A sling structure based on juxtaposed double main cables and a suspension bridge

Abstract

A sling structure and a suspension bridge based on juxtaposed double main cables, which relate to the field of bridge design and include: a clamp cross brace. The number of main cable clamps is two, and each main cable clamp is used to be fixed to the main cable. The two main cable clamps are respectively arranged at both ends of the clamp cross brace, and each main cable clamp is hinged to the end of the clamp cross brace to form a hinge point, and the main cable clamp rotates up and down around the adjacent hinge point. The number of slings is two, and the two slings are respectively wound around the two main cable clamps, and both ends of each sling are fixedly connected through a balance plate. In each embodiment of the present application, each main cable clamp can rotate up and down around the adjacent hinge point. When the length of the sling does not match the height of the corresponding main cable, the main cable clamp can rotate downward around the end of the clamp cross brace to adapt the height of the main cable to the length of the sling, ensuring that the two juxtaposed main cables and the slings are evenly stressed and the acting force on the bridge deck is balanced, thereby avoiding the problem of torsional stress on the bridge deck.

Description

Technical Field

[0001] The present application relates to the field of bridge design, and particularly to a sling structure and a suspension bridge based on juxtaposed double main cables. Background Art

[0002] With the increase in the span and dead load of suspension bridges, the diameter of the main cable continues to increase, which in turn leads to an excessive number of cable strands in the main cable, a long construction period, high construction difficulty, and the need to develop large-scale cable compacting machines and wire wrapping machines to match. In view of the above considerations, a four-cable suspension bridge with juxtaposed double main cables is often selected to replace the suspension bridge with an ultra-large cable diameter double main cable. The main cables in the four-cable suspension bridge with juxtaposed double main cables are connected to the bridge deck through slings. Due to the dimensional error between the main cable and the sling connected thereto, the acting forces between the main cable and the sling connected thereto are different in magnitude. Therefore, the main cable and the sling are unevenly stressed, resulting in torsional stress on the bridge deck. Summary of the Invention

[0003] The embodiments of the present application provide a sling structure and a suspension bridge based on juxtaposed double main cables to solve the problem that there is a dimensional error between the main cable and the sling connected thereto, and the uneven stress between the main cable and the sling results in torsional stress on the bridge deck.

[0004] A sling structure based on juxtaposed double main cables includes:

[0005] A clamp cross brace;

[0006] Two main cable clamps, each of which is used to fix to the main cable. The two main cable clamps are respectively arranged at both ends of the clamp cross brace, and each main cable clamp is hinged to the end of the clamp cross brace to form a hinge point, and the main cable clamp rotates up and down around the adjacent hinge point;

[0007] Two slings, the two slings are respectively wound around the two main cable clamps, and both ends of each sling are fixedly connected through a balance plate.

[0008] Further, each sling has a pair of ends. The two pairs of ends of the two slings are inclined at a certain angle in the direction of approaching each other, and both pairs of ends are connected to the balance plate, and the balance plate is used to connect to the bridge deck.

[0009] Further, vertical ear plates are respectively arranged on one side of the two main cable clamps close to each other. The clamp cross brace includes a connecting portion and plug-in portions located at opposite ends of the connecting portion. The two plug-in portions are respectively connected to the two ear plates through a pin shaft, and the pin shaft is horizontally arranged.

[0010] Further, each of the main cable clamps includes a sleeve for sleeving outside the main cable. The sleeve is formed by butting two semi-circular sleeves, and a butting seam is left at the butting position. A filler for sealing is arranged in the butting seam.

[0011] Further, each of the main cable clamps further includes pressure-bearing blocks. The pressure-bearing blocks are arranged in pairs, and each pair of pressure-bearing blocks is mirror-symmetrically arranged at both ends of the butting seam. The two semi-circular sleeves are detachably connected by two pairs of pressure-bearing blocks.

[0012] Further, each of the pressure-bearing blocks includes a fixing plate and a plurality of convex blocks. The fixing plate and the plurality of convex blocks form a toothed structure. The fixing plate is fixedly connected to the outer wall of the sleeve. A part of each convex block is fixedly connected to the fixing plate, and a part is fixedly connected to the outer wall of the sleeve. The convex blocks of the two pressure-bearing blocks in each pair correspond to each other one by one, and the corresponding two convex blocks are connected by bolts.

[0013] Further, a cable-bearing groove is arranged at the upper part of the outer wall of each of the main cable clamps, and each sling is wound in the cable-bearing groove of the corresponding main cable clamp.

[0014] Further, the cable-bearing groove is a semi-circular structure or a circular structure, and the cable-bearing groove is inclined at a certain angle relative to the axis of the main cable clamp;

[0015] When the main cable clamp is installed on the main cable, the cable-bearing groove is in a vertical state.

[0016] Further, an annular groove for fastening the main cable is arranged at the end of each of the main cable clamps.

[0017] There is also provided a suspension bridge based on the sling structure of the juxtaposed double main cables as described above, which includes:

[0018] A bridge deck;

[0019] Main cables, two in number, and the two main cables are arranged side by side in the transverse direction of the bridge;

[0020] The sling structure based on the juxtaposed double main cables as described above. The two main cable clamps of the sling structure are arranged in the transverse direction of the bridge. The two main cable clamps are respectively fixed to the two main cables, and the balance plate of the sling structure is connected to the bridge deck.

[0021] The beneficial effects brought by the technical solutions provided in this application include:

[0022] The embodiment of the present application provides a sling structure and a suspension bridge based on juxtaposed double main cables. Two main cable saddles are hinged to two ends of the saddle cross brace, and each main cable saddle can rotate up and down around the adjacent hinge point. When the length of the sling does not match the height of the corresponding main cable, the main cable saddle can rotate downward around the end of the saddle cross brace to adjust the height of the main cable to adapt to the length of the sling, ensuring that the two juxtaposed main cables and the slings are evenly stressed, and the forces exerted on the bridge deck by the slings are also balanced, thereby avoiding the problem of torsional stress on the bridge deck.

[0023] In addition, the saddle cross brace connects the two main cable saddles into a whole, which can effectively reduce the transverse relative displacement of the two juxtaposed main cables under the action of the slings and prevent the two main cables from colliding with each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is the overall structural schematic diagram of the embodiment of the present application;

[0026] Figure 2 is Figure 1 the side view schematic diagram of

[0027] Figure 3 is Figure 1 the connection schematic diagram of the two main cable saddles and the saddle cross brace in

[0028] Figure 4 is Figure 1 the structural schematic diagram of a main cable saddle in

[0029] Figure 5 is Figure 4 the side view schematic diagram of

[0030] Figure 6 is Figure 1 the connection schematic diagram of the saddle cross brace and the ear plate in

[0031] Figure 7 is Figure 6 the side view schematic diagram of

[0032] Reference Signs:

[0033] 1. Main cable; 2. Main cable clamp; 21. Pressure block; 211. Fixing plate; 212. Protrusion; 22. Cable groove; 23. Annular groove; 24. Ear plate; 25. Sleeve; 3. Cable clamp cross brace; 31. Connecting part; 32. Plug-in part; 4. Lifting cable; 5. Balance plate; 6. Stiffening beam; 7. Pin shaft. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0035] The embodiments of the present application provide a cable structure and a suspension bridge based on juxtaposed dual main cables, which can solve the problem of dimensional error between the main cable and the sling connected thereto, uneven force on the main cable and the sling, and thus causing torsion of the bridge deck.

[0036] like Figures 1 to 3 As shown, a sling structure based on juxtaposed double main cables includes a cable clamp cross brace 3, a main cable clamp 2 and a sling 4.

[0037] There are two main cable clamps 2, each of which is used to fix the main cable 1. The two main cable clamps 2 are respectively arranged at the two ends of the cable clamp cross brace 3, and each main cable clamp 2 is hinged with the end of the cable clamp cross brace 3 to form a hinge point, and the main cable clamp 2 rotates up and down around the adjacent hinge point. There are two slings 4, which are respectively wound around the two main cable clamps 2, and the two ends of each sling 4 are fixedly connected through a balance plate 5.

[0038] Specifically, the sling structure in the embodiment of the present application is installed on the juxtaposed dual main cables, that is, two juxtaposed main cables 1, and the two main cable clamps 2 are respectively fixed to the two main cables 1, that is, one main cable clamp 2 is fixed to one main cable 1. The two main cable clamps 2 of the cable clamp cross brace 3 are hinged to form two hinge points, and each main cable clamp 2 can rotate up and down around the adjacent hinge point. The two hinge points are symmetrically arranged about the cable clamp cross brace 3, and the two main cable clamps 2 are symmetrically arranged about the cable clamp cross brace 3 to ensure that the two main cables 1 are balanced in force.

[0039] Specifically, the slings 4 connected to the above-mentioned juxtaposed double main cables are also paired and juxtaposed. Preferably, the two juxtaposed slings 4 have the same length, and the balance board 5 is a left-right symmetrical structure. The midpoint of the cable clamp cross brace 3 and the symmetry axis of the balance board 5 are located on the same straight line. That is to say, the sling structure of the present application is a left-right symmetrical structure.

[0040] Furthermore, each sling 4 has a pair of ends. The two pairs of ends of the two slings 4 are inclined at a certain angle towards the direction of approaching each other, and both pairs of ends are connected to the balance plate 5, which is used to connect to the bridge deck.

[0041] Specifically, the two slings 4 have two pairs of ends, that is, the two slings 4 have four ends. The two pairs of ends are inclined at a certain angle towards the direction of approaching each other. Among the four ends, the distance between the two farthest adjacent ends is less than the center distance between the two cable clamp braces 3. This connection method is beneficial to reducing the size of the balance plate 5, thereby reducing the occupied space of the balance plate 5, and thus is beneficial to reducing the size of the bridge deck.

[0042] Specifically, in the embodiment of the present application, the two juxtaposed main cables 1 are arranged along the transverse direction of the bridge, the two main cable clamps 2 are also arranged along the transverse direction of the bridge, and the ends of the two slings 4 are arranged along the transverse direction of the bridge. When the two pairs of ends of the two slings 4 are inclined at a certain angle towards the direction of approaching each other, at this time, the distance between the two pairs of ends along the transverse direction of the bridge will also decrease, which is beneficial to reducing the transverse size of the balance plate 5, thereby reducing the transverse occupied space of the balance plate 5, and thus is beneficial to reducing the transverse size of the bridge deck.

[0043] Specifically, the inclination angle of each pair of the above-mentioned ends can be determined according to the actual situation. Preferably, the inclination angles of the two ends are the same, and the positions of the two pairs of ends are symmetrical about the balance plate 5 to ensure the balanced force of the two slings 4 and also ensure the balanced force of the balance plate 5.

[0044] Furthermore, as Figure 6 and Figure 7 shown, on each side of the two mutually approaching main cable clamps 2, there is provided a vertical ear plate 24. The cable clamp brace 3 includes a connecting portion 31 and plug-in portions 32 located at opposite ends of the connecting portion 31. The two plug-in portions 32 are respectively connected to the two ear plates 24 through a pin shaft 7, and the pin shaft 7 is horizontally arranged.

[0045] Specifically, the cable clamp brace 3 is connected to the main cable clamp 2 through the ear plate 24 to avoid damaging the structure of the main cable clamp 2. The cable clamp brace 3 includes a connecting portion 31 and plug-in portions 32. The two ends of the connecting portion 31 can be fixedly connected to the two plug-in portions 32 or can be telescopically connected. When the two ends of the connecting portion 31 can be telescopically connected to the two plug-in portions 32, the overall length of the cable clamp brace 3 can be adjusted to facilitate adjusting the distance between the two main cable clamps 2 through the cable clamp brace 3 to adapt to juxtaposed double main cables with different spacings. The connecting portion 31 can be threadedly connected to the plug-in portion 32 to achieve adjustable connection, and the connecting portion 31 can also be a telescopic adjusting rod. A vertical ear plate 24 is provided on the side wall of one main cable clamp 2, and the positions of the two ear plates 24 correspond to each other and are symmetrical about the cable clamp brace 3 to ensure the balanced force of the main cable clamp 2.

[0046] Specifically, in the embodiment of the present application, the sling structure of the present application is vertically placed. Each plug-in portion 32 includes two vertically arranged clamping blocks arranged opposite to each other. There is a distance between the two clamping blocks. Each clamping block has a through hole penetrating its plate surface, and the positions of the through holes of the two clamping blocks correspond to each other. The ear plate 24 is also vertically arranged, and each ear plate 24 has a through hole penetrating its plate surface. When a plug-in portion 32 is connected to an ear plate 24, the ear plate 24 is inserted between the two clamping blocks of the plug-in portion 32. The through holes of the two clamping blocks of the plug-in portion 32 and the through hole of the ear plate 24 are coaxially arranged, and the pin shaft 7 is horizontally inserted into the three through holes. At this time, the main cable clip 2 can rotate up and down around the adjacent pin shaft 7.

[0047] Further, each main cable clip 2 includes a sleeve 25. The sleeve 25 is used to sleeved on the outside of the main cable 1. The sleeve 25 is formed by butting two semi-circular sleeves, and there is a butting seam at the butting place. A filler for sealing is arranged in the butting seam.

[0048] Specifically, the sleeve 25 of each main cable clip 2 is formed by butting two semi-circular sleeves, and there is a butting seam between the two semi-circular sleeves, so that the main cable clip 2 can adapt to main cables 1 of different sizes. On the one hand, the above-mentioned filler can seal the butting seam and can also prevent water, so as to prevent the main cable 1 inside the main cable clip 2 from being corroded or damaged. Optionally, polysulfide sealant can be filled in the butting seam, which has a certain width and depth, ensuring the sealing effect of the butting seam.

[0049] Specifically, in the embodiment of the present application, the two semi-circular sleeves are butted left and right, and the butting seam is vertical, so as to avoid the position conflict between the butting seam and the ear plate 24, which affects the arrangement of the ear plate 24 and the structural stress performance. The width of the butting seam can be determined according to the actual situation. Setting the butting seam to an appropriate width can avoid the situation that when the actual void ratio of the main cable 1 is small, the two semi-circular sleeves of the main cable clip 2 are pressed against each other and do not match the size of the main cable 1.

[0050] Further, as Figure 4 and Figure 5 shown, each main cable clip 2 further includes pressure-bearing blocks 21. The pressure-bearing blocks 21 are arranged in pairs, and each pair of pressure-bearing blocks 21 is mirror-symmetrically arranged at both ends of the butting seam. The two semi-circular sleeves are detachably connected by two pairs of pressure-bearing blocks 21.

[0051] Specifically, the two semi-circular sleeves are connected as a whole through the pressure-bearing blocks 21. Each pair of pressure-bearing blocks 21 is mirror-symmetrically arranged at both ends of the docking seam, which can ensure uniform force on the two semi-circular sleeves. In the embodiment of the present application, there are two docking seams, one at the top of the main cable clamp 2 and the other at the bottom of the main cable clamp 2. Therefore, there are at least two pairs of pressure-bearing blocks 21, and at least one pair of pressure-bearing blocks 21 is arranged at the position of each docking seam to ensure the firm connection of the two semi-circular sleeves. The two semi-circular sleeves are connected through the pressure-bearing blocks 21 to avoid damaging the structure of the main cable clamp 2. The two semi-circular sleeves are detachably connected through the pressure-bearing blocks 21, with a simple structure and convenient installation and disassembly.

[0052] Furthermore, each pressure-bearing block 21 includes a fixing plate 211 and a plurality of protrusions 212. The fixing plate 211 and the plurality of protrusions 212 form a toothed structure. The fixing plate 211 is fixedly connected to the outer wall of the sleeve 25. A part of each protrusion 212 is fixedly connected to the fixing plate 211, and a part is fixedly connected to the outer wall of the sleeve 25. The protrusions 212 of the two pressure-bearing blocks 21 in each pair correspond to each other, and the corresponding two protrusions 212 are connected by bolts.

[0053] Specifically, the pressure-bearing block 21 is in a toothed structure, which can increase its contact area with the outer wall of the sleeve 25, so as to evenly transfer the acting force of the bolt to the outer wall of the sleeve 25, avoid stress concentration, and prevent the outer wall of the sleeve 25 from being damaged. Each pressure-bearing block 21 has a plurality of protrusions 212, and the plurality of protrusions 212 are evenly arranged, which is beneficial to evenly dissipate the acting force of the bolt by the plurality of protrusions 212. The size of the protrusions 212 of each above-mentioned pressure-bearing block 21 can be determined according to the actual situation.

[0054] Furthermore, a cable receiving groove 22 is provided on the upper part of the outer wall of each main cable clamp 2, and each sling 4 is wound in the cable receiving groove 22 of the corresponding main cable clamp 2.

[0055] Specifically, the cable receiving groove 22 plays a role in limiting the sling 4, avoiding the random movement of the sling 4 on the outer wall of the main cable clamp 2 and affecting the force on the sling 4 and the main cable 1. In the embodiment of the present application, each cable receiving groove 22 is a groove-shaped structure with two baffles. The sling 4 is wound in the cable receiving groove 22, and the cable receiving groove 22 is located between the two baffles. Moreover, the cable receiving groove 22 also has a gap at the position of the docking seam of the main cable clamp 2. At this time, the number of pressure-bearing blocks 21 is four pairs, and there are two pairs of pressure-bearing blocks 21 on each side of the cable receiving groove 22.

[0056] Furthermore, the cable receiving groove 22 is a semi-circular structure or a circular structure, and the cable receiving groove 22 is inclined at a certain angle with respect to the axis of the main cable clamp 2. When the main cable clamp 2 is installed on the main cable 1, the cable receiving groove 22 is in a vertical state.

[0057] Specifically, the cable receiving groove 22 is inclined at a certain angle with respect to the axis of the main cable clamp 2, which is beneficial to transfer the applied load to other parts of the main cable clamp 2 over a larger range, thereby avoiding stress concentration. When the main cable clamp 2 is installed on the main cable 1, the cable receiving groove 22 is in a vertical state. At this time, the sling 4 is also in a vertical state, and the two baffles of the cable receiving groove 22 do not interfere with each other and the sling 4.

[0058] Specifically, the cable receiving groove 22 can be a semi-circular structure or a circular structure, which can be determined according to the actual situation, as long as the part where the sling 4 is connected to the main cable clamp 2 is located inside the cable receiving groove 22. When the cable receiving groove 22 is inclined at a certain angle with respect to the axis of the main cable clamp 2, the size of the pressure-bearing block 21 can be set according to the area of the side wall of the sleeve 25 of the main cable clamp 2. For the part with a larger area of the side wall of the sleeve 25, the size of the pressure-bearing block 21 is larger; for the part with a smaller area of the side wall of the sleeve 25, the size of the pressure-bearing block 21 is smaller, ensuring the overall structural force balance of the main cable clamp 2.

[0059] Furthermore, an annular groove 23 for fastening the main cable 1 is provided at each end of each main cable clamp 2.

[0060] Specifically, the main cable 1 has a wrapping tape, and the wrapping tape is fixed in the annular groove 23 through a stainless steel clamping band, making the connection between the main cable 1 and the main cable clamp 2 firm and not easily loosening or leaking air.

[0061] The embodiment of the present application also provides a suspension bridge based on the sling structure based on juxtaposed double main cables as described above, which includes a bridge deck, the main cable 1, and the sling structure based on juxtaposed double main cables as described above.

[0062] Among them, the number of the main cables 1 is two, and the two main cables 1 are arranged side by side in the transverse direction of the bridge. For the sling structure based on juxtaposed double main cables as described above, the two main cable clamps 2 of the sling structure are arranged in the transverse direction of the bridge, the two main cable clamps 2 are respectively fixed to the two main cables 1, and the balance plate 5 of the sling structure is connected to the bridge deck.

[0063] Specifically, the above-mentioned balance plate 5 can be directly connected to the bridge deck or indirectly connected to the bridge deck. In the embodiment of the present application, the balance plate 5 is connected to the bridge deck through the stiffening girder 6, and the balance plate 5 is hinged to the stiffening girder 6, so that the balance plate 5 can adjust its posture according to the stress condition of the sling 4, making the two slings 4 connected to it stress-balanced.

[0064] Specifically, each sling 4 has a pair of ends, and the two pairs of ends of the two slings 4 are inclined at a certain angle in the direction of approaching each other. The two juxtaposed main cables 1 are arranged along the transverse direction of the bridge, the two main cable clamps 2 are also arranged along the transverse direction of the bridge, and the ends of the two slings 4 are arranged along the transverse direction of the bridge. When the two pairs of ends of the two slings 4 are inclined at a certain angle in the direction of approaching each other, at this time, the distance between the two pairs of ends along the transverse direction of the bridge will also decrease, which is beneficial to reducing the transverse dimension of the balance plate 5, thereby reducing the occupied space of the balance plate 5 in the transverse direction of the bridge, and thus beneficial to reducing the transverse dimension of the bridge deck. The inclination angle of each pair of the above-mentioned ends can be determined according to the actual situation. Preferably, the inclination angles of the two ends are the same, and the positions of the two pairs of ends are symmetrical about the balance plate 5, ensuring the balanced force of the two slings 4 and also ensuring the balanced force of the balance plate 5.

[0065] Preferably, the lengths of the two above-mentioned slings 4 are the same, and the balance plate 5 is a left-right symmetric structure. The midpoint of the cable clamp cross brace 3 and the symmetry axis of the balance plate 5 are located on the same straight line. That is to say, the sling structure of the present application is a left-right symmetric structure. The balance plate 5 can be an inverted triangular plate, and one tip of the triangular plate is hinged to the stiffening girder 6. In actual engineering, the two juxtaposed main cables 1 are connected with multiple pairs of juxtaposed slings 4. Therefore, the above-mentioned suspension bridge can have multiple sling structures of the present application.

[0066] In the description of the present application, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. Unless otherwise clearly specified and defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0067] It should be noted that in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0068] The above are only specific embodiments of the present application, enabling those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A sling structure based on juxtaposed double main cables, characterized in that, it includes: a cable clamp cross brace (3); main cable clamps (2), the number of which is two, and each of the main cable clamps (2) is used to be fixed to the main cable (1). The two main cable clamps (2) are respectively arranged at both ends of the cable clamp cross brace (3), and each main cable clamp (2) is hinged to the end of the cable clamp cross brace (3) to form a hinge point, and the main cable clamp (2) rotates up and down around the adjacent hinge point; sling ropes (4), the number of which is two, and the two sling ropes (4) are respectively wound around the two main cable clamps (2), and both ends of each sling rope (4) are fixedly connected through a balance plate (5); on the upper part of the outer wall of each main cable clamp (2), a cable bearing groove (22) is provided, and each sling rope (4) is wound in the cable bearing groove (22) of the corresponding main cable clamp (2); the cable bearing groove (22) is a semi-circular structure or a circular structure, and the cable bearing groove (22) is inclined at a certain angle relative to the axis of the main cable clamp (2); when the main cable clamp (2) is installed on the main cable (1), the cable bearing groove (22) is in a vertical state.

2. The sling structure based on juxtaposed double main cables according to claim 1, characterized in that: each sling rope (4) has a pair of ends, and the two pairs of ends of the two sling ropes (4) are inclined at a certain angle in the direction of approaching each other, and the two pairs of ends are both connected to the balance plate (5), and the balance plate (5) is used to be connected to the bridge deck.

3. The sling structure based on juxtaposed double main cables according to claim 1, characterized in that: on each side of the two main cable clamps (2) close to each other, a vertical ear plate (24) is provided. The cable clamp cross brace (3) includes a connecting part (31) and plug-in parts (32) located at opposite ends of the connecting part (31). The two plug-in parts (32) are respectively connected to the two ear plates (24) through a pin shaft (7), and the pin shaft (7) is horizontally arranged.

4. The sling structure based on juxtaposed double main cables according to claim 1, characterized in that: each main cable clamp (2) includes a sleeve (25), the sleeve (25) is used to be sleeved on the outside of the main cable (1), the sleeve (25) is formed by butting two semi-circular sleeves, and a butting seam is left at the butting place, and a filler for sealing is arranged in the butting seam.

5. The sling structure based on juxtaposed double main cables according to claim 4, characterized in that: each main cable clamp (2) further includes pressure-bearing blocks (21), the pressure-bearing blocks (21) are arranged in pairs, and each pair of pressure-bearing blocks (21) is mirror-symmetrically arranged at both ends of the butting seam, and the two semi-circular sleeves are detachably connected through two pairs of pressure-bearing blocks (21).

6. The sling structure based on juxtaposed double main cables according to claim 5, characterized in that: Each of the pressure-bearing blocks (21) includes a fixing plate (211) and a plurality of bumps (212). The fixing plate (211) and the plurality of bumps (212) form a toothed structure. The fixing plate (211) is fixedly connected to the outer wall of the sleeve (25). A part of each bump (212) is fixedly connected to the fixing plate (211), and a part is fixedly connected to the outer wall of the sleeve (25). The bumps (212) of two pressure-bearing blocks (21) in each pair correspond to each other one by one, and the two corresponding bumps (212) are connected by bolts.

7. The sling structure based on juxtaposed double main cables according to claim 1, characterized in that: An annular groove (23) for fastening the main cable (1) is provided at each end of each main cable clip (2).

8. A suspension bridge with a sling structure based on the juxtaposed double main cables according to claim 1, characterized in that it includes: a bridge deck; main cables (1), two in number, and the two main cables (1) are arranged side by side along the transverse direction of the bridge; The sling structure based on juxtaposed double main cables according to any one of claims 1 to 7, the two main cable clips (2) of the sling structure are arranged along the transverse direction of the bridge, the two main cable clips (2) are respectively fixed to the two main cables (1), and the balance plate (5) of the sling structure is connected to the bridge deck.

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