Center buckle anchor pulling plate of suspension bridge and suspension bridge

Abstract

The invention relates to the technical field of bridge engineering, in particular to a central buckle anchor pulling plate of a suspension bridge and the suspension bridge. The central buckling anchor pulling plate comprises an anchor box body used for being detachably connected with a main beam structure, and the anchor box body is provided with an anchor hole for a cable to penetrate through; and the bearing assembly is arranged in the anchor box main body, the bearing assembly is used for being detachably connected with the anchor box main body, and the bearing assembly is matched with an anchor head of the inhaul cable in a limiting mode. The center buckle anchor pulling plate structure is arranged in the anchor box, the closely-attached bearing assembly is arranged at the rear end of the center buckle anchor head, the bearing assembly can limit the anchor head, then it can be guaranteed that the position of the center buckle anchor head is fixed in the working process, the anchor head is prevented from loosening under the train repeated loading working condition, damage caused by repeated impact of the anchor head on the anchor box structure is reduced, and the service life of the anchor box is prolonged. And the service life of the structure is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of bridge engineering, and in particular to a central anchor plate of a suspension bridge and a suspension bridge. Background Art

[0002] With the continuous development of bridge construction, the demand for railway suspension bridges is increasing day by day. Suspension bridges are flexible structures. Under the action of trains, earthquakes and wind loads, significant longitudinal displacement will occur between the stiffening beams and the main cables, resulting in frequent movement of the beam ends, which worsens the working environment of the expansion devices, supports and slings at the ends of the suspension bridges. To improve this phenomenon, a central buckle needs to be added to the mid-span area of ​​the suspension bridge. Under normal operating conditions, the central buckle can reduce the displacement difference of the cable beam, significantly reduce the displacement of the beam end, and increase the service life of the expansion device, support and sling at the beam end; under earthquake conditions, the central buckle can consume energy and reduce the seismic force on the main structure.

[0003] In the related technology, the central buckle adopts an integral anchor plate structure. Due to the large proportion of live load in railway suspension bridges, the alternating internal force amplitude is large under normal operating conditions. It is designed for fatigue control. In order to meet the force requirements, its cross-sectional size is large and its economy is poor. Under the reciprocating loading conditions of the train, the central buckle will be unloaded to varying degrees, and the loose anchor head will impact repeatedly, causing the anchor box structure to withstand a large impact force and be damaged. Under earthquake conditions, the central buckle is damaged by energy consumption, and the integral anchor plate is difficult to repair after damage. For this reason, a central buckle anchor plate structure with high fatigue resistance is designed. How to improve the economy of the central buckle anchor plate while ensuring the structural force requirements has become a difficult problem that practitioners urgently need to solve. Summary of the invention

[0004] Regarding the relevant technology, under the reciprocating loading condition of the train, the central buckle will experience different degrees of unloading, and the loose anchor head will be repeatedly impacted, causing the anchor box structure to be subjected to a large impact force and damaged, and it is difficult to repair.

[0005] In a first aspect, an embodiment of the present application provides a central anchor plate of a suspension bridge, comprising:

[0006] An anchor box body, which is used to be detachably connected to the main beam structure, and the anchor box body is provided with an anchor hole for the cable to pass through;

[0007] A supporting component is arranged in the anchor box body, the supporting component is used to be detachably connected to the anchor box body, and the supporting component is limitedly matched with the anchor head of the cable.

[0008] In combination with the first aspect, in one implementation, the anchor box body includes:

[0009] a rear anchor box for detachably connecting to the main beam structure;

[0010] At least one front anchor box is detachably connected to the rear anchor box via a splicing portion.

[0011] In combination with the first aspect, in one implementation, the front anchor box includes:

[0012] At least two anchor plates arranged at intervals, wherein the anchor plates are connected to the rear anchor box through the splicing portion;

[0013] At least two pressure-bearing plates are arranged at intervals, the two ends of the pressure-bearing plates are respectively connected to the two anchor plates, and the pressure-bearing plates are arranged perpendicularly to the two anchor plates;

[0014] A pad is connected to both the anchor plate and the pressure plate, the pad is anchored to the cable, and the pad is perpendicular to the axial direction of the cable.

[0015] In combination with the first aspect, in one embodiment, an arc segment is provided at the end where the pressure plate intersects with the anchor plate.

[0016] In combination with the first aspect, in one embodiment, the anchor plate is provided with a through hole at the arc section close to the pressure plate.

[0017] In combination with the first aspect, in one implementation, the through hole is dumbbell-shaped.

[0018] In combination with the first aspect, in one embodiment, the through hole includes two circular holes and a rectangular hole that are spaced apart from each other, the rectangular hole is disposed between the two circular holes, and the length of the rectangular hole is the same as the thickness of the pressure plate.

[0019] In combination with the first aspect, in one embodiment, the supporting assembly includes: a supporting angle plate, which is detachably connected to the anchor plate of the rear anchor box or the front anchor box via a connecting plate.

[0020] In combination with the first aspect, in one embodiment, a plurality of groups of bolt holes are arranged on the anchor plate and the front anchor box at intervals along the length direction of the cable, and the connecting plate can be connected to any group of the bolt holes on the anchor plate and the front anchor box by bolts.

[0021] In a second aspect, an embodiment of the present application provides a suspension bridge, characterized in that it includes: a central anchor plate as described in any one of the above items.

[0022] The beneficial effects brought by the technical solution provided by the embodiment of the present application include at least:

[0023] The present application provides a close-fitting supporting component at the rear end of the central anchor head by setting a central anchor pull plate structure in the anchor box. The supporting component can limit the anchor head, thereby ensuring that the position of the central anchor head is fixed during operation, avoiding loosening of the anchor head under repeated loading conditions of the train, reducing damage caused by repeated impact of the anchor head on the anchor box structure, and improving the service life of the structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 This is a side elevation view of the central anchor plate in the first embodiment of the present application;

[0026] Figure 2 This is a side elevation view of a central anchor plate in the second embodiment of the present application;

[0027] Figure 3 For this application Figure 1 Cross-sectional view from medium AA perspective;

[0028] Figure 4 For this application Figure 1 Cross-sectional view from the middle BB perspective;

[0029] Figure 5 This is a schematic diagram of the front anchor box in an embodiment of the present application;

[0030] Figure 6 For this application Figure 3 The local schematic diagram at E in the middle;

[0031] Figure 7 It is a schematic diagram of the supporting component in the embodiment of the present application.

[0032] In the figure: 1. Anchor box body; 2. Rear anchor box; 21. Node plate; 22. First stiffening plate; 3. Front anchor box; 31. Anchor plate; 311. Through hole; 3111. Round hole; 3112. Rectangular hole; 32. Pressure plate; 33. Pad; 34. Second stiffening plate; 4. Splicing part; 41. Splicing plate; 42. Filling plate; 5. Cable; 6. Support assembly; 61. Support angle plate; 62. Connecting plate. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the solution of the present application, 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 only 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 creative work are within the scope of protection of this application.

[0034] Regarding the relevant technology, under the reciprocating loading condition of the train, the central buckle will experience different degrees of unloading, and the loose anchor head will be repeatedly impacted, causing the anchor box structure to be subjected to a large impact force and damaged, and it is difficult to repair.

[0035] In the first aspect, the embodiment of the present application provides a central anchor plate of a suspension bridge, which includes: an anchor box body 1 and a supporting assembly 6; wherein:

[0036] The anchor box body 1 is used to be detachably connected to the main beam structure, and the anchor box body 1 is provided with an anchor hole for the cable 5 to pass through. A supporting assembly 6 is provided in the anchor box body 1, and the supporting assembly 6 is used to be detachably connected to the anchor box body 1, and the supporting assembly 6 is limitedly matched with the anchor head of the cable 5.

[0037] It is understandable that the support assembly 6 can fit closely with the anchor head part of the cable 5 to play a role of limiting. Therefore, the central buckle anchor head can be fixed in position during operation, preventing the anchor head from loosening under repeated loading conditions of the train, reducing the damage caused by repeated impact of the anchor head on the anchor box structure, and improving the service life of the structure.

[0038] In some specific embodiments, the anchor box body 1 includes: a rear anchor box 2 and at least one front anchor box 3; wherein,

[0039] The rear anchor box 2 is used to be detachably connected to the main beam structure. The front anchor box 3 is detachably connected to the rear anchor box 2 via the splicing portion 4.

[0040] It is worth noting that the anchor box body 1 of the present application adopts a split structure, which is convenient for subsequent disassembly and maintenance, and has high flexibility, thereby improving the overall economy.

[0041] In combination with the above specific implementation methods, in the first embodiment of the present application, as Figure 1 As shown, the central anchor plate includes two front anchor boxes 3 , and the two front anchor boxes 3 are arranged on both sides of the rear anchor box 2 .

[0042] In combination with the above specific implementation manner, in the second embodiment of the present application, the front anchor box 3 is arranged on a single side of the rear anchor box 2 .

[0043] It is understandable that in practical applications, the above two embodiments can be reasonably used according to working conditions.

[0044] In some embodiments, Figure 3 , Figure 4 and Figure 5 As shown, the front anchor box 3 includes: at least two anchor plates 31 arranged at intervals, at least two pressure plates 32 and a pad 33 arranged at intervals; wherein,

[0045] At least two anchor plates 31 are arranged at intervals, and the anchor plates 31 are connected to the rear anchor box 2 through the splicing part 4. At least two pressure plates 32 are arranged at intervals, and the two ends of the pressure plate 32 are respectively connected to the two anchor plates 31, and the pressure plate 32 is arranged perpendicular to the two anchor plates 31. A pad 33 is connected to both the anchor plate 31 and the pressure plate 32, and the pad 33 is anchored to the cable 5, and the pad 33 is perpendicular to the axial direction of the cable 5. Optionally, a second stiffening plate 34 is provided on the pad 33.

[0046] It is worth noting that the pressure plate 32 is connected to the cable 5 and can transfer the anchoring bearing force to the anchor plate 31 .

[0047] Furthermore, an arc segment is provided at the end where the pressure plate 32 intersects with the anchor plate 31 .

[0048] It is worth noting that the main reason for designing the end of the pressure plate 32 as an arc is to reduce stress concentration, thereby protecting the pressure plate 32 from being easily damaged when subjected to force. When the pressure plate 32 is subjected to pressure, if the end is designed as a right angle or a sharp edge, stress will be concentrated there, thereby increasing the risk of damage to the pressure plate. By designing the end as an arc, stress can be effectively dispersed to avoid excessive local stress, thereby improving the durability and service life of the pressure plate.

[0049] Specifically, the working principle of the arc design is to reduce stress concentration through streamlined geometry. When the pressure plate 32 is subjected to stress, the arc shape can make the stress more evenly distributed over the entire pressure plate 32, rather than concentrated in certain specific areas. This design not only improves the strength and durability of the pressure plate 32, but also helps maintain the flatness and precision of the pressure plate, ensuring its stability and reliability under various working conditions.

[0050] In some preferred embodiments, the anchor plate 31 is provided with a through hole 311 at an arc section close to the pressure plate 32 .

[0051] It is understandable that, as described above, the area near the end of the pressure plate 32 is a stress concentration area, and the anchor plate 31 is provided with a through hole 311 in this area to disperse the tension borne by the anchor plate 31, avoid stress concentration, and thus reduce the risk of damage to the anchor plate 31. Secondly, after the anchor plate 31 is provided with a through hole 311, the stress distribution under fatigue load can be changed, thereby changing the fatigue details of the anchor plate design, and the fatigue resistance of the structure is significantly improved. Furthermore, by providing the through hole 311, the design cross-section of the anchor plate 31 that meets the fatigue requirements can be reduced, thereby saving manufacturing materials and improving economic efficiency.

[0052] Preferably, if Figure 6 As shown, the through hole 311 is in a dumbbell shape.

[0053] Specifically, the through hole 311 includes two circular holes 3111 and a rectangular hole 3112 that are spaced apart from each other. The rectangular hole 3112 is disposed between the two circular holes 3111 , and the length of the rectangular hole 3112 is the same as the thickness of the pressure plate 32 .

[0054] It can be understood that the two circular holes 3111 have the same radius and are symmetrically arranged, and the rectangular hole 3112 is connected to the two circular holes 3111. This structure can improve the fatigue resistance of the anchor plate 31, save the cross-section required for fatigue resistance, and has excellent economy.

[0055] In some optional implementations, such as Figure 3 and Figure 7 As shown, the supporting assembly 6 includes: a supporting angle plate 61, which is detachably connected to the anchor plate 31 of the rear anchor box 2 or the front anchor box 3 through a connecting plate 62.

[0056] It can be understood that the supporting angle plate 61 is used to fit and abut against the anchor head of the cable 5 to play a limiting role.

[0057] Furthermore, the supporting angle plate 61 is arranged in a direction perpendicular to the length direction of the cable 5, and the contact points of the two are tightly fitted.

[0058] Preferably, in order to improve the adaptability of the central anchor plate, a plurality of groups of bolt holes are arranged on the anchor plate 31 and the front anchor box 3 at intervals along the length direction of the cable 5, and the connecting plate 62 can be connected to any group of the bolt holes on the anchor plate 31 and the front anchor box 3 by bolts.

[0059] It is worth noting that after the anchor box body 1 and the cable 5 are installed and positioned, the supporting assembly 6 is installed. The overall position of the supporting assembly 6 can be adjusted by connecting the connecting plate 62 to the bolt holes at different positions during installation, thereby ensuring that the supporting angle plate 61 is in close contact with the rear end of the anchor head.

[0060] In some optional implementations, such as Figure 3 As shown, the splicing portion 4 includes a splicing plate 41 and a filling plate 42 .

[0061] It can be understood that the filling plate 42 can be used to fill the gap between two parts to improve the connection stability.

[0062] Furthermore, the rear anchor box 2 includes a node plate 21 and a first stiffening plate 22. The node plate 21 is detachably connected to the splicing portion 4.

[0063] In a second aspect, the present application provides a suspension bridge, which includes: a central anchor plate of the suspension bridge, the central anchor plate includes: an anchor box body 1 and a supporting assembly 6; wherein,

[0064] The anchor box body 1 is used to be detachably connected to the main beam structure, and the anchor box body 1 is provided with an anchor hole for the cable 5 to pass through. A supporting assembly 6 is provided in the anchor box body 1, and the supporting assembly 6 is used to be detachably connected to the anchor box body 1, and the supporting assembly 6 is limitedly matched with the anchor head of the cable 5.

[0065] It is understandable that the support assembly 6 can fit closely with the anchor head part of the cable 5 to play a role of limiting. Therefore, the central buckle anchor head can be fixed in position during operation, preventing the anchor head from loosening under repeated loading conditions of the train, reducing the damage caused by repeated impact of the anchor head on the anchor box structure, and improving the service life of the structure.

[0066] In some specific embodiments, the anchor box body 1 includes: a rear anchor box 2 and at least one front anchor box 3; wherein,

[0067] The rear anchor box 2 is used to be detachably connected to the main beam structure. The front anchor box 3 is detachably connected to the rear anchor box 2 via the splicing portion 4.

[0068] It is worth noting that the anchor box body 1 of the present application adopts a split structure, which is convenient for subsequent disassembly and maintenance, and has high flexibility, thereby improving the overall economy.

[0069] In combination with the above specific implementation methods, in the first embodiment of the present application, as Figure 1 As shown, the central anchor plate includes two front anchor boxes 3 , and the two front anchor boxes 3 are arranged on both sides of the rear anchor box 2 .

[0070] In combination with the above specific implementation manner, in the second embodiment of the present application, the front anchor box 3 is arranged on a single side of the rear anchor box 2 .

[0071] It is understandable that in practical applications, the above two embodiments can be reasonably used according to working conditions.

[0072] In some embodiments, Figure 3 , Figure 4 and Figure 5As shown, the front anchor box 3 includes: at least two anchor plates 31 arranged at intervals, at least two pressure plates 32 and a pad 33 arranged at intervals; wherein,

[0073] At least two anchor plates 31 are arranged at intervals, and the anchor plates 31 are connected to the rear anchor box 2 through the splicing part 4. At least two pressure plates 32 are arranged at intervals, and the two ends of the pressure plate 32 are respectively connected to the two anchor plates 31, and the pressure plate 32 is arranged perpendicular to the two anchor plates 31. A pad 33 is connected to both the anchor plate 31 and the pressure plate 32, and the pad 33 is anchored to the cable 5, and the pad 33 is perpendicular to the axial direction of the cable 5. Optionally, a second stiffening plate 34 is provided on the pad 33.

[0074] It is worth noting that the pressure plate 32 is connected to the cable 5 and can transfer the anchoring bearing force to the anchor plate 31 .

[0075] Furthermore, an arc segment is provided at the end where the pressure plate 32 intersects with the anchor plate 31 .

[0076] It is worth noting that the main reason for designing the end of the pressure plate 32 as an arc is to reduce stress concentration, thereby protecting the pressure plate 32 from being easily damaged when subjected to force. When the pressure plate 32 is subjected to pressure, if the end is designed as a right angle or a sharp edge, stress will be concentrated there, thereby increasing the risk of damage to the pressure plate. By designing the end as an arc, stress can be effectively dispersed to avoid excessive local stress, thereby improving the durability and service life of the pressure plate.

[0077] Specifically, the working principle of the arc design is to reduce stress concentration through streamlined geometry. When the pressure plate 32 is subjected to stress, the arc shape can make the stress more evenly distributed over the entire pressure plate 32, rather than concentrated in certain specific areas. This design not only improves the strength and durability of the pressure plate 32, but also helps maintain the flatness and precision of the pressure plate, ensuring its stability and reliability under various working conditions.

[0078] In some preferred embodiments, the anchor plate 31 is provided with a through hole 311 at an arc section close to the pressure plate 32 .

[0079] It is understandable that, as described above, the area near the end of the pressure plate 32 is a stress concentration area, and the through hole 311 provided in this area of ​​the anchor plate 31 can disperse the tension borne by the anchor plate 31, avoid stress concentration, and thus reduce the risk of damage to the anchor plate 31.

[0080] Preferably, if Figure 6 As shown, the through hole 311 is in a dumbbell shape.

[0081] Specifically, the through hole 311 includes two circular holes 3111 and a rectangular hole 3112 that are spaced apart from each other. The rectangular hole 3112 is disposed between the two circular holes 3111 , and the length of the rectangular hole 3112 is the same as the thickness of the pressure plate 32 .

[0082] It can be understood that the two circular holes 3111 have the same radius and are symmetrically arranged, and the rectangular hole 3112 is connected to the two circular holes 3111. This structure can improve the fatigue resistance of the anchor plate 31, save the cross-section required for fatigue resistance, and has excellent economy.

[0083] In some optional implementations, such as Figure 3 and Figure 7 As shown, the supporting assembly 6 includes: a supporting angle plate 61, which is detachably connected to the anchor plate 31 of the rear anchor box 2 or the front anchor box 3 through a connecting plate 62.

[0084] It can be understood that the supporting angle plate 61 is used to fit and abut against the anchor head of the cable 5 to play a limiting role.

[0085] Furthermore, the supporting angle plate 61 is arranged in a direction perpendicular to the length direction of the cable 5, and the contact points of the two are tightly fitted.

[0086] Preferably, in order to improve the adaptability of the central anchor plate, a plurality of groups of bolt holes are arranged on the anchor plate 31 and the front anchor box 3 at intervals along the length direction of the cable 5, and the connecting plate 62 can be connected to any group of the bolt holes on the anchor plate 31 and the front anchor box 3 by bolts.

[0087] It is worth noting that after the anchor box body 1 and the cable 5 are installed and positioned, the supporting assembly 6 is installed. The overall position of the supporting assembly 6 can be adjusted by connecting the connecting plate 62 to the bolt holes at different positions during installation, thereby ensuring that the supporting angle plate 61 is in close contact with the rear end of the anchor head.

[0088] In some optional implementations, such as Figure 3 As shown, the splicing portion 4 includes a splicing plate 41 and a filling plate 42 .

[0089] It can be understood that the filling plate 42 can be used to fill the gap between two parts to improve the connection stability.

[0090] Furthermore, the rear anchor box 2 includes a node plate 21 and a first stiffening plate 22. The node plate 21 is detachably connected to the splicing portion 4.

[0091] In summary, the present application provides a close-fitting supporting component at the rear end of the central anchor head by setting a central buckle anchor plate structure in the anchor box. The supporting component can limit the anchor head, thereby ensuring that the position of the central anchor head is fixed during operation, avoiding loosening of the anchor head under repeated loading conditions of the train, reducing damage caused by repeated impacts of the anchor head on the anchor box structure, and improving the service life of the structure. Furthermore, the central buckle anchor plate structure is bolted to the main structure for easy disassembly, on-site installation, and repair and replacement after damage. In addition, the central buckle anchor plate structure is provided with a dumbbell-shaped opening behind the arc end of the anchor plate pressure plate. This structure can improve the fatigue resistance of the anchor plate, meet the requirements of fatigue resistance, and save cross-section, which is more economical.

[0092] In the description of the present application, it should be noted that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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 cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the 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 the specific circumstances.

[0093] 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 such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0094] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent 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 the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A central anchor plate of a suspension bridge, characterized in that: include: An anchor box body (1) is used to be detachably connected to the main beam structure, and the anchor box body (1) is provided with an anchor hole for the cable (5) to pass through; A supporting assembly (6) is arranged in the anchor box body (1), the supporting assembly (6) is used to be detachably connected to the anchor box body (1), and the supporting assembly (6) is limitedly matched with the anchor head of the cable (5).

2. The central anchor plate of a suspension bridge according to claim 1, characterized in that: The anchor box body (1) comprises: a rear anchor box (2) for being detachably connected to the main beam structure; At least one front anchor box (3) is detachably connected to the rear anchor box (2) via a splicing portion (4).

3. The central anchor plate of a suspension bridge according to claim 2, characterized in that: The front anchor box (3) comprises: At least two anchor plates (31) arranged at intervals, wherein the anchor plates (31) are connected to the rear anchor box (2) via the splicing portion (4); At least two pressure-bearing plates (32) are arranged at intervals, two ends of the pressure-bearing plate (32) are respectively connected to the two anchor plates (31), and the pressure-bearing plate (32) and the two anchor plates (31) are arranged vertically; A pad (33) is connected to both the anchor plate (31) and the pressure plate (32); the pad (33) is anchored to the cable (5), and the pad (33) is perpendicular to the axial direction of the cable (5).

4. The central anchor plate of a suspension bridge according to claim 3, characterized in that: The end where the pressure bearing plate (32) intersects with the anchor plate (31) is provided with an arc segment ().

5. The central anchor plate of a suspension bridge according to claim 4, characterized in that: The anchor plate (31) is provided with a through hole (311) at the arc section () close to the pressure plate (32).

6. The central anchor plate of a suspension bridge according to claim 5, characterized in that: The through hole (311) is in a dumbbell shape.

7. The central anchor plate of a suspension bridge according to claim 6, characterized in that: The through hole (311) comprises two circular holes (3111) and a rectangular hole (3112) which are arranged at intervals. The rectangular hole (3112) is arranged between the two circular holes (3111), and the length of the rectangular hole (3112) is the same as the thickness of the pressure plate (32).

8. The central anchor plate of a suspension bridge according to claim 3, characterized in that: The supporting assembly (6) comprises: a supporting angle plate (61), which is detachably connected to the anchor plate (31) of the rear anchor box (2) or the front anchor box (3) via a connecting plate (62).

9. The central anchor plate of a suspension bridge according to claim 8, characterized in that: The anchor plate (31) and the front anchor box (3) are provided with a plurality of groups of bolt holes spaced apart along the length direction of the cable (5), and the connecting plate (62) can be connected to any group of the bolt holes on the anchor plate (31) and the front anchor box (3) by bolts.

10. A suspension bridge, characterized in that: include: A central anchor plate as described in any one of claims 1 to 9.

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