Lifting mechanism replacement strut CFRP cable dome and lifting mechanism embedded strut CFRP cable dome

Abstract

In the application of carbon fiber composite cables in prestressed spatial structures, this invention provides a lifting mechanism for replacing struts in CFRP cable domes and a lifting mechanism for embedding struts in CFRP cable domes. The lifting function of the struts is achieved by embedding or replacing the struts with a lifting component. The lifting component includes a diamond-shaped lifting frame, lifting cables, radial cable connectors, and ring cable connectors. By replacing or embedding this component in the struts, tensioning of the ring cables and inclined cables can be avoided, and it can be applied to all-CFRP cable domes. In this invention, the ring cables are discontinuous at corners, avoiding stress perpendicular to the fiber direction and overcoming the weakness of the transverse mechanical properties of carbon fiber composite cables. The lifting component is hinged and rotated along the radial direction of the cable dome at the connection points with the radial cables and ring cable connectors, preventing additional bending moments and shear forces from being generated during the lifting process.

Description

Technical Field

[0001] This invention relates to the application of carbon fiber composite cables in prestressed spatial structures, and particularly to a CFRP cable dome with a jacking mechanism replacing struts and a CFRP cable dome with a jacking mechanism embedded in struts. Background Technology

[0002] Prestressed spatial structures, as a special structural form, are increasingly used in public buildings such as stadiums, exhibition facilities, and transportation hubs due to their aesthetic appeal and ability to meet the requirements of larger spans. Among the many components of prestressed spatial structures, cables are key components for improving the structure's span, load-bearing capacity, and stability. With the increasing number of prestressed spatial structure engineering projects and their growing service life, problems such as the heavy weight of steel cables, poor corrosion resistance, high coefficient of linear expansion, and significant temperature sensitivity have gradually become apparent. Faced with the construction requirements of prestressed spatial structures for ultra-large spans and long lifespans, the selection of lighter, higher-strength, and more durable building materials is imperative. Carbon fiber reinforced composite materials, with their lightweight, high strength, good corrosion resistance, and low temperature sensitivity, can solve many of the significant problems associated with traditional steel cables. In recent years, they have been widely used in various fields and are a new type of material in civil engineering that can replace traditional steel cables in cable dome structures. However, CFRP cables are difficult to bend, have weak lateral (perpendicular to fiber direction) mechanical properties, and most anchorage structures are not suitable for high-altitude tensioning. Therefore, bending and tensioning of CFRP cables should be avoided during the construction of cable domes. It is evident that the jacking strut method is the most suitable method for forming CFRP cable domes, but research in this field is lacking. Summary of the Invention

[0003] To address the aforementioned problems, there is an urgent need to develop a new cable dome system that eliminates bending of the CFRP cable body and does not rely on the tension cable body for its structural form and stress characteristics. This invention provides a CFRP cable dome with a lifting mechanism replacing the strut and a CFRP cable dome with a lifting mechanism embedded with a strut, specifically including:

[0004] A jacking mechanism for replacing struts in a CFRP cable dome includes: radial cables, ring cables, inclined cables, a jacking assembly, ring cable connectors, and radial cable connectors;

[0005] The lifting assembly includes: a diamond-shaped lifting frame and lifting cables;

[0006] The diamond-shaped lifting frame includes four lifting rods of the same length, which are connected end to end by hinges.

[0007] The two ends of the lifting cable are respectively installed on the two apex corners of the diamond-shaped lifting frame, and the lifting cable is set horizontally;

[0008] The radial cable connector is installed at the top corner of the diamond-shaped lifting frame, and the radial cable connector is used to connect the inclined cable and the radial cable;

[0009] The ring cable connector is installed at the bottom apex of the diamond-shaped lifting frame, and the ring cable connector is used to connect the inclined cable and the ring cable.

[0010] Preferably, the rhomboid lifting frame further includes: a first pin and a second pin;

[0011] There are two first pins, which are respectively installed on the two vertically set top corners of the rhomboid lifting frame. One end of the two lifting rods at the top is respectively hinged to the first pin at the top, and one end of the two lifting rods at the bottom is respectively hinged to the first pin at the bottom.

[0012] There are two second pins, which are respectively installed on the two horizontally set top corners of the diamond-shaped lifting frame. The other ends of the two top lifting rods are respectively hinged to the other ends of the two bottom lifting rods through the second pins set on the same side.

[0013] The length of the first pin is longer than that of the second pin.

[0014] Preferably, the radial cable connector includes: a first cylindrical base, an upper lifting rod lug, and a radial cable lug;

[0015] The first cylindrical base is cylindrical in shape;

[0016] The upper lifting rod ear plate is disposed on the lower bottom surface of the first columnar base, the upper lifting rod ear plate is provided with the first pin through hole, and the upper lifting rod ear plate is installed on the first pin at the top of the rhomboid lifting frame;

[0017] The number of radial lugs is four, and the radial lugs are arranged circumferentially on the side wall of the first columnar base. The surface of the radial lugs is spatially perpendicular to the upper surface of the first columnar base.

[0018] Preferably, the ring cable connector includes: a second cylindrical base, a ring cable lug plate, and a lower lifting rod lug plate;

[0019] The lower lifting rod lug plate is set on the upper bottom surface of the second columnar base.

[0020] The lower lifting rod lug plate is provided with a through hole for installing the first pin, and the lower lifting rod lug plate is installed on the first pin at the bottom of the diamond-shaped lifting frame.

[0021] Preferably, the lifting cable is made of carbon fiber composite material.

[0022] A CFRP cable dome with an embedded strut in a lifting mechanism includes: radial cables, ring cables, inclined cables, a lifting assembly, a first strut, a second strut, a ring cable connector, and a radial cable connector.

[0023] The lifting assembly includes: a diamond-shaped lifting frame and lifting cables;

[0024] The diamond-shaped lifting frame includes four lifting rods of the same length, which are connected end to end by hinges.

[0025] The two ends of the lifting cable are respectively installed on the two apex corners of the diamond-shaped lifting frame, and the lifting cable is set horizontally;

[0026] One end of the first strut is installed on the top corner of the diamond-shaped lifting frame, and the other end of the first strut is installed on the radial cable connector; the radial cable connector is used to connect the inclined cable and the radial cable.

[0027] One end of the second strut is installed on the bottom corner of the diamond-shaped lifting frame, and the other end of the second strut is installed on the ring cable connector, which is used to connect the inclined cable and the ring cable.

[0028] Preferably, the rhomboid lifting frame further includes: a first pin and a second pin;

[0029] There are two first pins, which are respectively installed on the two vertically set top corners of the rhomboid lifting frame. One end of the two lifting rods at the top is respectively hinged to the first pin at the top, and one end of the two lifting rods at the bottom is respectively hinged to the first pin at the bottom.

[0030] There are two second pins, which are respectively installed on the two horizontally set top corners of the diamond-shaped lifting frame. The other ends of the two top lifting rods are respectively hinged to the other ends of the two bottom lifting rods through the second pins set on the same side.

[0031] The length of the first pin is longer than that of the second pin.

[0032] Preferably, the radial cable connector includes: a first cylindrical base, an upper lifting rod lug, and a radial cable lug;

[0033] The first cylindrical base is cylindrical in shape;

[0034] The upper lifting rod ear plate is disposed on the lower bottom surface of the first columnar base, the upper lifting rod ear plate is provided with the first pin through hole, and the upper lifting rod ear plate is installed on the first pin at the top of the rhomboid lifting frame;

[0035] The number of radial lugs is four, and the radial lugs are arranged circumferentially on the side wall of the first columnar base. The surface of the radial lugs is spatially perpendicular to the upper surface of the first columnar base.

[0036] Preferably, the ring cable connector includes: a second cylindrical base, a ring cable lug plate, and a lower lifting rod lug plate;

[0037] The lower lifting rod lug plate is set on the upper bottom surface of the second columnar base.

[0038] The lower lifting rod lug plate is provided with a through hole for installing the first pin, and the lower lifting rod lug plate is installed on the first pin at the bottom of the diamond-shaped lifting frame.

[0039] Preferably, the lifting cable is made of carbon fiber composite material.

[0040] The above technical solution has at least the following advantages compared with the existing technology:

[0041] In the embodiments of the present invention, the loop cables in the new cable dome system are discontinuous at the corners, which avoids the loop cables being subjected to force in the direction perpendicular to the fibers and overcomes the weakness of the transverse mechanical properties of carbon fiber composite cables.

[0042] This structure avoids tensioning of the ring cables and diagonal cables by replacing the struts with the proposed lifting mechanism or arranging it within the struts, thus allowing the application of anchorage forms that are inconvenient to tension to carbon fiber cable domes.

[0043] The lifting assembly is hinged and rotates along the radial direction of the cable dome, which avoids the generation of additional bending moment and shear force during the lifting process.

[0044] This lifting assembly has clearly defined jacking points, facilitating the design of lifting fixtures and the lifting operation.

[0045] The lifting cables designed in this lifting assembly make full use of the superior tensile properties of carbon fiber composites. Attached Figure Description

[0046] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 Schematic diagram of a CFRP cable dome structure for replacing the struts of the lifting mechanism;

[0048] Figure 2 The arrangement of the lifting mechanism when replacing the struts;

[0049] Figure 3 A schematic diagram of the CFRP cable dome structure with embedded struts in the lifting mechanism;

[0050] Figure 4 This refers to the arrangement of the lifting mechanism when the support rod is embedded within the lifting mechanism.

[0051] Figure 5 This is a schematic diagram of the diamond-shaped lifting frame.

[0052] Figure 6 This is a schematic diagram of the radial cable connector.

[0053] Figure 7 This is a schematic diagram of the ring cable connector.

[0054] Figure label:

[0055] 1. Diamond-shaped lifting frame; 11. Lifting rod; 12. First pin; 13. Second pin;

[0056] 2. Lifting cable;

[0057] 3. Radial cable connector; 31. Columnar base; 32. Upper lifting rod lug; 33. Radial cable lug;

[0058] 4. Ring cable connector; 41. Ring cable lug; 42. Lower top rod lifting lug; 43. Columnar base

[0059] 51. First strut; 52. Second strut;

[0060] A. Radial cable; B. Circular cable; C. Oblique cable. Detailed Implementation

[0061] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0062] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms “first,” “second,” and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms “an,” “a,” or “the,” and similar terms do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms “comprising,” “including,” or “including,” and similar terms mean that the element or object preceding the word encompasses the element or object listed following the word and its equivalents, without excluding other elements or objects. The terms “connected,” “linked,” or “connected,” and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0063] It should be noted that the terms "up", "down", "left", "right", "front", and "back" used in this invention are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0064] Faced with the construction requirements of prestressed spatial structures for ultra-large spans and long lifespans, the selection of lighter, higher-strength, and more durable building materials is imperative. Carbon fiber reinforced composites (CFRP) possess characteristics such as lightweight, high strength, good corrosion resistance, and minimal temperature influence, which can solve many of the significant problems associated with traditional steel cables. In recent years, they have been widely used in various fields and are a new material in civil engineering that can replace traditional steel cables in cable dome structures. However, CFRP cables are not easily bent, have weak transverse (perpendicular to fiber direction) mechanical properties, and most anchorage structures are not suitable for high-altitude tensioning. Therefore, bending and tensioning of CFRP cables should be avoided during the construction of CFRP cable domes. Thus, the jacking strut method is the most suitable method for forming CFRP cable domes. Therefore, it is urgent to develop a new all-CFRP cable dome structure system that is bending-free and does not rely on tensioning, specifically tailored to the structural form and stress characteristics of CFRP cable domes. The specific details are as follows:

[0065] like Figure 1 , Figure 2 , Figures 5 to 7 As shown, one embodiment of the present invention provides a CFRP cable dome with a lifting mechanism, comprising: radial cable A, ring cable B, inclined cable C, lifting assembly, ring cable connector 4, and radial cable connector 3. In this embodiment, the structural configuration of the cable dome formed by the integral connection of the radial cable, ring cable, and inclined cable is not limited. There are many configuration layouts in existing patents, such as a double-strut cable dome structure with publication number CN105952049A and a large-span prefabricated prestressed ridge ring-strut cable dome structural system with publication number CN111088867A. The relevant structures are based on existing ones.

[0066] In the prior art, struts are usually installed between radial cable A and inclined cable C. In this application, a lifting assembly is installed in the cable dome structure instead of struts.

[0067] The lifting assembly includes: a diamond-shaped lifting frame 1 and a lifting cable 2;

[0068] The rhomboid lifting frame 1 includes four lifting rods 11 of the same length, which are connected end to end by hinges. The two ends of the lifting cable 2 are respectively installed on the two apex corners of the rhomboid lifting frame 1, and the lifting cable 2 is horizontally arranged. The radial cable connecting seat 3 is installed on the top apex corner of the rhomboid lifting frame 1, and the radial cable connecting seat is used to connect the inclined cable and the radial cable. The ring cable connecting seat 4 is installed on the bottom apex corner of the rhomboid lifting frame 1, and the ring cable connecting seat 4 is used to connect the inclined cable and the ring cable.

[0069] In this embodiment, the structure of the rhomboid lifting frame 1 is as follows:

[0070] The rhomboid lifting frame 1 is a rhomboid frame formed by four lifting rods 11 connected end to end. The connection between every two lifting rods 11 is a pin connection. The pins at the top and bottom corners of the rhomboid lifting frame 1 are first pins 12, which are smooth round pins with extension sections at both ends. The pins at the two horizontal corners of the rhomboid lifting frame 1 are second pins 13, which are conventional pins. The length of the first pin 12 is longer than that of the second pin 13. The lifting cable 2 is installed inside the rhomboid lifting frame 1 and is horizontally installed at the two horizontal corners of the rhomboid lifting frame 1. The jack assembly is set vertically. The specific structure is as follows:

[0071] like Figure 5 As shown, a rhomboid lifting frame 1 includes four lifting rods 11 of the same length. The four lifting rods 11 are connected end to end by hinges. Each lifting rod 11 has two parallel mounting ears at both ends. The through holes on the mounting ears of two adjacent lifting rods 11 overlap and are fitted onto pins. The first pin 12 is fitted into the overlapping through holes at the top corners formed by the two upper lifting rods 11. The first pin 12 is fitted into the overlapping through holes at the bottom corners formed by the two lower lifting rods 11. The second pin 13 is fitted into the overlapping through holes at the two corners formed by the four lifting rods 11 in the horizontal direction.

[0072] There are two first pins 12, which are respectively installed on the two vertically arranged top corners of the rhomboid lifting frame 1. One end of the two lifting rods 11 at the top is respectively hinged to the first pin 12 at the top, and one end of the two lifting rods 11 at the bottom is respectively hinged to the first pin 12 at the bottom.

[0073] There are two second pins 13, which are respectively installed on the two horizontally arranged top corners of the rhomboid lifting frame 1. The other ends of the two top lifting rods 11 are respectively hinged to the other ends of the two bottom lifting rods 11 through the second pins 13 arranged on the same side. The length of the first pin 12 is longer than that of the second pin 13.

[0074] In this embodiment, the lifting cable 2 has the following structure: both ends of the lifting cable 2 are respectively installed on the two apex corners of the rhomboid lifting frame 1; the lifting cable 2 is horizontally positioned; and the lifting cable 2 is made of carbon fiber composite material, which fully utilizes the superior tensile strength of carbon fiber composite material. Connectors are provided at both ends of the lifting cable 2, and the lifting cable 2 is connected to the second pin 13 through the connectors. The connector is existing technology and can be a strip-shaped connecting plate.

[0075] In this embodiment, the specific structure of the radial cable connector 3 includes: a first cylindrical base 31, an upper lifting rod lug 32, and radial cable lugs 33; the first cylindrical base 31 is cylindrical; the upper lifting rod lug 32 is disposed on the lower bottom surface of the first cylindrical base 31, and the upper lifting rod lug 32 is provided with a through hole for the first pin 12, and the upper lifting rod lug 32 is mounted on the first pin 12 at the top of the rhomboid lifting frame 1; there are four radial cable lugs 33, which are arranged circumferentially on the side wall of the first cylindrical base 31, and the plate surface of the radial cable lugs 33 is spatially perpendicular to the upper surface of the first cylindrical base 31.

[0076] The first cylindrical base 31 is cylindrical; the upper lifting rod ear plate 32 is disposed on the lower bottom surface of the first cylindrical base 31, and the upper lifting rod ear plate 32 is provided with a through hole connected to the first pin 12. The upper lifting rod ear plate 32 is installed on the first pin 12 at the top of the rhomboid lifting frame 1; there are four radial cable ear plates 33, which are arranged circumferentially on the side wall of the first cylindrical base 31, and the plate surface of the radial cable ear plates 33 is spatially perpendicular to the upper surface of the first cylindrical base 31.

[0077] In this embodiment, the specific structure of the ring cable connecting seat 4 includes: a second cylindrical base 43, a ring cable lug plate 41, and a lower lifting rod lug plate 42; the lower lifting rod lug plate 42 is disposed on the upper bottom surface of the second cylindrical base 43, and a through hole for installing the first pin 12 is provided on the lower lifting rod lug plate 42, and the lower lifting rod lug plate 42 is installed on the first pin 12 at the bottom of the rhomboid lifting frame 1.

[0078] The second columnar base 43 is cylindrical. A lower lifting rod lug 42 is provided on the upper surface of the second columnar base 43, and a ring cable lug 41 is provided on the outer side wall of the second columnar base 43. The layout of the ring cable connecting lugs on the second columnar base 43 is set according to the actual ring cable layout. The layout here includes the number of ring cable connecting lugs and the distribution of the ring cable connecting lugs on the second columnar base 43. As shown in the figure, there are two ring cable connecting lugs, and the upper surfaces of the two ring cable connecting lugs are parallel to the upper surface of the second columnar base 43.

[0079] In this invention's novel cable dome system, the ring cables are discontinuous at corners, avoiding stress perpendicular to the fiber direction and overcoming the weakness of the transverse mechanical properties of carbon fiber composite cables. This structure, by replacing the struts with a proposed lifting mechanism, avoids tensioning the ring cables and inclined cables, thus allowing the application of anchorages that are inconvenient for tensioning to the carbon fiber cable dome. The lifting assembly's hinged rotation along the radial direction of the cable dome prevents additional bending moments and shear forces from being generated during the lifting process. This lifting assembly has a clearly defined jacking point, facilitating the design of lifting fixtures and the lifting operation. The lifting cable 2 designed in this lifting assembly fully utilizes the superior tensile properties of carbon fiber composites.

[0080] like Figures 3 to 7 As shown, another embodiment of the present invention provides a CFRP cable dome with an embedded strut in a lifting mechanism, comprising: radial cable A, ring cable B, inclined cable C, lifting assembly, first strut 51, second strut 52, ring cable connecting seat 4, and radial cable connecting seat 3. In this embodiment, the structural configuration of the cable dome formed by the integral connection of the radial cable, ring cable, and inclined cable is not limited. There are many configuration layouts in existing patents, such as a double strut cable dome structure with publication number CN105952049A and a large-span prefabricated prestressed ridge strut ring-supported cable dome structural system with publication number CN111088867A, etc. The relevant structures are based on existing ones.

[0081] In the prior art, a strut is usually installed between the radial cable A and the inclined cable C. In this application, the lifting component is embedded into the strut and installed in the cable dome structure. Therefore, what was originally a complete strut is now divided into a first strut 51 and a second strut 52, as shown in the following specific structure:

[0082] The lifting assembly includes: a diamond-shaped lifting frame 1 and a lifting cable 2;

[0083] The diamond-shaped lifting frame 1 includes four lifting rods 11 of the same length, and the four lifting rods 11 are connected end to end by hinges.

[0084] The two ends of the lifting cable 2 are respectively installed on the two apex corners of the rhomboid lifting frame 1, and the lifting cable 2 is set horizontally;

[0085] One end of the first support rod 51 is installed on the top corner of the diamond-shaped lifting frame 1, and the other end of the first support rod 51 is installed on the radial cable connector 3; the radial cable connector is used to connect the inclined cable and the radial cable.

[0086] One end of the second support rod 52 is installed on the bottom corner of the diamond-shaped lifting frame 1, and the other end of the second support rod 52 is installed on the ring cable connecting seat 4, which is used to connect the inclined cable and the ring cable.

[0087] The lifting assembly includes: a diamond-shaped lifting frame 1 and a lifting cable 2;

[0088] The rhomboid lifting frame 1 includes four lifting rods 11 of the same length, which are connected end to end by hinges. The two ends of the lifting cable 2 are respectively installed on the two apex corners of the rhomboid lifting frame 1, and the lifting cable 2 is horizontally arranged. The radial cable connecting seat 3 is installed on the top apex corner of the rhomboid lifting frame 1, and the radial cable connecting seat is used to connect the inclined cable and the radial cable. The ring cable connecting seat 4 is installed on the bottom apex corner of the rhomboid lifting frame 1, and the ring cable connecting seat 4 is used to connect the inclined cable and the ring cable.

[0089] In this embodiment, the structure of the rhomboid lifting frame 1 is as follows:

[0090] The rhomboid lifting frame 1 is a rhomboid frame formed by four lifting rods 11 connected end to end. The connection between every two lifting rods 11 is a pin connection. The pins at the top and bottom corners of the rhomboid lifting frame 1 are first pins 12, which are smooth round pins with extension sections at both ends. The pins at the two horizontal corners of the rhomboid lifting frame 1 are second pins 13, which are conventional pins. The length of the first pin 12 is longer than that of the second pin 13. The lifting cable 2 is installed inside the rhomboid lifting frame 1 and is horizontally installed at the two horizontal corners of the rhomboid lifting frame 1. The jack assembly is set vertically. The specific structure is as follows:

[0091] like Figure 5As shown, a rhomboid lifting frame 1 includes four lifting rods 11 of the same length. The four lifting rods 11 are connected end to end by hinges. Each lifting rod 11 has two parallel mounting ears at both ends. The through holes on the mounting ears of two adjacent lifting rods 11 overlap and are fitted onto pins. The first pin 12 is fitted into the overlapping through holes at the top corners formed by the two upper lifting rods 11. The first pin 12 is fitted into the overlapping through holes at the bottom corners formed by the two lower lifting rods 11. The second pin 13 is fitted into the overlapping through holes at the two corners formed by the four lifting rods 11 in the horizontal direction.

[0092] There are two first pins 12, which are respectively installed on the two vertically arranged top corners of the rhomboid lifting frame 1. One end of the two lifting rods 11 at the top is respectively hinged to the first pin 12 at the top, and one end of the two lifting rods 11 at the bottom is respectively hinged to the first pin 12 at the bottom.

[0093] There are two second pins 13, which are respectively installed on the two horizontally arranged top corners of the rhomboid lifting frame 1. The other ends of the two top lifting rods 11 are respectively hinged to the other ends of the two bottom lifting rods 11 through the second pins 13 arranged on the same side. The length of the first pin 12 is longer than that of the second pin 13.

[0094] In this embodiment, the lifting cable 2 has the following structure: both ends of the lifting cable 2 are respectively installed on the two apex corners of the rhomboid lifting frame 1; the lifting cable 2 is horizontally positioned; and the lifting cable 2 is made of carbon fiber composite material, which fully utilizes the superior tensile strength of carbon fiber composite material. Connectors are provided at both ends of the lifting cable 2, and the lifting cable 2 is connected to the second pin 13 through the connectors. The connector is existing technology and can be a strip-shaped connecting plate.

[0095] In this embodiment, the specific structure of the radial cable connector 3 includes: a first cylindrical base 31, an upper lifting rod lug 32, and radial cable lugs 33; the first cylindrical base 31 is cylindrical; the upper lifting rod lug 32 is disposed on the lower bottom surface of the first cylindrical base 31, and the upper lifting rod lug 32 is provided with a through hole for the first pin 12, and the upper lifting rod lug 32 is mounted on the first pin 12 at the top of the rhomboid lifting frame 1; there are four radial cable lugs 33, which are arranged circumferentially on the side wall of the first cylindrical base 31, and the plate surface of the radial cable lugs 33 is spatially perpendicular to the upper surface of the first cylindrical base 31.

[0096] The first cylindrical base 31 is cylindrical; the upper lifting rod ear plate 32 is disposed on the lower bottom surface of the first cylindrical base 31, and the upper lifting rod ear plate 32 is provided with a through hole connected to the first pin 12. The upper lifting rod ear plate 32 is installed on the first pin 12 at the top of the rhomboid lifting frame 1; there are four radial cable ear plates 33, which are arranged circumferentially on the side wall of the first cylindrical base 31, and the plate surface of the radial cable ear plates 33 is spatially perpendicular to the upper surface of the first cylindrical base 31.

[0097] In this embodiment, the specific structure of the ring cable connecting seat 4 includes: a second cylindrical base 43, a ring cable lug plate 41, and a lower lifting rod lug plate 42; the lower lifting rod lug plate 42 is disposed on the upper bottom surface of the second cylindrical base 43, and a through hole for installing the first pin 12 is provided on the lower lifting rod lug plate 42, and the lower lifting rod lug plate 42 is installed on the first pin 12 at the bottom of the rhomboid lifting frame 1.

[0098] The second columnar base 43 is cylindrical. A lower lifting rod lug 42 is provided on the upper surface of the second columnar base 43. A ring cable lug 41 is provided on the outer side wall of the second columnar base 43. The layout of the ring cable connecting lugs on the second columnar base 43 is set according to the actual ring cable layout. The layout here includes the number of ring cable connecting lugs and the distribution of the ring cable connecting lugs on the second columnar base 43. As shown in the figure, there are two ring cable connecting lugs. The upper surfaces of the two ring cable connecting lugs are parallel to the upper surface of the second columnar base 43.

[0099] In this embodiment of the invention, the ring cables in the new cable dome system are discontinuous at the corners, avoiding stress perpendicular to the fiber direction and overcoming the weakness of the transverse mechanical properties of carbon fiber composite cables. This structure avoids tensioning the ring cables and inclined cables by embedding the proposed lifting mechanism into the struts, thus allowing the application of anchorages that are inconvenient for tensioning to the carbon fiber cable dome. The radial cable connector and ring cable connector are hinged and rotated along the radial direction of the cable dome at their connection with the struts, preventing the lifting mechanism from generating additional bending moments and shear forces during the lifting process. This lifting assembly has a clear jacking point, facilitating the design of lifting fixtures and the lifting operation. The lifting cable 2 designed in this lifting assembly fully utilizes the superior tensile properties of carbon fiber composites.

[0100] In the two embodiments described above, when the lifting assembly is positioned in the middle of the strut, the strut is divided into a first strut 51 and a second strut 52. The first strut 51 is hinged to the radial cable connector 3 along the radial direction of the cable dome, and the second strut 52 is hinged to the annular cable connector 4 along the radial direction of the cable dome. The lifting mechanism 4 is hinged to the two struts along the circumferential direction of the cable dome, meaning the hinge rotation directions at both ends of the two struts are perpendicular to each other. When the lifting assembly replaces the strut, the top and bottom ends of the lifting assembly are hinged to the radial cable connector 3 and the annular cable connector 4 respectively along the radial direction of the cable dome.

[0101] In the two embodiments described above, the purpose of the layout that "there are two ring cable connecting lugs, and the upper surfaces of the two ring cable connecting lugs are arranged parallel to the upper surface of the second columnar base 43" is that during the lifting and forming process, the additional deformation of the ring cable due to stress gradually increases, ensuring that no additional bending moment and shear force are generated at the connection between the ring cable and the ring cable connecting seat 4.

[0102] In the two embodiments described above, the connector in which the lifting cable is connected to the second pin 13 via a connector can be oblong, with a connecting hole for the lifting rod 11 on one side and a connecting hole for the lifting cable 2 on the other side.

[0103] The following points need to be explained:

[0104] (1) The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention. Other structures can refer to the general design.

[0105] (2) For clarity, the thickness of layers or regions is enlarged or reduced in the drawings used to describe embodiments of the present invention; that is, these drawings are not drawn to actual scale. It is understood that when an element such as a layer, film, region, or substrate is referred to as being “above” or “below” another element, the element may be “directly” located “above” or “below” the other element, or there may be intermediate elements.

[0106] (3) Where there is no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0107] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A jacking mechanism replacement strut CFRP cable dome, characterized in that, Comprise: Radial cable, ring cable, diagonal cable, jacking assembly, ring cable connecting seat and radial cable connecting seat; Wherein, the jacking assembly comprises: a rhombus jacking frame and a jacking cable; The rhombus jacking frame comprises four jacking rods with the same length, and the four jacking rods are sequentially connected in a head-to-tail manner; Both ends of the jacking cable are respectively installed on two top corners of the rhombus jacking frame, and the jacking cable is horizontally arranged; The radial cable connecting seat is installed on the top corner of the rhombus jacking frame, and the radial cable connecting seat is used for connecting the diagonal cable and the radial cable; The ring cable connecting seat is installed on the bottom corner of the rhombus jacking frame, and the ring cable connecting seat is used for connecting the diagonal cable and the ring cable.

2. The jacking mechanism replacement strut CFRP cable dome according to claim 1, characterized in that, The rhombus jacking frame further comprises: a first pin shaft and a second pin shaft; The number of the first pin shaft is two, and the two first pin shafts are respectively installed on two vertically arranged top corners of the rhombus jacking frame, one end of the two top jacking rods is respectively hingedly installed on the first pin shaft arranged at the top, and one end of the two bottom jacking rods is respectively hingedly installed on the first pin shaft arranged at the bottom; The number of the second pin shaft is two, and the two second pin shafts are respectively installed on two horizontally arranged top corners of the rhombus jacking frame, the other end of the two top jacking rods is hingedly connected with the other end of the two bottom jacking rods through the second pin shaft arranged on the same side; Wherein, the length of the first pin shaft is longer than that of the second pin shaft.

3. The jacking mechanism replacement strut CFRP cable dome according to claim 2, characterized in that, The radial cable connecting seat comprises: a first cylindrical base, an upper jacking rod ear plate and a radial cable ear plate; The first cylindrical base is arranged in a cylindrical shape; The upper jacking rod ear plate is arranged on the lower bottom surface of the first cylindrical base, the first pin shaft through hole is arranged on the upper jacking rod ear plate, and the upper jacking rod ear plate is installed on the first pin shaft at the top of the rhombus jacking frame; The number of the radial cable ear plate is four, the radial cable ear plate is arranged in a ring around the side wall of the first cylindrical base, and the plate surface of the radial cable ear plate is arranged in a spatial vertical manner with the upper surface of the first cylindrical base.

4. The jacking mechanism replacement strut CFRP cable dome according to claim 3, characterized in that, The ring cable connecting seat comprises: a second cylindrical base, a ring cable ear plate and a lower jacking rod ear plate; The lower jacking rod ear plate is arranged on the upper bottom surface of the second cylindrical base, The lower jacking rod ear plate is provided with a through hole for installing the first pin shaft, and the lower jacking rod ear plate is installed on the first pin shaft at the bottom of the rhombus jacking frame.

5. The jacking assembly of claim 4, wherein, The material of the jacking cable is carbon fiber composite material.

6. A jacking mechanism inlaid strut-pole CFRP cable dome, characterized in that, Comprise: Radial cable, ring cable, diagonal cable, jacking assembly, first support rod, second support rod, ring cable connecting seat and radial cable connecting seat; Wherein, the jacking assembly comprises: a rhombus jacking frame and a jacking cable; The rhombus jacking frame comprises four jacking rods with the same length, and the four jacking rods are sequentially connected in a head-to-tail manner; Both ends of the jacking cable are respectively installed on two top corners of the rhombus jacking frame, and the jacking cable is horizontally arranged; One end of the first support rod is installed on the top corner of the rhombus jacking frame, and the other end of the first support rod is installed on the radial cable connecting seat; the radial cable connecting seat is used for connecting the diagonal cable and the radial cable; One end of the second support rod is installed on the bottom top corner of the diamond-shaped jacking frame, and the other end of the second support rod is installed on the loop cable connecting seat for connecting the diagonal cable and the loop cable.

7. The jacking mechanism embedded strut-jack CFRP cable dome according to claim 6, wherein, The diamond-shaped jacking frame further comprises a first pin shaft and a second pin shaft. The number of the first pin shafts is two, and the two first pin shafts are respectively installed on two vertically arranged top corners of the diamond-shaped jacking frame. One end of each of the two top jacking rods at the top is hingedly installed on the first pin shaft arranged at the top, and one end of each of the two top jacking rods at the bottom is hingedly installed on the first pin shaft arranged at the bottom. The number of the second pin shafts is two, and the two second pin shafts are respectively installed on two horizontally arranged top corners of the diamond-shaped jacking frame.

8. The jacking mechanism embedded strut-jack CFRP cable dome according to claim 7, wherein, The other end of each of the two top jacking rods at the top is hingedly connected with the other end of each of the two top jacking rods at the bottom through the second pin shaft arranged on the same side. The length of the first pin shaft is longer than that of the second pin shaft. The material of the jacking cable is carbon fiber composite material.

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