A lifting assembly for a full CFRP cable dome

By combining a diamond-shaped lifting frame and jack components, the bending and tensioning problems in the forming of CFRP cable domes were solved, achieving efficient forming of CFRP cable domes, which are suitable for prestressed spatial structures with ultra-large spans and long lifespans.

CN117211414BActive Publication Date: 2026-01-30UNIV OF SCI & TECH BEIJING
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Patent Information

Application Number
CN202311102084.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-08-30
Publication Date
2026-01-30
Estimated Expiration
2043-08-30

AI Technical Summary

Technical Problem

The difficulty in bending CFRP cables, their weak lateral mechanical properties, and the fact that most anchorage structures are not suitable for high-altitude tensioning make the construction of CFRP cable domes challenging.

Method used

The CFRP cable dome is lifted by using a diamond-shaped lifting frame, lifting cables, radial cable connectors, ring cable connectors, and jack assemblies. The horizontal and vertical movement of the diamond-shaped lifting frame achieves the lifting of the CFRP cable dome, avoiding bending and tension, and utilizing the tensile strength of carbon fiber composite materials.

Benefits of technology

It achieves efficient forming of CFRP cable domes, avoiding bending and tensioning of CFRP cables, and is suitable for prestressed spatial structures with ultra-large spans and long lifespans.

✦ Generated by Eureka AI based on patent content.

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Abstract

In the field of carbon fiber composite cables used in space structures, this invention provides a lifting assembly for a full CFRP cable dome, comprising: a rhomboid lifting frame, lifting cables, radial cable connectors, ring cable connectors, and a jack assembly. The rhomboid lifting frame includes four lifting rods of equal length, which are connected end-to-end in a rotatable manner. The two ends of the lifting cable are respectively installed at the two apex corners of the rhomboid lifting frame, and the lifting cable is horizontally positioned. The radial cable connectors are installed at the top apex corner of the rhomboid lifting frame. The ring cable connectors are installed at the bottom apex corner of the rhomboid lifting frame. The two ends of the jack assembly are respectively installed at the two apex corners of the rhomboid lifting frame, and the jack assembly is vertically positioned. When the jack assembly drives the radial cable connectors and the ring cable connectors to move vertically, the two opposite vertices of the rhomboid lifting frame move horizontally. This assembly replaces the struts, avoiding tension on the ring cables and diagonal cables, and can be applied to CFRP cable domes.
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Description

Technical Field

[0001] This invention relates to the application of carbon fiber composite cables in space structures, and more particularly to a lifting assembly for a full CFRP cable dome. 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 strut lifting method suitable for CFRP cable domes, taking into account their structural form and stress characteristics. Therefore, this invention provides a lifting assembly for a full CFRP cable dome, specifically comprising:

[0004] A lifting assembly for a full CFRP cable dome includes:

[0005] A diamond-shaped lifting frame, comprising four lifting rods of the same length, the four lifting rods being rotatably connected end to end;

[0006] A lifting cable, the two ends of which are respectively installed on the two apex corners of the diamond-shaped lifting frame, and the lifting cable is set horizontally;

[0007] A radial cable connector is mounted on the top corner of the diamond-shaped lifting frame;

[0008] A ring cable connector is installed at the bottom apex of the diamond-shaped lifting frame;

[0009] A jack assembly, wherein the two ends of the jack assembly are respectively installed on the two apex corners of the diamond-shaped lifting frame, and the jack assembly is vertically arranged;

[0010] When the jack assembly drives the radial cable connector and the ring cable connector to move vertically, the two diagonal vertices of the rhomboid lifting frame move horizontally.

[0011] Preferably, the rhomboid lifting frame further includes: a first pin and a second pin;

[0012] There are two first pins, which are respectively installed on the two vertically set top corners of the diamond-shaped lifting frame. One end of the two lifting rods at the top is rotatably installed on the first pins at the top, and one end of the two lifting rods at the bottom is rotatably installed on the first pins at the bottom.

[0013] There are two second pins, which are respectively installed on the two horizontally arranged top corners of the diamond-shaped lifting frame. The other ends of the two top lifting rods are respectively rotatably connected to the other ends of the two bottom lifting rods through the second pins arranged on the same side.

[0014] The length of the first pin is longer than that of the second pin.

[0015] Preferably, the radial cable connector includes: a first cylindrical base, an upper lifting rod lug, and a radial cable lug;

[0016] The first cylindrical base is cylindrical in shape;

[0017] The upper lifting rod ear plate is disposed on the lower bottom surface of the first columnar base, and the upper lifting rod ear plate is provided with a through hole for installing the first pin. The upper lifting rod ear plate is installed on the first pin at the top of the rhomboid lifting frame.

[0018] 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.

[0019] Preferably, the ring cable connector includes: a second cylindrical base, a ring cable lug plate, and a lower lifting rod lug plate;

[0020] The lower lifting rod lug plate is disposed on the upper top surface of the second columnar base, and the plate surface of the ring cable lug plate is spatially parallel to the upper surface of the columnar base;

[0021] 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.

[0022] Preferably, the jack assembly includes: a lifting column, a transfer beam, and a hydraulic jack;

[0023] The number of the transfer beams is two, one of which is located between the top corner of the lifting cable and the top corner of the diamond-shaped lifting frame, and the other of which is located between the bottom corner of the lifting cable and the bottom corner of the diamond-shaped lifting frame.

[0024] The number of hydraulic jacks is two. The telescopic ends of the two hydraulic jacks are set on the upper surface of the conversion beam below the lifting cable. The oil pump ends of the two hydraulic jacks are connected to the lower surface of the conversion beam above the lifting cable. The two hydraulic jacks are respectively set on both sides of the lifting cable.

[0025] The number of lifting columns is four. Two of the lifting columns located above the lifting cable have one end installed on the upper surface of the conversion beam, and the other end of the two lifting columns located above the lifting cable are installed on the first pin at the top of the diamond-shaped lifting frame. Two of the lifting columns located below the lifting cable have one end installed on the lower surface of the conversion beam, and the other end of the two lifting columns located below the lifting cable are installed on the first pin at the bottom of the diamond-shaped lifting frame.

[0026] Preferably, a U-shaped groove is provided on the lifting column at one end away from the conversion beam, and the U-shaped groove is engaged with the sleeve;

[0027] The sleeve includes a cylindrical body and two annular ribs. The two annular ribs are coaxially arranged with the cylindrical body. The gap between the two annular ribs is used to install the U-shaped groove. A connection port is provided at one end of the cylindrical body. The first pin is inserted into the connection port. The cylindrical body and the first pin are coaxially arranged.

[0028] Preferably, the hydraulic jack is fixed to the upper and lower conversion beams respectively by bolts.

[0029] Preferably, the hinge rotation direction at the radial lug plate is the vertical direction;

[0030] The hinge rotation direction at the ring cable lug plate is horizontal.

[0031] The hinge rotation direction at the upper and lower lifting rod lugs is vertical.

[0032] Preferably, the cables connected to the radial cable connector and the ring cable connector are CFRP cables.

[0033] Preferably, the lifting cable is made of carbon fiber composite material.

[0034] The above technical solution has at least the following advantages compared with the existing technology:

[0035] By replacing the struts with the lifting mechanism in this lifting system, tensioning of the ring cables and inclined cables is avoided, thus allowing the application of anchorage types that are inconvenient to tension to CFRP cable domes.

[0036] The lifting rod is hinged to the radial cable connector and the ring cable connector in the radial direction of the cable dome, which avoids the generation of additional bending moment and shear force during the lifting process.

[0037] The thermoplastic resin filaments and fibers in this invention can be selected from a variety of resin types and fiber types for sample preparation, and the material system has strong versatility.

[0038] By setting extension sections at both ends of the two-end smooth circular pins, a leverage point is cleverly provided for the jack assembly; the lifting cable in the lifting assembly makes full use of the superior tensile properties of carbon fiber composite. Attached Figure Description

[0039] 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.

[0040] Figure 1 An isometric view of the component provided by this invention;

[0041] Figure 2 Side view of the component provided by the present invention:

[0042] Figure 3 A schematic diagram of the rhomboid lifting frame provided by the present invention;

[0043] Figure 4 This is a schematic diagram of the structure of the jack assembly provided by the present invention;

[0044] Figure 5 A schematic diagram of the structure of the radial cable connector provided by the present invention;

[0045] Figure 6 This is a schematic diagram of the structure of the ring cable connector provided by the present invention;

[0046] Figure 7This is a schematic diagram of the lifting column provided by the present invention;

[0047] Figure 8 This is a schematic diagram of the U-shaped groove provided by the present invention.

[0048] Figure label:

[0049] 1. Diamond-shaped lifting frame; 11. Lifting rod; 12. First pin; 13. Second pin;

[0050] 2. Lifting cable;

[0051] 3. Radial cable connector; 31. First columnar base; 32. Upper lifting rod lug; 33. Radial cable lug;

[0052] 4. Ring cable connector; 41. Ring cable lug plate; 42. Lower top rod lifting lug plate; 43. Second column base;

[0053] 5. Jack assembly; 51. Hydraulic jack; 52. Lifting column; 521. U-shaped channel; 53. Transfer beam; 54. Sleeve; 541. Annular rib; 542. Cylinder body. Detailed Implementation

[0054] 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.

[0055] 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.

[0056] 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.

[0057] 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 (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 cable dome construction. Thus, the jacking strut method is the most suitable method for forming CFRP cable domes. Therefore, it is urgent to develop a jacking component for all-CFRP cable domes, specifically tailored to the structural form and stress characteristics of CFRP cable domes. The details are as follows:

[0058] like Figures 1-2 As shown, a lifting assembly for a full CFRP cable dome includes: a diamond-shaped lifting frame 1, lifting cables 2, radial cable connectors 3, ring cable connectors 4, and jack assembly 5.

[0059] The rhomboid lifting frame 1 is formed by connecting four lifting rods 11 end to end. The connection between any 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 horizontally at the two horizontal corners of the rhomboid lifting frame 1. The jack assembly 5 is vertically installed. The specific structure is as follows:

[0060] like Figure 3 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.

[0061] 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.

[0062] There are two second pins 13. The two second pins 13 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.

[0063] The length of the first pin 12 is longer than that of the second pin 13.

[0064] like Figure 1 As shown, the lifting cable 2 has its two ends installed at the two apex corners of the rhomboid lifting frame 1. The lifting cable 2 is horizontally positioned and is made of carbon fiber composite material, fully utilizing the superior tensile strength of the carbon fiber composite. 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.

[0065] like Figure 5 As shown, the radial cable connecting seat 3 is installed on the top corner of the rhomboid lifting frame 1; the radial cable connecting seat 3 includes: a first columnar base 31, an upper lifting rod ear plate 32 and a radial cable ear plate 33.

[0066] 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.

[0067] like Figure 6As shown, a cable connection seat 4 is installed on the bottom apex of the rhomboid lifting frame 1. The cable connection seat 4 includes: a cable lug plate 41, a lower lifting rod lug plate 42, and a second columnar base 43. The lower lifting rod lug plate 42 is provided on the upper top surface of the second columnar base 43. The lower lifting rod lug plate 42 is provided with a through hole for connecting to the first pin 12. The lower lifting rod lug plate 42 is installed on the first pin 12 at the bottom of the rhomboid lifting frame 1. The side wall of the second columnar base 43 is provided with a cable lug plate 41. The arrangement of the cable lug plate 41 is based on the actual cable dome structure. The cable lug plate 41 of the cable connection seat 4 is provided with a through hole for installing the cable. As shown in the figure, there are two cable connection lug plates. The upper surfaces of the two cable connection lug plates are parallel to the upper surface of the second columnar base.

[0068] like Figure 1 , Figure 4 , Figure 7 and Figure 8 As shown, the jack assembly 5 has its two ends installed on the two apex corners of the rhomboid lifting frame 1, and the jack assembly 5 is vertically arranged.

[0069] When the jack assembly 5 drives the radial cable connector 3 and the ring cable connector 4 to move vertically, the rhomboid lifting frame 1 moves horizontally at its two opposite vertices.

[0070] The jack assembly 5 includes: a hydraulic jack 51, a lifting column 52, and a transfer beam 53;

[0071] The number of the conversion beams 53 is two. One conversion beam 53 is located between the top corner of the lifting cable 2 and the top corner of the rhomboid lifting frame 1, and the other conversion beam 53 is located between the bottom corner of the lifting cable 2 and the bottom corner of the rhomboid lifting frame 1.

[0072] The number of hydraulic jacks 51 is two. The telescopic ends of the two hydraulic jacks 51 are set on the upper surface of the conversion beam 53 below the lifting cable 2. The oil pump ends of the two hydraulic jacks 51 are connected to the lower surface of the conversion beam 53 above the lifting cable 2. The two hydraulic jacks 51 are respectively set on both sides of the lifting cable 2.

[0073] The number of lifting columns 52 is four. Two of the lifting columns 52 located above the lifting cable 2 have one end installed on the upper surface of the conversion beam 53, and the other end of the two lifting columns 52 located above the lifting cable 2 are installed on the first pin 12 at the top of the rhomboid lifting frame 1. Two of the lifting columns 52 located below the lifting cable 2 have one end installed on the lower surface of the conversion beam 53, and the other end of the two lifting columns 52 located below the lifting cable 2 are installed on the first pin 12 at the bottom of the rhomboid lifting frame 1.

[0074] A U-shaped groove 521 is provided on the lifting column 52 at one end away from the conversion beam 53. The U-shaped groove 521 is engaged with the sleeve 54. The sleeve 54 includes a cylindrical body 542 and two annular ribs 541. The two annular ribs 541 are coaxially arranged with the cylindrical body 542. The gap between the two annular ribs 541 is used to install the U-shaped groove 521. A connection port is provided at one end of the cylindrical body 542, and the first pin 12 is inserted into the connection port. The shaft is coaxial with the first pin 12. The hydraulic jack 51 is fixed to the upper and lower conversion beams 53 respectively by bolts.

[0075] like Figures 1 to 8As shown, the embodiments of the present invention aim to solve the problem of how to achieve efficient application of the strut lifting method in a full CFRP cable dome, that is, to overcome the shortcomings of the weak lateral mechanical properties of CFRP cables and the fact that most anchor structures are not suitable for high-altitude tensioning, and to avoid bending and tensioning the CFRP cables. In the new cable dome system to which this lifting component is applicable, all prestressed cables are CFRP cables, and the ring cables are intermittently connected at the corners. In this lifting component, four lifting rods 11 of equal length are connected end to end to form a rhombus. The connection point of every two lifting rods 11 can be regarded as a node. There are a total of four nodes in a rhombus. The nodes at the two vertices in the vertical direction are considered to be two nodes in the vertical direction, and the vertices at the two vertices in the horizontal direction are considered to be two nodes in the horizontal direction. The two nodes in the horizontal direction can move horizontally, and the other two nodes in the vertical direction can move vertically. The two ends of the lifting cable 2 are connected to two horizontally movable nodes. Both ends of the round pin shaft have extension sections on the outside of the perforated pins that mate with the connecting sleeve 54. The surface of the connecting sleeve 54 is machined with two annular ribs 541 that mate with the lifting column 52. One end of the lifting column 52 is connected to the connecting sleeve 54 via a U-shaped groove 521, and the other end is connected to the conversion beam 53 via bolts. Jacks are arranged between the two conversion beams 53, and both ends are connected to the conversion beams 53 via bolts. By lifting with jacks, the distance between the two vertically movable nodes in the rhomboid lifting frame 1 increases, and the distance between the two horizontally movable nodes decreases. When the distance is shortened to a predetermined value, the two ends of the lifting cable 2 are connected to the two horizontally movable nodes respectively, and the lifting is completed.

[0076] In a preferred embodiment, the hinge rotation direction at the radial lug plate is vertical;

[0077] The hinge rotation direction at the ring cable lug is horizontal; the hinge rotation direction at the upper and lower lifting rod lugs is vertical. The cables connected to the radial cable connector 3 and the ring cable connector 4 are CFRP cables. The lifting cable 2 is made of carbon fiber composite material.

[0078] By replacing the struts with the lifting mechanism in this lifting system, tensioning of the ring cables and inclined cables is avoided, thus allowing the application of anchorage types that are inconvenient to tension to CFRP cable domes.

[0079] The lifting rod 11 is hinged to the radial cable connector 3 and the ring cable connector 4 in the radial direction of the cable dome, which avoids the generation of additional bending moment and shear force during the lifting process.

[0080] By setting extension sections at both ends of the two-end smooth circular pin shafts, a leverage point is cleverly provided for the jack assembly; the lifting cable 2 in the lifting assembly makes full use of the superior tensile properties of carbon fiber composite.

[0081] The following points need to be explained:

[0082] (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.

[0083] (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.

[0084] (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.

[0085] 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 assembly for a full CFRP cable dome, characterized in that, The utility model relates to a kind of jacking frame, including: A rhombic jacking frame includes four jacking rods of equal length, four The jacking rod is connected in turn rotationally at the tail end; Jack-up cable, both ends of the jacking cable are installed on the two top corners of the rhombic jacking frame, and the jacking cable is horizontally arranged; Radial cable connection seat, the radial cable connection seat is installed on the top corner of the rhombic jacking frame; Ring cable connection seat, the ring cable connection seat is installed on the bottom corner of the rhombic jacking frame; Jack assembly, both ends of the jack assembly are installed on the two top corners of the rhombic jacking frame, and the jack assembly is vertically arranged; Wherein, when the jack assembly drives the radial cable connection seat and the ring cable connection seat vertically moves, the rhombic jacking frame moves in horizontal direction along the two opposite corners of the top point in horizontal direction.

2. The jacking assembly of a full CFRP cable dome according to claim 1, characterized in that, The rhombic jacking frame also includes: a first pin shaft and a second pin shaft; The number of the first pin shaft is two, two The first pin shaft is installed on the two vertically arranged top corners of the rhombic jacking frame, one end of the two top jacking rods at the top is rotatably installed on the first pin shaft arranged at the top, and one end of the two bottom jacking rods is rotatably installed on the first pin shaft arranged at the bottom; The number of the second pin shaft is two, two The second pin shaft is installed on the two horizontally arranged top corners of the rhombic jacking frame, the other end of the two top jacking rods is rotatably 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 assembly of a full CFRP cable dome according to claim 2, characterized in that, The radial cable connection seat includes: 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 rhombic jacking frame; The number of the radial cable ear plate is four, the radial cable ear plate is arranged on the side wall of the first cylindrical base, and the plate surface of the radial cable ear plate is arranged vertically with the upper surface of the first cylindrical base.

4. The jacking assembly of a full CFRP cable dome according to claim 3, characterized in that, The ring cable connection seat includes: 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 rhombic jacking frame.

5. The jacking assembly of a full CFRP cable dome according to claim 4, characterized in that, The jack assembly includes: a jacking column, a conversion beam and a hydraulic jack; The number of the conversion beam is two, one The conversion beam is arranged between the jacking cable and the top corner of the rhombic jacking frame, and the other The conversion beam is arranged between the jacking cable and the bottom corner of the rhombic jacking frame; The number of the hydraulic jacks is two, the telescopic ends of the two hydraulic jacks are arranged on the upper surface of the conversion beam below the jacking cables, the oil pump ends of the two hydraulic jacks are connected with the lower surface of the conversion beam above the jacking cables, and the two hydraulic jacks are arranged on the two sides of the jacking cables respectively. The number of the jacking columns is four, one end of the two jacking columns arranged above the jacking cables is mounted on the upper surface of the conversion beam on the same side, the other end of the two jacking columns arranged above the jacking cables is mounted on the first pin shaft at the top of the diamond-shaped jacking frame, one end of the two jacking columns arranged below the jacking cables is mounted on the lower surface of the conversion beam on the same side, and the other end of the two jacking columns arranged below the jacking cables is mounted on the first pin shaft at the bottom of the diamond-shaped jacking frame.

6. The jacking assembly of a full CFRP cable dome according to claim 5, wherein, A U-shaped groove is arranged on one end of the jacking column away from the conversion beam, and the U-shaped groove is clamped on a sleeve. The sleeve comprises a barrel and two annular ribs, the two annular ribs are coaxially arranged with the barrel, the gap between the two annular ribs is used for mounting the U-shaped groove, one end of the barrel is provided with a connecting port, and the first pin shaft is inserted into the connecting port, wherein the barrel is coaxially arranged with the first pin shaft.

7. The jacking assembly of a full CFRP cable dome according to claim 5, wherein, The hydraulic jacks are respectively fixed by bolts on the upper conversion beam and the lower conversion beam.

8. The jacking assembly of a full CFRP cable dome according to claim 4, characterized in that, The hinge rotation direction at the radial cable ear plate is a vertical direction. The hinge rotation direction at the ring cable ear plate is a horizontal direction. The hinge rotation direction at the upper and lower jacking rod ear plates is a vertical direction.

9. The jacking assembly of a full CFRP cable dome according to claim 1, wherein, The cable installed on the radial cable connecting seat and the ring cable connecting seat is a CFRP cable.

10. The jacking assembly of a full CFRP cable dome according to claim 3, wherein, The material of the jacking cable is carbon fiber composite material. The first pin shaft is a smooth round at both ends and is provided with an extension section outside the open pin hole on both sides.

Citation Information

Patent Citations

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