Square-section carbon fiber parallel rod cable and cable body and anchorage device type selection method thereof

Abstract

The invention relates to the technical field of civil engineering, and discloses a square-section carbon fiber parallel rod cable and a cable body and anchorage device type selection method thereof.The square-section carbon fiber parallel rod cable comprises a cable body section, a transition section and an anchorage section, and a plurality of carbon fiber ribs are closely arranged in the transverse direction to form the square or approximately square-section cable body section with the transverse bearing capacity; the arrangement of the carbon fiber ribs is gradually transited from a square to a standard hexagon or unfilled-corner hexagon section, and compatible connection with a standard anchorage device is achieved. The model selection method comprises the following steps: determining the cable body section specifications of the cable body section and the transition section through a graphic method according to the required section size and bearing capacity requirements on the basis of tight arrangement of the carbon fiber ribs, and determining the specification of a matched anchorage device. The carbon fiber parallel rod cable with the square cross section provides a larger contact stress area when bearing a plane transverse force; according to the cable body and anchorage device type selection method, a method for rapidly determining the specifications of a cable body and an anchorage device is provided, and compatibility with a standard anchorage device is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of civil engineering, in particular to a square-section carbon fiber parallel rod cable and a cable body and an anchor selection method thereof. Background Art

[0002] With the development of civil engineering technology, carbon fiber composites (CFRPs) have garnered widespread attention as a new type of engineering material, particularly in applications involving large-span, lightweight, and highly durable structures. CFRPs, due to their lightweight, high-strength, corrosion-resistant, and fatigue-resistant properties, are an ideal alternative to traditional steel cables. They are particularly well-suited for specialized engineering scenarios, such as large-span spatial structures and cable-stayed curtain walls. CFRP parallel-rod cables utilize multiple carbon fiber ribs arranged in parallel and integrally formed, fully utilizing the material's axial tensile strength and possessing broad application prospects.

[0003] The cross-section of existing carbon fiber parallel rods is usually designed in a regular hexagon or a missing-corner hexagon, and there are standard cross-sectional forms and supporting anchoring solutions. However, the hexagonal structure of the existing hexagonal carbon fiber parallel rods has a small contact force surface when directly bearing lateral loads, resulting in insufficient lateral bearing capacity, making it difficult to effectively meet the use requirements of special structures such as cable curtain walls. Although carbon fiber plate cables can provide square cross-sections, the plate-like design causes uneven force, and the overall strength is lower than that of carbon fiber parallel rod cables. In addition, the existing carbon fiber plate cable anchoring technology makes the anchor size larger, making it difficult to use in occasions with limited space. Therefore, the present invention provides a square cross-section carbon fiber parallel rod cable and a method for selecting a cable body and anchor to address the shortcomings of the prior art. Summary of the Invention

[0004] In response to the shortcomings of the existing technology, the present invention provides a square-section carbon fiber parallel rod cable, which solves the problem that the hexagonal structure of the existing hexagonal carbon fiber parallel rod cable has a small contact force surface under lateral load and insufficient lateral bearing capacity, and makes up for the shortcomings of the rectangular carbon fiber plate cable with low bearing capacity and large anchor size, so as to effectively meet the use requirements of special structures such as cable curtain walls.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a square cross-section carbon fiber parallel rod cable, comprising:

[0006] The cable body section includes a cable body having a square or approximately square cross-section, wherein the cable body is composed of a plurality of carbon fiber ribs with circular cross-sections closely arranged along the direction of the transverse force;

[0007] A transition section, connected to one end of the cable body section, converts the square cross-section of the cable body section into a hexagonal or corner-less hexagonal cross-section suitable for a standard anchor;

[0008] An anchoring section connected to one end of the transition section, wherein the anchoring section is connected to the anchor body via carbon fiber ribs;

[0009] The stressed carbon fiber reinforcement is continuous in the cable body section, transition section and anchor section, while the structural carbon fiber reinforcement is continuous only in the transition section and anchor section.

[0010] Preferably, a cable body protection material and a square sheath body are provided on the periphery of the cross section of the cable body segment. The cable body protection material is ECC high ductility concrete or HDPE material, which is filled between the sheath body and the cable body. The sheath body is made of stainless steel.

[0011] Preferably, the transition section includes an extension tube, carbon fiber ribs and fillers, and the carbon fiber ribs include structural carbon fiber ribs and stressed carbon fiber ribs. The structural carbon fiber ribs are arranged in the gap between the periphery of the stressed carbon fiber ribs and the extension tube to fill the cross section and improve the symmetry of the anchoring section.

[0012] Preferably, the extension tube is arranged outside the transition section, for accommodating the stressed carbon fiber ribs, structural carbon fiber ribs and fillers, and is fitted with the sheath body.

[0013] Preferably, the carbon fiber reinforcements of the cable body segment are arranged in layers in the cross section, the arrangement direction of the carbon fiber reinforcements is consistent with the expected lateral force direction, and the arrangement of the structural carbon fiber reinforcements makes the transition section cross section form a standard hexagon or a missing-corner hexagon, which is used to adapt to standard anchor specifications.

[0014] A method for selecting a square-section carbon fiber parallel rod cable, a cable body, and an anchor is also provided, including the following steps:

[0015] 1) Set the target size and required bearing capacity of the square section, assuming the maximum cross-sectional size is a × b;

[0016] 2) Select the diameter d of a single carbon fiber reinforcement and arrange them closely to form a standard hexagonal cross-section;

[0017] 3) With the center of the central circle as the center point, draw a×b square outline, where the a×b square outline is outline one. The carbon fiber reinforcement set composed of the circle completely contained in outline one constitutes the square cable body section to be determined, where the square cable body section is section one, and the corresponding square outline a0×b0 (a0≤a, b0≤b) is outline two. The corresponding carbon fiber reinforcement is the stressed carbon fiber reinforcement, and the number is N. cf1 ;

[0018] 4) Determine whether the bearing capacity meets the requirements. If not, adjust the reinforcement diameter or arrangement:

[0019] 4.1) When a0 and b0 are significantly smaller than a and b, increase the diameter d of the single reinforcement section to Thereby increasing the effective cross-sectional area of ​​the carbon fiber reinforcement bearing the cross-section;

[0020] 4.2) Reduce the diameter d and increase the effective cross-sectional area of ​​the carbon fiber reinforcement by reducing the cross-sectional void ratio;

[0021] 5) Based on the obtained cross section that meets the size and bearing capacity requirements, draw the circumscribed circle contour as contour three based on cross section one;

[0022] 6) The carbon fiber reinforcement completely covered by the profile 3 is configured as the transition section section, and the transition section section is the section 2, and the specifications and models of the anchor body are determined;

[0023] 7) Output the carbon fiber parallel rod cable cross section and supporting anchor specifications that meet the requirements.

[0024] Preferably, the stressed carbon fiber reinforcements are arranged to form section one, which is the maximum cable body section and is used to form a basic structure of a square section. The stressed carbon fiber reinforcements are arranged together to form section two, which is the minimum square section including the cable body carbon fiber reinforcements. Section two is supplemented by fillers.

[0025] Preferably, a virtual cross-section is formed after the extension tube in the transition section is filled with material. The virtual cross-section is the minimum circular cross-section that includes the carbon fiber reinforcement of the cable body, which is used to ensure the standardization of the cable body in the anchoring section, so that standard anchors are used for anchoring. The virtual cross-section determines the cross-section of the carbon fiber reinforcement cable body in the transition section and the anchoring end during the selection process.

[0026] The present invention provides a square-section carbon fiber parallel rod cable and a cable body and anchor selection method thereof. It has the following beneficial effects:

[0027] 1. The present invention adopts square-section carbon fiber parallel rod cables and their selection method to achieve the technical effect of improving lateral load-bearing performance; compared with the existing hexagonal carbon fiber parallel rod cables, this solution provides a larger contact force area when bearing planar lateral forces, thereby effectively improving the lateral force bearing capacity.

[0028] 2. The present invention uses a transition section design to make the square-section carbon fiber parallel rod cable compatible with the anchor of the existing standard carbon fiber parallel rod cable, achieving the technical effect of smooth connection between the anchor and the square-section cable body; compared with the carbon fiber plate cable in the existing technology, it avoids the problems of insufficient strength caused by the plate-like cross-section and the large size of the anchor.

[0029] 3. The present invention provides a method for selecting the cable cross-section and anchor, which can quickly determine the square-section carbon fiber parallel rod cable and its supporting anchor that meet different engineering requirements, thereby achieving the technical effect of simplifying the design process and shortening the engineering cycle. Compared with traditional technologies, the present invention greatly improves the design efficiency and reduces the design complexity by optimizing the selection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the carbon fiber parallel rod cable of the present invention;

[0031] Figure 2 is a schematic cross-sectional view of a cable body section of the present invention;

[0032] Figure 3 It is a schematic cross-sectional view of the transition section of the present invention;

[0033] Figure 4 is a schematic cross-sectional view of the anchoring section of the present invention;

[0034] Figure 5 This is a schematic diagram of a method for selecting a cross-section diagram of a cable body according to the present invention;

[0035] Figure 6 Flow chart of the method of the present invention.

[0036] Among them, 1. Cable body section; 101. Sheath body; 102. Cable body; 103. Cable body protective material; 2. Transition section; 201. Extension tube; 202. Load-bearing carbon fiber reinforcement; 203. Structural carbon fiber reinforcement; 204. Filler; 3. Anchoring section; 301. Anchor body; 4. Contour one; 5. Contour two; 6. Contour three. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example 1:

[0039] Please see the attached Figure 1 - Attachment Figure 4, a square-section carbon fiber parallel rod cable and its cable body, comprising: a cable body segment 1, the cable body segment 1 is used to provide the main tensile bearing capacity, including a cable body 102, having a square or approximately square cross-section, the cable body 102 is composed of a plurality of circular cross-section carbon fiber bars tightly arranged along the direction of the transverse force; a transition section 2, connected to one end of the cable body segment 1, the transition section 2 is used to gradually transform the square cross-section of the cable body segment 1 into a standard hexagonal or missing-corner hexagonal cross-section, so that the arrangement of the carbon fiber bars tends to be symmetrical; an anchoring section 3, connected to one end of the transition section 2, the anchoring section 3 is used to reliably anchor the cable The anchoring section 3 is connected to the anchor body 301 via carbon fiber ribs. The carbon fiber ribs are the primary load-bearing components. The anchor body 301 and the ribs are connected by a conical divergent structure, which allows the ribs to diverge one by one. This structure, anchored through friction and wrapping, improves the strength and reliability of the anchoring section 3. The carbon fiber ribs are continuous throughout the cable section 1, transition section 2, and anchoring section 3, ensuring the continuity of the cable body 102 and preventing strength loss or degradation of mechanical properties due to truncation. The cross-sectional configuration of the anchoring section 3 matches that of existing standard carbon fiber parallel rod cable anchors. The anchoring section 3 includes the anchor body 301, which seals and stabilizes the rib ends.

[0040] The outer cross-section of the cable segment 1 is surrounded by a sheath 101 and a cable protection material 103, protecting the carbon fiber reinforcement from environmental corrosion and damage. The cable protection material 103, inserted between the sheath 101 and the cable body 102, distributes and transfers external loads to the cable body 102, preventing relative movement and damage caused by external forces. The sheath 101 is made of stainless steel, offering excellent corrosion resistance, mechanical strength, and a visually appealing appearance. The cable protection material 103 is made of ECC high-ductility concrete or HDPE, offering excellent deformation resistance. The ECC high-ductility concrete also provides fire protection for the cable segment 1. The carbon fiber reinforcements of the cable segment 1 are arranged in layers in the cross section, so that the carbon fiber reinforcements can perform optimally under different stress conditions. The arrangement direction of the carbon fiber reinforcements is consistent with the expected lateral stress direction, so as to ensure that when bearing lateral loads, the carbon fiber reinforcements can maximize the bearing capacity and reduce deformation. The arrangement of the carbon fiber reinforcements 203 is constructed so that the cross section of the transition section 2 forms a standard hexagon or a missing-corner hexagon, which is used to adapt to the specifications of standard anchors. The design of the transition section 2 ensures the compatibility of the square cross section with existing standard anchors, thereby simplifying the design and installation process.

[0041] Transition section 2 includes an extension tube 201, carbon fiber ribs, and filler 204. Filler 204 is used to fill the gaps between the carbon fiber ribs and ensure the continuity and stability of their structure. The carbon fiber ribs include structural carbon fiber ribs 203 and load-bearing carbon fiber ribs 202. The load-bearing carbon fiber ribs 202 are used to bear the main transverse and longitudinal loads, and the structural carbon fiber ribs 203 are used to improve the cross-sectional shape of transition section 2. The structural carbon fiber ribs 203 are arranged in the gaps between the load-bearing carbon fiber ribs 202 and the extension tube 201 to fill the cross-sectional shape and improve symmetry. The extension tube 201 is arranged outside transition section 2 to accommodate the load-bearing carbon fiber ribs 202, structural carbon fiber ribs 203, and filler 204. It is also fitted to the sheath body 101. The extension tube 201 and the sheath body 101 cooperate with each other to form a closed and stable load-bearing system. The load-bearing carbon fiber ribs 202 and structural ribs 203 are arranged in a conical divergent pattern within the anchor body 301 of the anchor section 3. The stressed carbon fiber reinforcements 202 are arranged to form section one, which is the stressed section of the cable segment 1. The stressed carbon fiber reinforcements 202 are supplemented by the structural carbon fiber reinforcements 203 to form section two, which is the minimum hexagonal or corner-missing hexagonal section to ensure the standardization of the cable segment 3, so that standard anchors can be used for anchoring.

[0042] Example 2:

[0043] Please see the attached Figure 5 - Attachment Figure 6 This embodiment provides a method for selecting a square-section carbon fiber parallel rod cable anchor. This method includes three key profiles: Profile 1 (4) represents the maximum cable cross-section, forming the basic structure for the square cross-section and providing the initial geometric framework for its formation. Profile 2 (5) represents the minimum square cross-section encompassing the cable's load-bearing carbon fiber reinforcement 202 and represents the final cross-sectional size achieved during the standardized transition process. Profile 3 (6) represents the minimum circular cross-section encompassing the cable's load-bearing carbon fiber reinforcement 202 and the structural carbon fiber reinforcement 203. This cross-section determines the carbon fiber reinforcement cable cross-sections for the transition section 2 and anchor section 3 during the selection process.

[0044] The selection method comprises the following steps:

[0045] S1. Set parameters: Set the target size and required bearing capacity of the square section, and set the maximum section size to a×b;

[0046] S2. Select a single diameter d of carbon fiber reinforcement and arrange them closely to form a standard hexagonal cross-section;

[0047] S3. Preliminary selection of cable cross section: With the center of the central circle as the center point, draw an a×b square outline, where the a×b square outline is outline 14. The carbon fiber reinforcement set composed of circles completely contained in outline 14 constitutes the square cable cross section to be determined, where the square cable cross section is section 1, and the corresponding square outline a0×b0 (a0≤a, b0≤b) is outline 25. The corresponding carbon fiber reinforcement is the load-bearing carbon fiber reinforcement 202, and the number is N. cf1 ;

[0048] S4. Bearing capacity verification: Determine whether the bearing capacity meets the requirements. If not, adjust the reinforcement diameter or arrangement;

[0049] S4.1. When a0 and b0 are significantly smaller than a and b, increase the diameter d of the single reinforcement section to Thereby increasing the effective cross-sectional area of ​​the cross-sectional stress-bearing carbon fiber reinforcement 202;

[0050] S4.2. Reduce the diameter d to increase the effective cross-sectional area of ​​the load-bearing carbon fiber reinforcement 202 by reducing the cross-sectional void ratio.

[0051] S5. Design of transition section 2: Based on the obtained cross section that meets the size and bearing capacity requirements, draw the circumscribed circle contour as contour three 6 based on cross section one;

[0052] S6. Anchor selection: The carbon fiber reinforcement completely covered by the outline 3 6 is configured as the transition section 2 section, and the transition section 2 section is the section 2, and the specifications and models of the anchor body 301 are determined;

[0053] S7. Output specification model: Output the carbon fiber parallel rod cable cross section and supporting anchor specifications that meet the requirements.

[0054] In this embodiment, the steps of designing a square-section carbon fiber parallel rod cable that meets the bearing capacity requirement of not less than 4500 kN are as follows:

[0055] Set the target dimensions and required load-bearing capacity of the square section:

[0056] First, the target size of the square section is set to 55×55 mm and the target bearing capacity is set to 4500 kN.

[0057] Select a single diameter of carbon fiber reinforcement and arrange it in a circular pattern to form a standard hexagonal cross-section:

[0058] The diameter of the carbon fiber reinforcement is 7mm and arranged in a circular pattern to form a standard hexagonal cross-section. The hexagonal design allows for better load distribution when subjected to stress.

[0059] Superimpose a square profile on the standard section, determine the number of reinforcements included, and calculate the actual section size and load-bearing capacity:

[0060] A square profile was superimposed on the standard hexagon, ensuring that it completely contained all the carbon fiber ribs in the hexagon. Calculations revealed the actual cross-sectional dimensions to be 49 x 43.37 mm, ensuring the design requirements for a square cross-section were met.

[0061] Determine whether the bearing capacity meets the requirements. If not, adjust the reinforcement diameter or arrangement:

[0062] Based on the actual cross-sectional dimensions and material strength, the cross-sectional bearing capacity is calculated to be 4849 kN, which meets the 4500 kN requirement and complies with the target bearing capacity. Therefore, there is no need to adjust the reinforcement diameter or arrangement.

[0063] Based on the obtained cross section, draw the outline of the circumscribed circle with its center as the center:

[0064] Next, draw the outline of a circumscribed circle with the center of the square section as the center. The diameter of the circumscribed circle is 55mm, which completely contains all the carbon fiber reinforcements in the square section.

[0065] The carbon fiber reinforcement covered by the circumscribed circle is configured as the cross section of the transition section 2, and the specifications and models of the anchor body 301 are determined:

[0066] Based on the circumscribed circle, the carbon fiber reinforcement covered by the circumscribed circle is configured as the cross section of the transition section 2. The cross section of the transition section 2 is determined to be a standard hexagon or a missing-corner hexagon through calculation. Then, based on the cross section of the transition section 2, the specification model of the anchor body 301 is determined to be φ7-55.

[0067] Output the carbon fiber parallel rod cable cross section and supporting anchor specifications that meet the requirements:

[0068] Finally, the cross-sectional specification of the square-section carbon fiber parallel rod cable that meets the design requirements is φ7-45, the bearing capacity meets 4500kN, and the matching anchor specification is φ7-55.

[0069] Working Principle: When subjected to stress, the main tensile load-bearing function of the square-section carbon fiber parallel rod cable is first provided by the cable body segment 1. The cable body segment 1 is composed of multiple carbon fiber ribs tightly arranged in the horizontal direction. The multi-layer arrangement in the transverse direction forms a square or nearly square cross-section, which enables it to have higher transverse load-bearing performance when subjected to unidirectional transverse forces. The stainless steel sheath and ECC high-ductility concrete or HDPE material coating provide protection and prevent UV aging and mechanical damage.

[0070] When the cable body is under tension, the carbon fiber reinforcement of this section is uniformly stressed and deformed in a coordinated manner. While ensuring high axial strength, its square cross-section gives the cable good bending stiffness to resist lateral loads in the plane. As the force is transmitted to the transition section 2, the original square-arranged carbon fiber reinforcement gradually transitions to an approximately standard hexagonal or missing-corner hexagonal cross-section, wherein the stressed carbon fiber reinforcement 202 extends along the axial direction and continuously transmits force, while the structural carbon fiber reinforcement 203 fills the outer edge of the structure, so that the overall cross-section is symmetrically distributed to ensure uniform stress in the anchoring stage. The filling material inside this area is used to fix the position of the reinforcement bundle and maintain the stability of the overall cross-sectional shape to avoid deformation or slippage of the anchoring end. When the force continues to be transmitted to the anchoring section 3, all carbon fiber reinforcements continue to maintain a continuous state and gradually diverge outward to form a conical structure. By gradually contacting and pressing with the inner wall of the cold-cast anchor, a progressive friction anchoring mechanism is formed, wherein the stressed carbon fiber reinforcement 202 directly transmits axial tension, and the structural carbon fiber reinforcement 203 plays an auxiliary role in providing symmetrical stability and buffering transition.

[0071] The anchoring material filled in the anchor forms a whole with the carbon fiber reinforcement and the anchor after hardening, avoiding slippage or unanchoring of the cable when it is in operation. At the same time, the mature structure of the existing standard carbon fiber parallel rod cable anchor is utilized to achieve compatibility with the new cross-section cable body, ensuring its good adaptability and reliability in engineering applications.

[0072] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. Square cross-section carbon fiber parallel rod cable, characterized in that: include: The cable body section includes a cable body having a square or approximately square cross-section, wherein the cable body is composed of a plurality of carbon fiber ribs with circular cross-sections closely arranged along the direction of the transverse force; A transition section, connected to one end of the cable body section, converts the square cross-section of the cable body section into a hexagonal or corner-less hexagonal cross-section suitable for a standard anchor; An anchoring section connected to one end of the transition section, wherein the anchoring section is connected to the anchor body via carbon fiber ribs; The stressed carbon fiber reinforcement is continuous in the cable body section, transition section and anchor section, while the structural carbon fiber reinforcement is continuous only in the transition section and anchor section.

2. The square cross-section carbon fiber parallel rod cable according to claim 1, characterized in that: The cross-section of the cable segment is surrounded by a cable protection material and a square sheath body. The cable protection material is ECC high-ductility concrete or HDPE material and is filled between the sheath body and the cable body. The sheath body is made of stainless steel.

3. The square cross-section carbon fiber parallel rod cable according to claim 1, characterized in that: The transition section includes an extension tube, carbon fiber ribs and fillers. The carbon fiber ribs include structural carbon fiber ribs and stressed carbon fiber ribs. The structural carbon fiber ribs are arranged in the gap between the outer periphery of the stressed carbon fiber ribs and the extension tube to fill the cross section and improve the symmetry of the anchoring section.

4. The square cross-section carbon fiber parallel rod cable according to claim 3, characterized in that: The extension tube is arranged outside the transition section, is used to accommodate the stressed carbon fiber ribs, structural carbon fiber ribs and fillers, and is fitted with the sheath body.

5. The square cross-section carbon fiber parallel rod cable according to claim 4, characterized in that: The carbon fiber reinforcements of the cable body section are arranged in layers in the cross section, and the arrangement direction of the carbon fiber reinforcements is consistent with the expected lateral force direction. The arrangement of the structural carbon fiber reinforcements makes the cross section of the transition section form a standard hexagon or a missing-corner hexagon, which is used to adapt to standard anchor specifications.

6. A square-section carbon fiber parallel rod cable and a cable body and anchor selection method thereof, applied to the square-section carbon fiber parallel rod cable according to any one of claims 1 to 5, characterized in that: The following steps are involved: 1) Set the target size and required bearing capacity of the square section, assuming the maximum cross-sectional size is a × b; 2) Select the diameter d of a single carbon fiber reinforcement and arrange them closely to form a standard hexagonal cross-section; 3) With the center of the central circle as the center point, draw a×b square outline, where the a×b square outline is outline one. The carbon fiber reinforcement set composed of the circle completely contained in outline one constitutes the square cable body section to be determined, where the square cable body section is section one, and the corresponding square outline a0×b0 (a0≤a, b0≤b) is outline two. The corresponding carbon fiber reinforcement is the stressed carbon fiber reinforcement, and the number is N. cf1 ; 4) Determine whether the bearing capacity meets the requirements. If not, adjust the reinforcement diameter or arrangement: 4.1) When a0 and b0 are significantly smaller than a and b, increase the diameter d of the single reinforcement section to Thereby increasing the effective cross-sectional area of ​​the carbon fiber reinforcement bearing the cross-section; 4.2) Reduce the diameter d and increase the effective cross-sectional area of ​​the carbon fiber reinforcement by reducing the cross-sectional void ratio; 5) Based on the obtained cross section that meets the size and bearing capacity requirements, draw the circumscribed circle contour as contour three based on cross section one; 6) The carbon fiber reinforcement completely covered by the profile 3 is configured as the transition section section, and the transition section section is the section 2, and the specifications and models of the anchor body are determined; 7) Output the carbon fiber parallel rod cable cross section and supporting anchor specifications that meet the requirements.

7. The square cross-section carbon fiber parallel rod cable and its cable body and anchor selection method according to claim 7, characterized in that: The stressed carbon fiber reinforcements are arranged to form section one, which is the maximum cable section and is used to form a basic structure of a square section. The stressed carbon fiber reinforcements and the structural carbon fiber reinforcements are arranged together to form section two, which is supplemented by fillers.

8. The square cross-section carbon fiber parallel rod cable and its cable body and anchor selection method according to claim 7, characterized in that: The outline three is the minimum circular outer outline covering section one and section two, and is used to further determine the construction of carbon fiber reinforcement based on the established section one, thereby determining the cross-section of the carbon fiber reinforcement cable body at the transition section and the anchoring end, ensuring the standardization of the anchoring section cable body, and thus using standard anchors for anchoring.

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