CN115680195A - Composite material inhaul cable anchoring method and composite material inhaul cable - Google Patents
Composite material inhaul cable anchoring method and composite material inhaul cable Download PDFInfo
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- CN115680195A CN115680195A CN202211391431.6A CN202211391431A CN115680195A CN 115680195 A CN115680195 A CN 115680195A CN 202211391431 A CN202211391431 A CN 202211391431A CN 115680195 A CN115680195 A CN 115680195A
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- 238000004873 anchoring Methods 0.000 title claims abstract description 50
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- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims description 80
- 238000004804 winding Methods 0.000 claims description 15
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- KAATUXNTWXVJKI-UHFFFAOYSA-N cypermethrin Chemical compound CC1(C)C(C=C(Cl)Cl)C1C(=O)OC(C#N)C1=CC=CC(OC=2C=CC=CC=2)=C1 KAATUXNTWXVJKI-UHFFFAOYSA-N 0.000 claims 4
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- 230000009471 action Effects 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
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- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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Abstract
The invention discloses a composite material inhaul cable anchoring method and a composite material inhaul cable, wherein the method comprises the following steps: symmetrically fixing the two fixing pieces; the two ends of the composite material cable body are respectively divided into i strands, each stranded cable body is respectively wound on the fixing piece on the same side by k circles, the number of strands on the upper side and the lower side of the fixing piece is the same, so that the torque of the fixing piece is mutually offset after the upper stranded cable body and the lower stranded cable body are wound on the fixing piece, the stranded cable bodies are wound from the middle to the two sides by the fixing piece, the number of strands on the two sides is the same, and the stress of the fixing piece in the axial direction vertical to the stranded cable bodies is mutually balanced; bonding the fixing piece and the stranded cable body by using an adhesive, and bonding the tail end of the stranded cable body and the cable body main body by using the adhesive; heating and curing the composite material cable body; and installing a clamp at the bonding part of the tail end of the stranded cable body and the cable body main body. The invention effectively improves the anchoring efficiency of the composite material inhaul cable, has the characteristics of simple structure, easy industrial processing and the like, and has wide application prospect in the field of civil engineering.
Description
Technical Field
The invention relates to a composite material inhaul cable anchoring method and a composite material inhaul cable, and belongs to the technical field of composite material inhaul cable anchoring structures.
Background
The composite material inhaul cable has the advantages of light weight, high strength, high corrosion resistance, good fatigue performance and the like, can overcome the defects of great weight, easy corrosion and the like of the traditional steel inhaul cable, has excellent tensile property, and has wide application prospect in the field of civil engineering.
Most of the existing composite inhaul cables adopt an anchoring connection technology of a clamping piece type anchoring system, a bonding type anchoring system and a composite clamp, but the composite material is an anisotropic material, the mechanical property of the composite material along the axial direction of fibers is superior, but the transverse properties such as interlaminar shearing and the like are poor, the domestic existing carbon fiber anchorage device is complex in structure, the transverse stress of the composite material at an anchoring position is large, the anchoring efficiency is low, the strength advantage of the composite material cannot be fully exerted, the industrial processing is not easy, and the composite inhaul cable is difficult to apply to the large-tension composite inhaul cables. Therefore, in the aspect of the composite material anchoring method, a continuous perfect technology is needed, the composite material inhaul cable anchoring method with good anchoring effect and the corresponding construction process thereof are formed, the construction is convenient, the materials are reasonably, efficiently and accurately used, and better environmental and economic benefits are achieved.
Disclosure of Invention
The technical problem is as follows:
the present invention is directed to solving, at least to some extent, one of the technical problems presented in the related art. Therefore, the invention aims to provide a composite material inhaul cable anchoring method. According to the composite material inhaul cable anchoring method, the friction force generated by winding the composite material inhaul cable body on the fixing piece is used for transmitting the tension in the composite material inhaul cable body to the fixing piece, an anchorage structure required by traditional inhaul cable anchoring is omitted, the transverse effect of the fastening force of an anchorage at the anchoring part on the composite material inhaul cable body is eliminated, the anchoring efficiency of the composite material inhaul cable is effectively improved, the composite material inhaul cable anchoring method has the characteristics of simple structure, easiness in factory processing and the like, and has a wide application prospect in the field of civil engineering.
The technical scheme is as follows:
according to one embodiment of the invention, the composite material cable anchoring method comprises the following steps:
a composite material cable anchoring method comprises the following steps:
s1: symmetrically fixing two fixing pieces which are cylindrical, ensuring that the axes of the two fixing pieces are parallel and aligned on two sides of the width, and the axes of the two fixing pieces are vertical to the length direction of the composite material cable body;
s2: the two ends of the composite material cable body are respectively divided into i strands to form a stranded cable body positioned at the two ends and a cable body main body positioned in the middle, the stranded cable body at each end is respectively wound on the fixing piece on the same side by k circles, the number of strands on the upper side and the lower side of the fixing piece is the same, so that the moments of the upper side stranded cable body and the lower side stranded cable body on the fixing piece are mutually offset after the upper side stranded cable body and the lower side stranded cable body are wound on the fixing piece, the stranded cable body is wound from the middle to the two sides by the fixing piece, the number of strands on the two sides is the same, and the stress of the fixing piece in the direction vertical to the axial direction is mutually balanced;
s3: bonding the outer surface of the fixing piece and the stranded cable body by using an adhesive, and bonding the tail end of the wound stranded cable body and the cable body main body by using the adhesive;
s4: heating and curing the composite material cable body, wherein the temperature and time of high-temperature treatment are determined according to the curing conditions of the prepreg;
s5: and installing a clamp at the bonding position of the tail end of the stranded cable body and the cable body main body, and fixing the tail end of the stranded cable body and the cable body main body by the clamp.
Further, in step S2, the composite cable body is divided into i strands, the value of i is 4,8, \ 8230, 4n, n is a positive integer, some strands of the stranded cable body are wound from the upper side of the fixing member, other strands are wound from the lower side of the fixing member, the number of strands of the composite cable body wound from the upper side of the fixing member is equal to the number of strands of the composite cable body wound from the lower side of the fixing member, and the moments of the upper and lower stranded cable bodies wound on the fixing member are offset.
Furthermore, the fixing piece is a metal ring and comprises a horizontal section and two S-shaped sections positioned at two ends of the horizontal section, the diameter of the metal ring at the horizontal section is kept unchanged, and along the direction far away from the horizontal section, the diameter of the metal ring at the S-shaped sections is increased first and then is reduced, and then is gradually increased until a fixed numerical value is kept unchanged; in a step S3, the process is carried out,
i, the stranded cable body is wound by k circles from the middle to one end of the two ends from the upper side and the lower side of the fixing piece respectively, the k value is a positive integer, the cable body is wound on a metal ring to generate friction force to realize self-locking of a winding rod of the composite cable body, wherein the 1 st circle of the stranded cable body is wound on the horizontal section of the metal ring, and the 1 st circle of the stranded cable body is sequentially overlapped and wound on the s-shaped section of the metal ring; the number of strands of the metal ring from the middle to the two sides is the same, and the wound cable body is symmetrical about a neutral plane perpendicular to the axis direction of the fixing piece, so that the stress of the fixing piece in the direction perpendicular to the axial direction of the fixing piece can be balanced mutually.
Furthermore, the fixing piece is a metal rod, the peripheral wall of the fixing piece is provided with a plurality of thread grooves with the same thread pitch and opposite rotation directions, and the thread grooves are respectively connected end to end; in a step S3 of the method,
the i strands of the stranded cable bodies are respectively wound by k rings from the middle to one end of each of the two ends of the upper side and the lower side of the fixing piece, the k value is a positive integer, the cable bodies are wound on the metal rod by friction force generated by winding the cable bodies, the composite material cable bodies are wound by self-locking the rods, the stranded cable bodies are continuously wound by the k rings in a reciprocating mode in thread grooves of the metal rod, the number of the stranded strands on the two sides of the metal rod is the same, the wound cable bodies are symmetrical about a neutral plane perpendicular to the axis direction of the fixing piece, and stress of the fixing piece in the direction perpendicular to the axial direction of the fixing piece is balanced mutually.
The invention also provides a composite material inhaul cable prepared by the composite material inhaul cable anchoring method, and the composite material inhaul cable comprises the following components:
the composite material cable body comprises a cable body main body and two stranded cable bodies positioned at two ends of the cable body main body, wherein each stranded cable body comprises i strands, and the tail ends of the stranded cable bodies are bonded with the cable body main body through an adhesive;
the fixing pieces are respectively wound on the two fixing pieces and bonded through an adhesive, the axes of the two fixing pieces are parallel and aligned with each other on two sides of the width, and the axes of the two fixing pieces are perpendicular to the length direction of the composite material cable body; the number of strands on the upper side and the lower side of the fixing piece is the same, so that the torque of the fixing piece is offset by the upper side strand cable body and the lower side strand cable body after being wound on the fixing piece, the strand cable bodies are wound from the middle to the two sides by the fixing piece, the number of strands on the two sides is the same, and the stress of the fixing piece in the direction vertical to the axial direction is balanced;
the two clamps are arranged at the bonding part of the cable body tail end and the cable body main body and fix the cable body tail end and the cable body main body.
Furthermore, the composite material cable body can be made of glass fiber, carbon fiber or other composite materials, and the fiber direction of the composite material cable body is the same as the length direction of the composite material cable body.
Furthermore, the fixing piece can be made of stainless steel or other alloy materials.
Further, the width of the fixing piece is larger than that of the composite material cable body.
Furthermore, the mounting is the becket, the perisporium of becket is equipped with horizontal segment and two S-shaped sections along its circumference, and the horizontal segment is located the middle part of becket, and two S-shaped sections are located the horizontal segment both sides respectively, and the diameter of becket of horizontal segment department keeps unchangeable, and along keeping away from the horizontal segment direction, the earlier grow of the diameter of becket of S-shaped section department afterwards diminishes, and then crescent to fixed numerical value keeps unchangeable.
Furthermore, the fixing piece is a metal rod, a plurality of thread grooves with the same thread pitch and opposite rotation directions are formed in the peripheral wall of the metal rod, the thread grooves are connected end to end respectively, and the cable body is wound in the thread grooves in a reciprocating and continuous mode for k circles.
Furthermore, the surface of the composite material cable body and the outer surface of the fixing piece as well as the tail end of the cable body and the cable body main body are bonded and fixed by adopting adhesives. Furthermore, the clamp is made of a high polymer material, so that the tail end of the cable body is prevented from being scattered or adhesive is prevented from being bonded to be invalid, and the acting force of the clamp on the composite cable body is small.
Further, the vertical angle between the stranded cable bodies should be small.
Further, the outer surface of the fixing piece, which is in contact with the composite material cable body, is a frosted surface.
Has the advantages that:
compared with the prior composite material inhaul cable anchoring technology, the invention has the following advantages:
1) The anchoring effect is reliable, and the ultimate strength of the composite material can be fully exerted;
2) Good durability and high anchoring efficiency. The winding type anchoring method fully utilizes the combined action of winding and adhesive, and the anchoring is completed through the combined action of the winding, the friction force and the adhesive of the composite material inhaul cable, so that the anchoring efficiency is improved to a greater extent.
3) The composite material inhaul cable can be designed to adopt a free end form, the inhaul cable is self-locked by a winding rod, the tension in the composite material inhaul cable is transmitted to the fixing piece, a clamp with small acting force on the inhaul cable can be adopted to replace an anchorage device, and the tail end of the inhaul cable with small tension is fixed on the cable body in a bonding way;
4) The symmetrical winding design is adopted, so that the spatial symmetry of the stress of the composite material cable body can be ensured, and the uneven stress of the composite material cable is avoided;
5) The anchoring method can adjust the length and the number of winding turns of the composite material inhaul cable according to actual requirements, is more convenient to construct, can reduce the construction cost, and is favorable for large-area popularization and application in the field of civil engineering;
6) The metal rod with the groove design is adopted, the stay cable is wound in the fixed groove, the phenomenon that the cable bodies made of the composite materials are extruded mutually to influence the stress of the cable bodies can be avoided, meanwhile, the cable bodies are overlapped and wound on the outer ring, and the cable bodies wound on the outer ring can protect the cable bodies on the inner ring to a certain degree.
Drawings
Fig. 1 is a schematic view (metal ring) of the anchoring structure of the composite material cable according to the embodiment of the present invention.
Fig. 2 is a front view (metal ring) of a composite material cable anchoring structure of an embodiment of the present invention.
Fig. 3 is a schematic view of a metal ring of the composite material cable anchoring structure according to the embodiment of the present invention.
FIG. 4 is a side view of a metal ring of a composite cable anchoring structure according to an embodiment of the present invention.
Fig. 5 is a schematic view of a winding manner of the composite material cable on the metal ring according to the embodiment of the present invention.
Fig. 6 is a schematic view of the anchoring structure of the composite material cable according to the embodiment of the present invention (metal rod).
Fig. 7 is a front view (metal rod) of a composite material cable anchoring structure of an embodiment of the present invention.
FIG. 8 is a schematic view of a metal rod of a composite material cable anchoring structure according to an embodiment of the present invention.
FIG. 9 is a side view of a metal rod of a composite cable anchoring structure according to an embodiment of the present invention.
Fig. 10 is a schematic view of a winding manner of a composite material cable on a metal rod according to an embodiment of the present invention.
The cable comprises a composite cable A, a composite cable body 100, a cable body main body 101, a cable body tail end 102, a stranded cable body 103, a stranded cable body side bundle 1031, a stranded cable body middle bundle 1032, a stranded cable body middle bundle 1033, a stranded cable body side bundle 1034, a fixing piece 200, a metal ring 200a, a metal ring horizontal section 201a, a metal ring s section 202a, a metal rod 200b, a metal rod thread groove 201b, a metal rod horizontal section 202b and a clamp 300.
Detailed Description
The present invention will now be described in more detail with reference to the accompanying schematic drawings, in which preferred embodiments of the invention are shown, it being understood that one skilled in the art may modify the invention herein described while still achieving the advantageous effects of the invention. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the invention.
The composite material cable anchoring method according to the embodiment of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1 to 10, a composite material cable anchoring method according to an embodiment of the present invention includes the following:
s1: symmetrically fixing two fixing pieces 200, wherein the fixing pieces 200 are cylindrical;
s2: the two ends of the composite material cable body 100 are respectively divided into i strands to form a stranded cable body 103 positioned at the two ends and a cable body main body 101 positioned in the middle, the stranded cable body 103 at each end is respectively wound on the fixing piece on the same side by k circles, the number of strands on the upper side and the lower side of the fixing piece 200 is the same, so that the moments of the upper side stranded cable body 103 and the lower side stranded cable body 103 on the fixing piece 200 are mutually offset after being wound on the fixing piece 200, the stranded cable body 103 is wound from the middle to the two sides by the fixing piece 200, the number of strands on the two sides is the same, and the stress of the fixing piece 200 in the direction vertical to the axial direction is mutually balanced;
s3: bonding the outer surface of the fixing piece 200 and the stranded cable body 103 by using an adhesive, and bonding the tail end of the wound stranded cable body 103 and the cable body main body 101 by using the adhesive;
s4: heating and curing the composite material cable body 100;
s5: a clamp 300 is installed at the bonding position of the tail end of the stranded cable body 103 and the cable body 101, and the clamp 300 fixes the tail end of the stranded cable body 103 and the cable body 101.
In S1, the fixing member 200 is made of a relatively strong material, preferably a metal material, such as stainless steel or other alloy materials. The fixing member 200 may be a metal rod, a metal ring, or the like. The outer surface of the fixing member in contact with the composite material cable body is preferably a frosted surface.
In step S2, the composite cable is divided into i strands, the value of i is 4,8, \8230, 4n, n is a positive integer, some strands of the stranded cable 103 are wound from the upper side of the fixing member 200, other strands are wound from the lower side of the fixing member 200, the number of strands of the composite cable wound from the upper side of the fixing member 200 is equal to the number of strands of the composite cable wound from the lower side of the fixing member 200, and the torque of the fixing member 200 after the upper and lower stranded cables 103 are wound on the fixing member 200 is cancelled.
In S2, the composite cord 100 is formed by bonding a plurality of pre-impregnated unidirectional carbon fiber filaments, pultruded carbon fiber filaments, or other composite material into a strand. The width of the fixing member 200 is greater than that of the composite material cord body 100.
In S4, the temperature and time of the high-temperature treatment are determined according to the curing conditions of the prepreg used.
In one embodiment, the fixing member 200 is a metal ring 200a, which includes a horizontal section 201a and two S-shaped sections 202a located at two ends of the horizontal section 201a, wherein the diameter of the metal ring 200a at the horizontal section 201a is kept unchanged, and along a direction away from the horizontal section, the diameter of the metal ring 200a at the S-shaped section 202a is increased first and then decreased, and then gradually increased until a fixed value is kept unchanged;
in step S3, i strands of the stranded cable body 103 are respectively wound from the middle to one of the two ends of the upper side and the lower side of the metal ring 200a by k turns, where the value of k is a positive integer, and the friction force generated when the cable body is wound on the metal ring 200a realizes the self-locking of the composite material cable body 100 around the rod, where the 1 st turn of the stranded cable body 103 is wound on the horizontal section 201a of the metal ring 200a, and the 1 st turn is sequentially overlapped and wound on the S-shaped section 202a of the metal ring 200 a; the two sides of the metal ring 200a are wound with the same number of strands, and the wound cable body is symmetrical about a neutral plane perpendicular to the axial direction of the fixing piece, so that the stress of the metal ring 200a in the axial direction perpendicular to the neutral plane can be balanced mutually.
In one embodiment, the fixing member 200 is a metal rod 200b, and the peripheral wall thereof is provided with a plurality of thread grooves 201b with the same thread pitch and opposite rotation directions, and the thread grooves 201b are respectively connected end to end;
in step S3, i strands of the stranded cable body 103 are respectively wound from the middle to one of the two ends of the upper side and the lower side of the metal rod 200b by k turns, where k is a positive integer, and the friction force generated when the cable body is wound on the metal rod 200b realizes the self-locking of the composite material cable body 100 around the rod, where the stranded cable body 103 is continuously wound in the thread groove 201b of the metal rod 200b by k turns in a reciprocating manner, the number of strands on the two sides of the metal rod 200b is the same, and the wound cable body is symmetrical about a neutral plane perpendicular to the axial direction of the fixing member, so that the stresses on the metal rod 200b in the axial direction perpendicular to the fixing member are balanced.
The two fixing members 200 can limit the position of the composite material cable 100, and prevent the composite material cable 100 from being transversely pressed against each other after being wound on the fixing member 200, which affects the stress of the cable, and it can be understood that the fixing member 200 can be designed into other structural forms as long as it can satisfy the above effects.
According to the composite material inhaul cable anchoring method, the friction force existing when the composite material cable body 100 is wound on the fixing piece 200 can realize the self-locking of the winding rod of the composite material cable body 100, the tension in the composite material cable body 100 is transmitted to the fixing piece 200 through the friction force generated when the composite material cable body 100 is wound on the fixing piece 200, an anchorage device structure required by the traditional inhaul cable anchoring is omitted, the transverse action of the fastening force of an anchorage device at the anchoring part on the composite material cable body 100 is eliminated, the anchoring efficiency of the composite material inhaul cable is effectively improved, the construction is convenient, the composite material inhaul cable can be adjusted according to the length required by the actual engineering, and the composite material inhaul cable has wide application prospects in the field of civil engineering.
According to one embodiment of the present invention, the composite cable body 100 is divided into i strands, i may have a value of 4,8, \ 8230;, 4n, and the number of strands of the composite cable body 100 starting to be wound on the upper side of the fixing member 200 is equal to the number of strands of the composite cable body 100 starting to be wound on the lower side of the fixing member 200. When i =4, the middle 2 bundles 1032, 1033 of the stranded cable body 103 and the remaining 2 bundles 1031, 1034 on both sides are respectively wound from the upper side or the lower side of the fixing member 200, so that the moments generated by the composite cable body 100 wound on the fixing member 200 can be mutually offset.
According to one embodiment of the present invention, the stranded cable body 103 is wound with k turns from the middle to both ends of the upper and lower sides of the fixing member 200, respectively, and the k value may be 1,2, \ 8230;, m. The 1 st turn of the stranded cable body 103 is wound on the horizontal section 201a of the metal ring 200a, and the 1 st turn is sequentially overlapped and wound on the s-shaped section 202a of the metal ring; the stranded cable body 103 is symmetrically wound in the threaded groove 201b of the metal rod 200b, ensuring that the wound cable body is symmetrical about a neutral plane perpendicular to the axial direction of the fixing member 200.
In addition, the embodiment of the invention also provides a composite material inhaul cable A prepared by the composite material inhaul cable anchoring method according to the embodiment of the invention.
The composite material inhaul cable A comprises:
the composite material cable body 100 comprises a cable body main body 101 and two stranded cable bodies 103 positioned at two ends of the cable body main body 101, wherein each stranded cable body 103 comprises i strands, and the tail ends of the stranded cable bodies 103 are bonded with the cable body main body 101 through an adhesive;
the fixing piece 200 is provided with two fixing pieces 200, two stranded cable bodies 103 are respectively wound on the two fixing pieces 200 and are bonded through an adhesive, the axes of the two fixing pieces 200 are parallel and aligned on two sides of the width, and the axes of the two fixing pieces 200 are perpendicular to the length direction of the composite cable body 100; the number of strands on the upper side and the lower side of the fixing piece 200 is the same, so that the moments of the fixing piece 200 after the upper side stranded cable body 103 and the lower side stranded cable body 103 are wound on the fixing piece 200 are mutually offset, the stranded cable bodies 103 are wound from the middle to the two sides from the fixing piece 200, the number of strands on the two sides is the same, and the stress of the fixing piece 200 in the axial direction vertical to the fixing piece 200 is mutually balanced;
the two clamps 300 are arranged at the bonding position of the cable body tail end 102 and the cable body 101, and the cable body tail end 102 and the cable body 101 are fixed through the two clamps 300.
According to one embodiment of the present invention, a composite material cable a includes: the composite material cable body 100 is formed by evenly winding i strands of the composite material cable body 100 on the fixing piece 200 in a specific mode for k circles and then curing the composite material cable body 100, wherein the part, located between the two clamps 300, of the composite material cable body 100 is a cable body main body 101, the part, evenly divided into i strands, of the composite material cable body 100 is a stranded cable body 103, and the tail ends of the stranded cable bodies 103 are combined to form a cable body tail end 102; the two fixing pieces 200 are symmetrically fixed, so that the axes of the two fixing pieces 200 are parallel and aligned on two sides of the width, and the axes of the two fixing pieces 200 are perpendicular to the length direction of the composite material cable body 100; the two clamps 300 are arranged at the bonding position of the cable body tail end 102 and the cable body 101, and the two clamps 300 fix the cable body tail end 102 and the cable body 101.
According to an embodiment of the present invention, the composite cable body 100 may be made of glass fiber, carbon fiber or other artificial fiber composite material, and the fiber direction of the composite cable body 100 is the same as the length direction of the composite cable body 100.
According to one embodiment of the present invention, the composite material cord body 100 may be formed using, but not limited to, the following methods:
performing pre-dipping treatment on unidirectional carbon fiber wires, stranding and symmetrically winding the carbon fiber wires on the fixing pieces 200 at two ends in a specific mode, and heating and curing to form the carbon fiber wires;
the pultruded carbon fiber filaments are symmetrically wound on the two end fixing pieces 200 in strands and are bonded to form the carbon fiber filament bundle.
According to one embodiment of the present invention, the fixing member 200 may be made of stainless steel or other alloy.
According to one embodiment of the invention, the width of the anchor 200 is greater than the width of the composite cord.
According to an embodiment of the present invention, the outer surface of the fixing element 200 is to limit the position of the composite cable 100, and prevent the composite cable 100 from being pressed against each other in the transverse direction after being wound on the fixing element 200, which affects the stress of the cable, and the composite fixing element 200 can be designed in, but not limited to, the following structural forms: the middle position of the metal ring 200a is designed into a horizontal section 201a, the horizontal section is designed into an s-shaped section 202a which is convex and concave towards two sides, and extends to two sides of the metal ring 200a with a proper inclination angle; the metal rod 200b is designed to be provided with thread grooves 201b with the same thread pitch and opposite rotation directions, and the composite material cable body 100 is sequentially overlapped and wound by k turns in the thread grooves 201b of the metal rod.
According to one embodiment of the present invention, the outer surface of the fixing member 200 contacting the composite material cable body 100 is a frosted surface.
According to one embodiment of the invention, the clamp 300 is made of a high polymer material, so that the cable body tail end 102 is prevented from being scattered or adhesive bonding fails, and the acting force of the clamp 300 on the composite material cable body 100 is small.
According to one embodiment of the invention, the surface of the composite material cable body 100 and the outer surface of the fixing piece 200, and the cable body tail end 102 and the cable body 101 are bonded and fixed by using an adhesive.
According to one embodiment of the invention, the composite cable body is stranded at a location where the vertical angle between the stranded cable bodies should be small.
Finally, in which the drawings are designed as an illustration only, and not as a definition of the limits of the invention, the drawings are provided as schematic representations rather than as physical representations; for a better explanation of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The examples of the present invention are only for describing the preferred embodiments of the present invention, and not for limiting the concept and scope of the present invention, and various modifications and improvements of the technical solution of the present invention made by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention.
Claims (10)
1. A composite material inhaul cable anchoring method is characterized by comprising the following steps:
s1: symmetrically fixing two fixing pieces which are cylinders;
s2: the two ends of the composite material cable body are respectively divided into i strands to form a stranded cable body positioned at the two ends and a cable body main body positioned in the middle, the stranded cable body at each end is respectively wound on the fixing piece on the same side by k circles, the number of strands on the upper side and the lower side of the fixing piece is the same, so that the moments of the upper side stranded cable body and the lower side stranded cable body on the fixing piece are mutually offset after the upper side stranded cable body and the lower side stranded cable body are wound on the fixing piece, the stranded cable body is wound from the middle to the two sides by the fixing piece, the number of strands on the two sides is the same, and the stress of the fixing piece in the direction vertical to the axial direction is mutually balanced;
s3: bonding the outer surface of the fixing piece and the stranded cable body by using an adhesive, and bonding the tail end of the wound stranded cable body and the cable body main body by using the adhesive;
s4: heating and curing the composite material cable body;
s5: and installing a clamp at the bonding position of the tail end of the stranded cable body and the cable body main body, and fixing the tail end of the stranded cable body and the cable body main body by the clamp.
2. The composite material inhaul cable anchoring method according to claim 1, wherein in step S2, the composite material inhaul cable body is divided into i strands in parallel, wherein the value of i is 4,8, \8230, 4n, n is a positive integer, partial strands of the stranded cable body are wound from the upper side of the fixing member, other partial strands are wound from the lower side of the fixing member, the number of strands of the composite material inhaul cable body wound from the upper side of the fixing member is equal to the number of strands of the composite material inhaul cable body wound from the lower side of the fixing member, and the torque of the upper and lower partial strands wound on the fixing member is mutually offset.
3. The composite material inhaul cable anchoring method according to claim 1, wherein the fixing member is a metal ring which comprises a horizontal section and two S-shaped sections positioned at two ends of the horizontal section, the diameter of the metal ring at the horizontal section is kept unchanged, and along the direction away from the horizontal section, the diameter of the metal ring at the S-shaped sections is firstly increased and then decreased, and then is gradually increased until a fixed numerical value is kept unchanged;
in step S3, i strands of the stranded cable bodies are respectively wound by k turns from the middle to one of two ends on the upper side and the lower side of the metal ring, the value of k is a positive integer, and the friction force generated when the cable bodies are wound on the metal ring realizes the self-locking of the winding rods of the composite material cable bodies, wherein the 1 st turn of the stranded cable bodies is wound on the horizontal section of the metal ring, and the 1 st turn is sequentially overlapped and wound on the S-shaped section of the metal ring; the number of strands of the metal ring from the middle to the two sides is the same, and the wound cable body is symmetrical about a neutral plane perpendicular to the axis direction of the fixing piece, so that the stress of the metal ring perpendicular to the axial direction of the fixing piece can be balanced.
4. The composite material cable anchoring method as defined in claim 1, wherein the fixing member is a metal rod having a peripheral wall provided with a plurality of thread grooves of the same pitch and opposite rotation directions, the thread grooves being connected end to end, respectively;
in step S3, i strands of the stranded cable body are respectively wound by k turns from the middle to one of the two ends on the upper side and the lower side of the fixing piece, the value of k is a positive integer, the cable body is wound on the metal rod by the friction force generated by the cable body, so that the self-locking of the composite material cable body around the metal rod is realized, wherein the stranded cable body is continuously wound by k turns in a reciprocating manner in the thread groove of the metal rod, the number of strands on the two sides of the metal rod is the same, and the wound cable body is symmetrical about a neutral plane perpendicular to the axial direction of the metal rod, so that the stress of the metal rod in the axial direction perpendicular to the metal rod is balanced.
5. A composite cable produced by the composite cable anchoring method as recited in claim 1, characterized in that the composite cable comprises:
the composite material cable body comprises a cable body main body and two stranded cable bodies positioned at two ends of the cable body main body, wherein each stranded cable body comprises i strands, and the tail ends of the stranded cable bodies are bonded with the cable body main body through an adhesive;
the two stranded cable bodies are respectively wound on the two fixing pieces and are bonded through an adhesive, the axes of the two fixing pieces are parallel and aligned with each other on two sides of the width, and the axes of the two fixing pieces are perpendicular to the length direction of the composite cable body; the number of strands on the upper side and the lower side of the fixing piece is the same, so that the moments of the fixing piece are mutually offset after the upper side strand cable body and the lower side strand cable body are wound on the fixing piece, the strand cable bodies are wound from the middle to the two sides by the fixing piece, the number of strands on the two sides is the same, and the stress of the fixing piece in the direction vertical to the axial direction of the fixing piece is mutually balanced;
the two clamps are arranged at the bonding part of the cable body tail end and the cable body main body and fix the cable body tail end and the cable body main body.
6. The composite material ripcord according to claim 5, characterized in that the composite material ripcord body comprises glass fiber, carbon fiber, and the fiber direction of the composite material ripcord body is the same as the length direction of the composite material ripcord body.
7. The composite tension cable of claim 5, wherein the width of the anchor is greater than the width of the composite cable body.
8. The composite tension cable of claim 5,
the fixing piece is a metal ring, a horizontal section and two S-shaped sections are arranged on the peripheral wall of the metal ring along the circumferential direction of the metal ring, the horizontal section is located in the middle of the metal ring, the two S-shaped sections are located on two sides of the horizontal section respectively, the diameter of the metal ring at the horizontal section is kept unchanged, the diameter of the metal ring at the S-shaped section is increased first and then reduced along the direction far away from the horizontal section, and then the diameter of the metal ring is gradually increased until a fixed numerical value is kept unchanged.
9. A composite tension cable according to claim 5,
the fixing piece is a metal rod, a plurality of thread grooves with the same thread pitch and opposite rotation directions are formed in the peripheral wall of the metal rod, the thread grooves are connected end to end respectively, and the cable body is wound in the thread grooves in a reciprocating and continuous mode for k circles.
10. The composite material tension cable of claim 5, wherein the clamp is made of polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211391431.6A CN115680195A (en) | 2022-11-07 | 2022-11-07 | Composite material inhaul cable anchoring method and composite material inhaul cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211391431.6A CN115680195A (en) | 2022-11-07 | 2022-11-07 | Composite material inhaul cable anchoring method and composite material inhaul cable |
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| CN115680195A true CN115680195A (en) | 2023-02-03 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202022692U (en) * | 2011-03-01 | 2011-11-02 | 南通力威机械有限公司 | Winding drum of winch for large-scale crane installation engineering |
| CN102251474A (en) * | 2011-04-27 | 2011-11-23 | 南通大学 | Frictional anchorage device applied to fibre reinforced composite cables |
| JP2014218336A (en) * | 2013-05-09 | 2014-11-20 | 東京製綱株式会社 | Pendant cord and terminal structure of carbon fiber strand provided in tensioned state |
| CN112064504A (en) * | 2020-09-09 | 2020-12-11 | 清华大学 | Self-anchored carbon fiber inhaul cable |
-
2022
- 2022-11-07 CN CN202211391431.6A patent/CN115680195A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202022692U (en) * | 2011-03-01 | 2011-11-02 | 南通力威机械有限公司 | Winding drum of winch for large-scale crane installation engineering |
| CN102251474A (en) * | 2011-04-27 | 2011-11-23 | 南通大学 | Frictional anchorage device applied to fibre reinforced composite cables |
| JP2014218336A (en) * | 2013-05-09 | 2014-11-20 | 東京製綱株式会社 | Pendant cord and terminal structure of carbon fiber strand provided in tensioned state |
| CN112064504A (en) * | 2020-09-09 | 2020-12-11 | 清华大学 | Self-anchored carbon fiber inhaul cable |
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