Supporting rod cable made of carbon fiber composite material

Abstract

The utility model discloses a carbon fiber composite material stay cable which comprises two carbon plates and a supporting mechanism, the two carbon plates are arranged in parallel, the two ends of the two carbon plates are fixed through anchoring heads, and the carbon plates are made of carbon fiber reinforced composite materials. The supporting mechanism is of a polygonal structure formed by sequentially hinging N edges end to end, the two carbon plates are connected with the two non-adjacent edges of the supporting mechanism respectively, and an elastic element is arranged between the two edges, connected with the carbon plates, of the supporting mechanism. The supporting mechanism is of a deformable polygonal structure, an elastic element is arranged between the supporting mechanism and the connecting position of the two carbon plates, and in the using process of the stay cable, when the carbon plates bear loads, the supporting mechanism deforms, so that the stress path of the carbon plates is optimized, and the overall structural stability of the stay cable is improved; meanwhile, along with the deformation of the supporting mechanism, the elastic element generates elastic deformation to absorb energy, so that the ductility of the stay cable and the resistance to brittle failure are improved, and the structural performance of the stay cable is improved on the premise that the requirement for light weight is met.

Description

Technical Field

[0001] The utility model relates to the technical field of structural engineering, in particular to a carbon fiber composite material bracing cable. Background Art

[0002] Cable structures are a vital component in many engineering structures, providing the necessary support and stability for structures such as buildings and bridges. Traditional cables are mostly made of steel or other metal materials, which, although they have good mechanical properties, also have many limitations. Traditional materials such as steel cables add burden to the overall structure due to their heavy mass. In addition, metal materials are prone to corrosion in humid or chemical environments, which can greatly shorten their service life. Metal stay cables may also suffer fatigue damage under dynamic loads, which may cause the structural performance to deteriorate over time.

[0003] In addition, conventional cables often lack sufficient ductility when exceeding their design loads, and once the limit state is reached, brittle fracture may occur, resulting in sudden structural failure. This lack of ductility is particularly important in carbon fiber composite (CFRP) stay cables, because although CFRP materials have advantages in weight and strength ratio, they are generally not as ductile as metal materials. Therefore, how to increase the ductility and prevent brittle fracture of CFRP stay cables while maintaining their lightweight and high strength has become a technical challenge that needs to be solved urgently.

[0004] The prior art fails to provide a solution for a pole cable that is both lightweight and highly extensible, and also lacks an effective design for dealing with dynamic and overload situations. Utility Model Content

[0005] The purpose of the utility model is to provide a carbon fiber composite material strut cable to solve the problems existing in the above-mentioned prior art and enhance the ductility and resistance to brittle failure of the CFRP strut cable.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a carbon fiber composite material support rod cable, comprising:

[0008] Two carbon plates, the two carbon plates are arranged in parallel and fixed at both ends by anchoring heads, and the carbon plates are made of carbon fiber reinforced composite material;

[0009] A support mechanism, wherein the support mechanism is a polygonal structure formed by N edges hinged end to end, wherein N>3; the two carbon plates are respectively connected to two non-adjacent edges of the support mechanism, and an elastic element is arranged between the two edges of the support mechanism connected to the carbon plates, the two carbon plates are subjected to force, driving the support mechanism to deform, and the elastic element generates elastic deformation accordingly to absorb energy.

[0010] Preferably, the support mechanism is an axisymmetric structure with the deformation direction of the elastic element as the axis.

[0011] Preferably, the supporting mechanism is an axisymmetric structure with the length direction of the carbon plate as the axis.

[0012] Preferably, the support mechanism comprises a quadrilateral structure formed by four oblique rods connected end to end in sequence, the elastic element is arranged along a diagonal line of the quadrilateral structure, and the two carbon plates are respectively connected to two ends of the other diagonal line of the quadrilateral structure.

[0013] Preferably, the support mechanism further includes two first connecting members, which are symmetrically arranged with the elastic element as the axis of symmetry, the first end of the oblique rod is hinged to the first connecting member, and the carbon plate is connected to the first connecting member in a one-to-one correspondence.

[0014] Preferably, the carbon plate is slidably connected to the first connecting member;

[0015] The first connecting member has a mounting hole for allowing the carbon plate to pass through, and the carbon plate can slidably pass through the mounting hole.

[0016] Preferably, the supporting mechanism further includes two second connecting members, both ends of the elastic element are respectively connected to the second connecting members, and the second end of the oblique rod is hinged to the second connecting member.

[0017] Preferably, the elastic element is a spring, and the elastic element is detachably connected to the second connecting member; the second connecting member has a mounting groove adapted to the elastic element, and the end of the elastic element can be hooked in the mounting groove.

[0018] Preferably, the carbon fiber composite support cable further comprises two fixing buckles, which fix the two carbon plates and are located on both sides of the supporting mechanism.

[0019] Preferably, there are multiple groups of the supporting mechanisms, and all of the supporting mechanisms are arranged in sequence along the length direction of the carbon plate.

[0020] Compared with the prior art, the utility model has achieved the following technical effects: the carbon fiber composite material strut cable of the utility model includes two carbon plates and a supporting mechanism, the two carbon plates are arranged in parallel and fixed at both ends by anchoring heads, and the carbon plates are made of carbon fiber reinforced composite materials; the supporting mechanism is a polygonal structure formed by N edges hinged end to end, wherein N>3; the two carbon plates are respectively connected to two non-adjacent edges of the supporting mechanism, and an elastic element is arranged between the two edges where the supporting mechanism is connected to the carbon plates, the two carbon plates are subjected to force, driving the supporting mechanism to deform, and the elastic element generates elastic deformation accordingly to absorb energy.

[0021] The carbon fiber composite material strut cable of the utility model has a supporting mechanism arranged between two carbon plates, the supporting mechanism is a deformable polygonal structure, and an elastic element is arranged between the supporting mechanism and the connection between the two carbon plates. When the strut cable is in use, the carbon plates bear the load while the supporting mechanism deforms to optimize the force path of the carbon plates and improve the overall structural stability of the strut cable. At the same time, as the supporting mechanism deforms, the elastic element generates elastic deformation to absorb energy to improve the ductility of the strut cable and its resistance to brittle failure, thereby improving the structural performance of the strut cable while meeting the requirements of lightweight. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a structural schematic diagram of a carbon fiber composite material bracing cable disclosed in an embodiment of the utility model;

[0024] Figure 2 It is a schematic structural diagram of a support mechanism of a carbon fiber composite material support cable disclosed in an embodiment of the utility model.

[0025] In the figure: 1. carbon plate; 2. supporting mechanism; 3. anchoring head; 4. elastic element; 5. diagonal rod; 6. first connecting piece; 7. mounting hole; 8. second connecting piece; 9. mounting groove; 10. fixing buckle; 11. pin shaft. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The purpose of the utility model is to provide a carbon fiber composite material strut cable to solve the problems existing in the above-mentioned prior art and enhance the ductility and resistance to brittle failure of the CFRP strut cable.

[0028] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] The utility model provides a carbon fiber composite strut cable, comprising two carbon plates 1 and a support mechanism 2, wherein the two carbon plates 1 are arranged in parallel and fixed at both ends by anchoring heads 3, and the carbon plates 1 are made of carbon fiber reinforced composite material; the support mechanism 2 is a polygonal structure formed by N edges hinged end to end in sequence, wherein N>3; the two carbon plates 1 are respectively connected to two non-adjacent edges of the support mechanism 2, and an elastic element 4 is arranged between the two edges where the support mechanism 2 is connected to the carbon plates 1, and the two carbon plates 1 are subjected to force, driving the support mechanism 2 to deform, and the elastic element 4 generates elastic deformation accordingly to absorb energy.

[0030] The carbon fiber composite material strut cable of the utility model is provided with a supporting mechanism 2 between two carbon plates 1, the supporting mechanism 2 is a deformable polygonal structure, and an elastic element 4 is provided between the supporting mechanism 2 and the connection between the two carbon plates 1. When the strut cable is in use, the carbon plates 1 bear the load while the supporting mechanism 2 is deformed to optimize the force path of the carbon plates 1 and improve the overall structural stability of the strut cable. At the same time, as the supporting mechanism 2 is deformed, the elastic element 4 generates elastic deformation to absorb energy to improve the ductility of the strut cable and the resistance to brittle failure, thereby improving the structural performance of the strut cable while meeting the requirements of lightweight.

[0031] In order to improve the force uniformity of the support mechanism 2, thereby further improving the structural stability of the brace cable, in practical applications, the support mechanism 2 can be set as an axisymmetric structure, for example, the deformation direction of the elastic element 4 is used as the axis, and the support mechanism 2 is set as an axisymmetric structure. In other specific embodiments of the utility model, the length direction of the carbon plate 1 can also be used as the axis to set the support mechanism 2 as an axisymmetric structure. In practical applications, the support mechanism 2 can also be set as a regular polygonal structure, which can improve the force uniformity of the support mechanism 2 while reducing the difficulty of assembling the brace cable, and further ensure the structural stability of the brace cable.

[0032] In this specific embodiment, the support mechanism 2 includes a quadrilateral structure formed by four oblique rods 5 connected end to end, the elastic element 4 is arranged along a diagonal line of the quadrilateral structure, and the two carbon plates 1 are respectively connected to the two ends of the other diagonal line of the quadrilateral structure. During the operation of the brace cable, the carbon plate 1 is stressed, the quadrilateral structure deforms under the load, and the angle between the support mechanism 2 and the horizontal direction is changed to optimize the force path. The elastic element 4 deforms with the support mechanism 2, thereby providing the necessary ductility and energy absorption capacity for the brace cable, and effectively improving the overall structural stability of the brace cable.

[0033] Specifically, the support mechanism 2 also includes two first connecting members 6, which are symmetrically arranged with the elastic element as the symmetry axis. The first end of the inclined rod 5 is hinged to the first connecting member 6, and the carbon plate 1 is connected to the first connecting member 6 and the two correspond one to one. The support mechanism 2 is provided with the first connecting member 6, which facilitates the hinge of the inclined rod 5 and provides convenience for the connection between the carbon plate 1 and the support mechanism 2.

[0034] It should be emphasized that the carbon plate 1 is slidably connected to the first connecting member 6. The carbon plate 1 is slidably connected to the first connecting member 6, so that the supporting mechanism 2 can adaptively adjust the angle between it and the carbon plate 1 while being deformed under load, so as to better bear the load and improve the structural strength of the support cable.

[0035] The first connecting member 6 has a mounting hole 7 for allowing the carbon plate 1 to pass through, and the carbon plate 1 can slide through the mounting hole 7, while ensuring that the supporting mechanism 2 is slidably connected to the carbon plate 1, and the connection firmness between the supporting mechanism 2 and the carbon plate 1 is enhanced without damaging the structure of the carbon plate 1. In other achievable specific embodiments of the utility model, a cambered transition surface is provided at the opening of the mounting hole 7 to avoid damage to the carbon plate 1 and extend the service life of the brace cable.

[0036] More specifically, the support mechanism 2 also includes two second connecting members 8, the two ends of the elastic element 4 are respectively connected to the second connecting members 8, the second end of the inclined rod 5 is hinged to the second connecting member 8, and the second end of the inclined rod 5 is hinged using the second connecting member 8, so that the support mechanism 2 can be surrounded by a deformable polygonal structure, while facilitating the installation and fixation of the elastic element 4.

[0037] In this specific embodiment, the elastic element 4 is a spring, which is cheap and easy to obtain. The elastic element 4 is detachably connected to the second connecting member 8, which facilitates the disassembly and replacement of the elastic element 4. In practical applications, the specifications of the elastic element 4 can be adjusted according to the use environment of the support cable to adapt to different working conditions and improve the flexibility and adaptability of the support cable. The second connecting member 8 has an installation groove 9 adapted to the elastic element 4, and the end of the elastic element 4 can be hooked in the installation groove 9, which is convenient for disassembly and assembly.

[0038] It should be noted that the inclined rod 5 can be hinged with the first connecting member 6 and the second connecting member 8 by means of the pin 11 to ensure smooth relative rotation, thereby ensuring the deformation capacity of the support mechanism 2. The support mechanism 2 can be made of steel to ensure the structural strength and bearing capacity of the support mechanism 2.

[0039] The carbon fiber composite support cable of the utility model also includes two fixing buckles 10, which fix the two carbon plates 1 and are located on both sides of the support mechanism 2 to limit the support mechanism 2, thereby ensuring that the support mechanism 2 can smoothly play an energy absorption role and improve the structural stability and working reliability of the support cable.

[0040] Furthermore, the number of support mechanisms 2 can be set to multiple groups, and all support mechanisms 2 are sequentially arranged along the length direction of the carbon plate 1, which is equivalent to multiple groups of support mechanisms 2 connected in series to further improve the ductility of the brace cable. Multiple groups of support mechanisms 2 with different structures can also be set according to different energy absorption requirements to further improve the structural stability of the brace cable. When multiple groups of support mechanisms 2 are set, fixed buckles 10 can be set between adjacent support mechanisms 2 to limit the support mechanisms 2 to a certain area of ​​the carbon plate 1 to ensure that the support mechanisms 2 can function.

[0041] The carbon fiber composite strut cable of the utility model has a support mechanism 2 disposed between two carbon plates 1. When a load exceeds the normal working range of the carbon plate 1, the support mechanism 2 is appropriately deformed, thereby absorbing the extra force and preventing the strut cable from suddenly breaking due to overload. By integrating the support mechanism 2 into the strut cable structure, the safety and reliability of the strut cable when subjected to extreme environments and loads are significantly improved, the service life of the structure is extended, and maintenance costs are reduced. In addition, the support mechanism 2 is detachably connected to the carbon plate 1 using the first connecting member 6, allowing for rapid on-site installation and adjustment, providing an economical and effective way to enhance the performance of various engineering structures, with a wide range of adaptability.

[0042] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A carbon fiber composite material strut cable, characterized in that: include: Two carbon plates, the two carbon plates are arranged in parallel and fixed at both ends by anchoring heads, and the carbon plates are made of carbon fiber reinforced composite material; A support mechanism, wherein the support mechanism is a polygonal structure formed by N edges hinged end to end, wherein N>3; the two carbon plates are respectively connected to two non-adjacent edges of the support mechanism, and an elastic element is arranged between the two edges of the support mechanism connected to the carbon plates, the two carbon plates are subjected to force, driving the support mechanism to deform, and the elastic element generates elastic deformation accordingly to absorb energy.

2. The carbon fiber composite strut cable according to claim 1, characterized in that: With the deformation direction of the elastic element as the axis, the support mechanism is an axisymmetric structure.

3. The carbon fiber composite strut cable according to claim 1, characterized in that: With the length direction of the carbon plate as the axis, the support mechanism is an axisymmetric structure.

4. The carbon fiber composite strut cable according to claim 1, characterized in that: The support mechanism comprises a quadrilateral structure formed by four oblique rods connected end to end in sequence, the elastic element is arranged along a diagonal line of the quadrilateral structure, and the two carbon plates are respectively connected to two ends of another diagonal line of the quadrilateral structure.

5. The carbon fiber composite strut cable according to claim 4, characterized in that: The support mechanism also includes two first connecting members, which are symmetrically arranged with the elastic element as a symmetry axis, the first end of the inclined rod is hinged to the first connecting member, and the carbon plate is connected to the first connecting member in a one-to-one correspondence.

6. The carbon fiber composite strut cable according to claim 5, characterized in that: The carbon plate is slidably connected to the first connecting member; The first connecting member has a mounting hole for allowing the carbon plate to pass through, and the carbon plate can slidably pass through the mounting hole.

7. The carbon fiber composite strut cable according to claim 5, characterized in that: The supporting mechanism further comprises two second connecting members, both ends of the elastic element are respectively connected to the second connecting members, and the second end of the oblique rod is hinged to the second connecting member.

8. The carbon fiber composite strut cable according to claim 7, characterized in that: The elastic element is a spring, and the elastic element is detachably connected to the second connecting member; the second connecting member has a mounting groove adapted to the elastic element, and the end of the elastic element can be hooked in the mounting groove.

9. The carbon fiber composite strut cable according to claim 1, characterized in that: It also includes two fixing buckles, which fix the two carbon plates and are located on both sides of the supporting mechanism.

10. The carbon fiber composite strut cable according to any one of claims 1 to 9, characterized in that: The number of the supporting mechanisms is multiple groups, and all of the supporting mechanisms are arranged in sequence along the length direction of the carbon plate.

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