Central buckle anchor pull plate of suspension bridge and suspension bridge

Abstract

The application relates to the technical field of bridge engineering, in particular to a central buckle anchor pull plate of a suspension bridge and the suspension bridge. The central buckle anchor pull plate comprises an anchor box main body which is used for being detachably connected with a main beam structure, the anchor box main body is provided with an anchor hole through which a cable passes; a supporting assembly is arranged in the anchor box main body, the supporting assembly is used for being detachably connected with the anchor box main body, and the supporting assembly is limitedly matched with an anchor head of the cable. According to the application, the central buckle anchor pull plate structure is arranged in the anchor box, a close supporting assembly is arranged at the rear end of the central buckle anchor head, the supporting assembly can limit the anchor head, the position of the central buckle anchor head can be fixed in work, the anchor head can be prevented from loosening under the working condition of repeated train loading, the damage of the anchor box structure caused by repeated impact of the anchor head on the anchor box structure is reduced, and the service life of the structure is prolonged.

Description

Technical Field

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

[0002] With the continuous advancement of bridge construction, the demand for railway suspension bridges is increasing. Suspension bridges are flexible structures. Under the influence of trains, earthquakes, and wind loads, significant longitudinal displacement will occur between the stiffening beams and the main cables. This causes frequent movement of the beam ends, which deteriorates the working environment of the expansion joints, supports, and suspenders at the ends of the suspension bridges. To improve this phenomenon, central buckles are required in the mid-span area of ​​the suspension bridge. Under normal operating conditions, the central buckles can reduce the displacement difference between the cable beams, significantly reduce the displacement of the beam ends, and increase the service life of the expansion joints, supports, and suspenders at the beam ends. Under seismic conditions, the central buckles can dissipate energy and damage, reducing the seismic forces acting on the main structure.

[0003] In related technologies, 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. To meet the force requirements, its cross-sectional size is large, and its economic efficiency is poor. Under the reciprocating loading conditions of the train, the central buckle will experience varying degrees of unloading. The loose anchor head will repeatedly impact, causing the anchor box structure to withstand large impact forces and damage. Under earthquake conditions, the central buckle will dissipate energy and damage, making the integral anchor plate difficult to repair after damage. Therefore, designing a central buckle anchor plate structure with high fatigue resistance and improving the economic efficiency of the central buckle anchor plate while ensuring the structural force requirements have become problems 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 withstand a large impact force and be damaged, and it is difficult to repair.

[0005] In a first aspect, an embodiment of the present application provides a central anchor plate for 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 assembly is provided in the anchor box body, the supporting assembly is used to be detachably connected to the anchor box body, and the supporting assembly is limitedly matched with the anchor head of the cable.

[0008] In conjunction with the first aspect, in one embodiment, 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 conjunction with the first aspect, in one embodiment, the front anchor box includes:

[0012] at least two anchor plates spaced apart from each other, the anchor plates being connected to the rear anchor box via the joint;

[0013] At least two pressure-bearing plates are arranged at intervals, both ends of the pressure-bearing plates are connected to the two anchor plates respectively, and the pressure-bearing plates are arranged perpendicular 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 embodiment, 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 located 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, multiple groups of bolt holes are provided 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 of the technical solutions provided in the embodiments of the present application include at least:

[0023] The present application sets a central buckle anchor plate structure in the anchor box and provides a close-fitting supporting component at the rear end of the central buckle anchor head. The supporting component can limit the anchor head, thereby ensuring that the position of the central buckle 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 following briefly introduces the drawings required for use in the description of the embodiments. 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 any 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 the 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 of point E in the middle;

[0031] Figure 7 Schematic diagram of the supporting assembly in an 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 better understand the technical field of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0034] In the related art, under the train reciprocating loading condition, the central buckle will be unloaded to different degrees, the anchor head will be repeatedly impacted, the anchor box structure will bear a large impact force and be damaged, and it is difficult to repair.

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

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

[0037] It can be understood that the supporting assembly 6 can be closely attached to the anchor head part of the cable 5, and plays a limiting role. Further, in the work, the position of the central buckle anchor head can be fixed, the anchor head loosening under the repeated loading condition of the train can be avoided, the damage caused by the repeated impact of the anchor head on the anchor box structure can be reduced, and the service life of the structure is improved.

[0038] In some specific embodiments, the anchor box body 1 comprises: 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 with the main beam structure. The front anchor box 3 is detachably connected with the rear anchor box 2 through a splicing part 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, has high flexibility, and improves the overall economy.

[0041] In combination with the above specific embodiments, in the first embodiment of the present application, as shown in Figure 1 The central buckle anchor plate comprises 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 embodiments, in the second embodiment of the present application, the front anchor box 3 is arranged on one side of the rear anchor box 2.

[0043] It can be understood that in actual application, the above two embodiments can be reasonably used according to the working condition.

[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 spaced apart, at least two pressure plates 32 spaced apart, and a pad 33; wherein,

[0045] At least two anchor plates 31 are spaced apart and connected to the rear anchor box 2 via the joint 4. At least two pressure plates 32 are spaced apart and connected to the two anchor plates 31 at both ends, and the pressure plates 32 are arranged perpendicular to the two anchor plates 31. A pad 33 is connected to both the anchor plates 31 and the pressure plates 32, anchored to the cable 5, and 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's worth noting that the main reason for the rounded ends of the pressure plate 32 is to reduce stress concentration, thereby protecting the pressure plate 32 from damage when subjected to stress. If the ends of the pressure plate 32 were designed with right angles or sharp edges, stress would concentrate there, increasing the risk of damage. The rounded ends effectively disperse stress, preventing excessive localized stress and improving the durability and service life of the pressure plate.

[0049] Specifically, the arc design works by reducing stress concentration through streamlined geometry. When the pressure plate 32 is subjected to stress, the arc shape distributes the stress more evenly across the entire plate 32, rather than concentrating it in specific areas. This design not only improves the strength and durability of the pressure plate 32, but also helps maintain its flatness and precision, ensuring its stability and reliability under various operating 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 understood that, as described above, stress concentration occurs near the end of the pressure plate 32. Providing through-holes 311 in this area of ​​the anchor plate 31 disperses the tensile force acting on the anchor plate 31, preventing stress concentration and thus reducing the risk of damage to the anchor plate 31. Furthermore, the provision of through-holes 311 in the anchor plate 31 alters the stress distribution under fatigue loads, thereby modifying the fatigue details of the anchor plate design and significantly improving the fatigue resistance of the structure. Furthermore, the provision of through-holes 311 allows the design cross-section of the anchor plate 31 to meet fatigue requirements to be reduced, thereby saving manufacturing material and improving economic efficiency.

[0052] Preferably, if Figure 6 As shown, the through hole 311 is dumbbell-shaped.

[0053] Specifically, the through hole 311 includes two circular holes 3111 and a rectangular hole 3112 that are spaced apart. The rectangular hole 3112 is located 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 cross-section to meet the fatigue resistance, and has excellent economy.

[0055] In some optional embodiments, 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 via 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, multiple 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 their positions are determined, 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 embodiments, such as Figure 3 As shown, the splicing portion 4 includes a splicing plate 41 and a filling plate 42 .

[0061] It is understandable that the filler 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 gusset plate 21 and a first stiffening plate 22. The gusset 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 including: 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. The anchor box body 1 is provided with an anchor hole for the cable 5 to pass through. The support assembly 6 is provided in the anchor box body 1 and is used to be detachably connected to the anchor box body 1. The support assembly 6 is limitedly engaged with the anchor head of the cable 5.

[0065] It is understood that the support assembly 6 can fit tightly with the anchor head portion of the cable 5, acting as a limiter. This ensures that the central buckle anchor head is fixed in position during operation, preventing the anchor head from loosening under repeated train loading conditions, reducing damage caused by repeated impacts of the anchor head on the anchor box structure, and extending 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 a 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 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 provided on one side of the rear anchor box 2 .

[0071] It is understandable that in actual 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 spaced apart, at least two pressure plates 32 spaced apart, and a pad 33; wherein,

[0073] At least two anchor plates 31 are spaced apart and connected to the rear anchor box 2 via the joint 4. At least two pressure plates 32 are spaced apart and connected to the two anchor plates 31 at both ends, and the pressure plates 32 are arranged perpendicular to the two anchor plates 31. A pad 33 is connected to both the anchor plates 31 and the pressure plates 32, anchored to the cable 5, and 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's worth noting that the main reason for the rounded ends of the pressure plate 32 is to reduce stress concentration, thereby protecting the pressure plate 32 from damage when subjected to stress. If the ends of the pressure plate 32 were designed with right angles or sharp edges, stress would concentrate there, increasing the risk of damage. The rounded ends effectively disperse stress, preventing excessive localized stress and improving the durability and service life of the pressure plate.

[0077] Specifically, the arc design works by reducing stress concentration through streamlined geometry. When the pressure plate 32 is subjected to stress, the arc shape distributes the stress more evenly across the entire plate 32, rather than concentrating it in specific areas. This design not only improves the strength and durability of the pressure plate 32, but also helps maintain its flatness and precision, ensuring its stability and reliability under various operating 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 can be understood that, as mentioned above, the area near the end of the pressure plate 32 is a stress concentration area. The through hole 311 set 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 dumbbell-shaped.

[0081] Specifically, the through hole 311 includes two circular holes 3111 and a rectangular hole 3112 that are spaced apart. The rectangular hole 3112 is located 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 cross-section to meet the fatigue resistance, and has excellent economy.

[0083] In some optional embodiments, 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 via 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, multiple 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 their positions are determined, 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 embodiments, such as Figure 3 As shown, the splicing portion 4 includes a splicing plate 41 and a filling plate 42 .

[0089] It is understandable that the filler 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 gusset plate 21 and a first stiffening plate 22. The gusset plate 21 is detachably connected to the splicing portion 4.

[0091] In summary, the present application sets a central buckle anchor plate structure in the anchor box and provides a close-fitting supporting assembly at the rear end of the central buckle anchor head. The supporting assembly can limit the anchor head, thereby ensuring that the position of the central buckle anchor head is fixed during operation, avoiding the loosening of the anchor head 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. Furthermore, the central buckle anchor plate structure is connected to the main structure by bolts, which is convenient for 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 at the rear of the arc end of the anchor plate pressure plate. This structure can improve the fatigue resistance of the anchor plate, meet the cross-section requirements of fatigue resistance, and has good economy.

[0092] In the description of this application, it should be noted that the terms "upper" and "lower" and the like 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 this application and simplifying the description, and do not indicate or imply 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 this 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 an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this 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 used only 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 terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising 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, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0094] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A central anchor plate for 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 provided 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); The anchor box body (1) comprises: a rear anchor box (2) and at least one front anchor box (3), the rear anchor box (2) being used to be detachably connected to the main beam structure, and the front anchor box (3) being detachably connected to the rear anchor box (2) via a splicing portion (4); The front anchor box (3) comprises: at least two anchor plates (31) arranged at intervals, at least two pressure plates (32) and a pad (33) arranged at intervals, the anchor plates (31) being connected to the rear anchor box (2) via the splicing portion (4), the two ends of the pressure plate (32) being connected to the two anchor plates (31) respectively, and the pressure plate (32) being arranged perpendicularly to the two anchor plates (31), the pad (33) being connected to both the anchor plates (31) and the pressure plate (32), the pad (33) being anchored to the cable (5), and the pad (33) being perpendicular to the axial direction of the cable (5); An arc section is provided at the end where the pressure plate (32) intersects with the anchor plate (31), and a through hole (311) is provided on the anchor plate (31) at the arc section close to the pressure plate (32); The through hole (311) is dumbbell-shaped, comprising two circular holes (3111) and a rectangular hole (3112) arranged at intervals, the rectangular hole (3112) being arranged between the two circular holes (3111), and the length of the rectangular hole (3112) being the same as the thickness of the pressure plate (32).

2. The central anchor plate of a suspension bridge according to claim 1, characterized in that: The supporting assembly (6) comprises a supporting angle plate (61) which is detachably connected to the anchor plate (31) of the front anchor box (3) or the rear anchor box (2) via a connecting plate (62).

3. The central anchor plate of a suspension bridge according to claim 2, characterized in that: A plurality of groups of bolt holes are provided on the anchor plate (31) of the front anchor box (3) and the rear anchor box (2) 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) of the front anchor box (3) and the rear anchor box (2) by bolts.

4. A suspension bridge, characterized in that: include: The central anchor plate according to any one of claims 1 to 3.

Images