fitting part (5). The first fitting part (5) is a planar structure. The side of the outer steel wire (2) that is in contact with the central steel wire (1) forms a second fitting part (6). The second fitting part (6) is a planar structure corresponding to the first fitting part (5).

4. The high-performance steel strand structure according to claim 3, characterized in that, The grooves (4) are each opened at the corners formed between two adjacent first mating parts (5).

5. A high-performance steel strand structure according to claim 3, characterized in that, The two sides of the second bonding part (6) gradually extend towards the two sides of the contact part (3), and after it extends, the cross section of the outer steel wire (2) forms a trapezoidal structure.

6. A high-performance steel strand structure according to claim 5, characterized in that, The outer steel wire (2) is provided with anchoring patterns (7) on the outer wall near its end, and the anchoring patterns (7) are provided on both sides of the contact part (3).

7. A high-performance steel strand structure according to claim 4, characterized in that, The wire grooves (4) in each group are arranged in a spiral sequence, and the two groups of wire grooves (4) are symmetrically distributed.

8. A high-performance steel strand structure according to claim 3, characterized in that, An airflow channel (8) for gas circulation is formed between the outer wall of the corner formed between the two adjacent first bonding parts (5) and the two adjacent outer steel wires (2).

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