Distributed combined type suspension bridge with balanced stress

Abstract

The invention discloses a distributed combined type suspension bridge with balanced stress. The distributed combined type suspension bridge with balanced stress comprises a fixed main cable saddle, two movable pendulum shaft main cable saddles, a main cable and a polygonal cylinder anchor; the movable pendulum shaft main cable saddle comprises a saddle body, an upper pendulum shaft with a planar bottom, a lower pendulum shaft with an arc-shaped top, a base and a bottom plate, the upper pendulum shaft is arranged at the bottom of the saddle body, the lower pendulum shaft is arranged at the top of the base, and the bottom of the upper pendulum shaft is connected with the top of the lower pendulum shaft; a fixing pin is inserted between the upper pendulum shaft and the lower pendulum shaft, and the upper pendulum shaft swings around the arc-shaped face of the top of the lower pendulum shaft with the fixing pin as the center. A gap is formed between the saddle body and the base; one end of the main cable sequentially passes through the pendulum shaft saddle groove in the movable pendulum shaft main cable saddle on one side, the main cable saddle groove in the fixed main cable saddle and the pendulum shaft saddle groove in the movable pendulum shaft main cable saddle on the other side. The local stress of the main cable is uniform, and a bridge is stable.

Description

Technical Field

[0001] The invention relates to an improvement in a suspension bridge installation technology, belongs to the field of bridges, and in particular to a distributed combined suspension bridge with balanced force. Background Art

[0002] A suspension bridge includes an anchor, a main cable, a main tower, a main cable saddle, and a loose cable saddle. The anchor is mainly used to fix the main cable and provide a foundation for the main cable anchoring. The main cable saddle is used to support the main cable and smoothly change the direction of the main cable. It is generally located on the top of the main tower. At present, a conventional suspension bridge is provided with two left and right main cables. The left and right main cables correspond to two independent sets of main cable saddles, loose cable saddles and two anchor points respectively. Each main cable starts from the longitudinal center point of the bridge to both sides through the main cable saddle and the loose cable saddle and is anchored on the anchor. The anchor is generally divided into gravity anchor and tunnel anchor. Due to the geographical location restrictions of the bridge construction, some suspension bridges can only use rotary anchors to solve this problem. However, the cable saddles installed on the existing rotary anchors are fixed. When the main cable is affected by temperature and wind loads, and the vibration of the car, it is easy to cause the main cable to be locally overstressed, resulting in instability of the bridge, and causing safety accidents to the entire suspension bridge.

[0003] A Chinese patent application with application number CN202410131925.3 and application date January 31, 2024 discloses a saddle system for a revolving main cable suspension bridge and a method for installing a revolving main cable, including a revolving shore anchor, wherein revolving saddles are provided on the central axis and on both sides of the revolving shore anchor, the revolving saddle includes a saddle body, a saddle head is provided on the saddle body, a saddle groove is provided on the saddle head, and the saddle groove of the revolving saddle opens upward. By changing the entry direction of the revolving saddle, the entry directions of the revolving saddle and the conventional saddle are both from top to bottom, and the arrangement of the revolving main cable in each saddle is the same, thereby reducing the workload in design and construction. The above scheme reduces the workload of construction by changing the entry direction of the revolving saddle, but does not solve the problem of excessive local force on the main cable, resulting in instability of the bridge.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of this patent application, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to ordinary technicians in this field. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem in the prior art that the main cable is locally overstressed, resulting in unstable bridges, and to provide a distributed combined suspension bridge in which the main cable is not locally overstressed and the bridge is stable and under balanced force.

[0006] To achieve the above objectives, the technical solution of the present invention is: a force-balanced distributed combined suspension bridge, the force-balanced distributed combined suspension bridge comprising a fixed main cable saddle, two movable swing-axis main cable saddles, a main cable and a polygonal column anchor; The fixed main cable saddle is installed on the top of the polygonal column anchor, and two movable swing shaft main cable saddles are installed on the left and right sides of the polygonal column anchor; A main cable saddle groove is provided on the top of the fixed main cable saddle, a plurality of first baffles arranged in parallel are arranged in the main cable saddle groove, and the main cable is arranged in the gap between two adjacent first baffles; The bottom of the fixed main cable saddle is connected to the top of the saddle body bottom plate, and the bottom of the saddle body bottom plate is connected to the top of the embedded grid, and the embedded grid is embedded in the polygonal column anchor ingot; The main cable saddle groove, all the first partitions and the central plane of the main cable in the horizontal direction of the polygonal cylindrical anchor are parallel; The movable swing shaft main cable saddle comprises a saddle body, an upper swing shaft with a flat bottom, a lower swing shaft with an arc-shaped top, a base and a bottom plate, wherein the upper swing shaft is arranged at the bottom of the saddle body, the lower swing shaft is arranged at the top of the base, and the bottom of the upper swing shaft is connected to the top of the lower swing shaft; A fixing pin is inserted between the upper swing shaft and the lower swing shaft, and the upper swing shaft swings around the arc surface at the top of the lower swing shaft with the fixing pin as the center; There is a gap between the saddle body and the base; The bottom of the base is connected to the top of the bottom plate, the bottom of the bottom plate is embedded in the polygonal column anchor, the top of the saddle body is provided with a swing shaft saddle groove, a plurality of parallel second partitions are arranged in the swing shaft saddle groove, and the main cable is arranged in the gap between two adjacent second partitions; The swing shaft saddle groove, all the second partitions and the central plane of the main cable in the horizontal direction of the polygonal cylindrical anchor are parallel; One end of the main cable passes through a swing shaft saddle groove on a movable swing shaft main cable saddle on one side, a main cable saddle groove on a fixed main cable saddle, and a swing shaft saddle groove on a movable swing shaft main cable saddle on the other side in sequence.

[0007] The base comprises an upper body and a lower body, the bottom of the upper body is connected to the top of the lower body, and the bottom of the lower body is connected to the top of the bottom plate; A mounting groove is provided on the top of the upper seat body, and the lower swing shaft is mounted in the mounting groove.

[0008] The top of the lower seat body is located on the left and right sides of the upper seat body, and bolts are threadedly matched. One end of the bolt passes through the lower seat body and the bottom plate in sequence and is plugged into the polygonal column anchor.

[0009] The length of the upper seat body is smaller than the length of the lower seat body.

[0010] The top of the upper seat body is located at the left and right sides of the lower swing shaft and is equipped with a cushion block, and the top of each cushion block is connected to the bottom of the saddle body; There is a gap between the cushion block and the side surface of the hem shaft.

[0011] An active area is arranged between the upper end of the fixing pin and the upper swing shaft. The upper end of the fixing pin is in a frustum shape, and the length of the upper end increases from top to bottom.

[0012] A longitudinal rib plate is arranged inside the fixed main cable saddle, and the bottom of the longitudinal rib plate is connected to the top of the saddle body bottom plate.

[0013] A plurality of parallel transverse ribs are installed on both sides of the fixed main cable saddle.

[0014] The saddle body bottom plate and the embedded grille are fixed by multiple groups of embedded bolts, and one end of all the embedded bolts sequentially penetrates the saddle body bottom plate and the embedded grille and is plugged into the polygonal column anchor.

[0015] The first partition adopts an integral plate body with a thickness of 5-20 mm.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In a distributed combined suspension bridge with balanced force of the present invention, an upper swing shaft is arranged at the bottom of the saddle body, a lower swing shaft is arranged at the top of the base, and the bottom of the upper swing shaft is connected to the top of the lower swing shaft; a fixing pin is inserted between the upper swing shaft and the lower swing shaft, and the upper swing shaft swings around the arc surface at the top of the lower swing shaft with the fixing pin as the center; there is a gap between the saddle body and the base, and when it is used, one end of the main cable is fixed on a conventional anchor, passes through the top of the main tower of the bridge, surrounds the annular swivel cable saddle of the swivel anchor, passes through the top of the main tower of the bridge, and is finally fixed on the conventional anchor. When the main cable is affected by temperature, wind load, and vibration of automobile driving, the vibration is swung around the fixing pin on the lower swing shaft by the upper swing shaft to a certain angle to adjust the position state of the main cable to achieve internal stress balance, thereby avoiding excessive local force on the main cable and ensuring the balanced force of the main cable and the stability of the bridge structure. Therefore, the main cable of the present invention will not be subjected to excessive local force, and the bridge is stable.

[0017] 2. In a distributed combined suspension bridge with balanced force of the present invention, the main cable saddle groove and all the first partitions are parallel to the central plane of the main cable in the horizontal direction of the polygonal column anchor, and the swing shaft saddle groove and all the second partitions are parallel to the central plane of the main cable in the horizontal direction of the polygonal column anchor. When used, the center line of the saddle groove and the partition surface are parallel to the horizontal reference plane of the main cable at the rotary anchor, ensuring that the main cable force pressure acts on the saddle groove bottom plate and the saddle body support plate. The partition only bears the friction caused by the main cable pressure, but does not directly bear the main cable pressure, which can greatly reduce the partition force, reduce the wear on the partition, and improve the durability of the cable saddle. Therefore, the present invention is safe to use and has a long service life.

[0018] 3. In the distributed combined suspension bridge with balanced force of the present invention, a columnar polygonal anchor is set on one side of the suspension bridge, and a distributed combined cable saddle is adopted, which solves the problem of inconvenience in building the main tower and conventional gravity anchor or tunnel anchor, reduces the engineering cost and construction period, and reduces the construction difficulty accordingly. Therefore, the present invention has low construction cost and low difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the fixed main cable saddle in the present invention.

[0021] Figure 3 It is a schematic diagram of the installation of the fixed main cable saddle in the present invention.

[0022] Figure 4 The present invention Figure 3 Schematic diagram of the structure at A in the middle.

[0023] Figure 5 It is a structural schematic diagram of the movable swing shaft main cable saddle in the present invention.

[0024] Figure 6 It is a connection diagram of the upper swing shaft and the lower swing shaft in the present invention.

[0025] Figure 7 It is a schematic diagram of the installation of the movable swing shaft main cable saddle in the present invention.

[0026] Figure 8 The present invention Figure 7 Schematic diagram of the structure at B in the figure.

[0027] Fig. 9 It is an overall installation schematic diagram of the present invention.

[0028] Fig.10 The present invention Fig. 9 Top view of the .

[0029] In the figure: fixed main cable saddle 1, main cable saddle saddle groove 11, transverse rib plate 12, longitudinal rib plate 13, saddle body bottom plate 14, embedded grid 15, first embedded bolt 16, first partition plate 17, movable swing shaft main cable saddle 2, saddle body 21, upper swing shaft 22, lower swing shaft 23, base 24, bottom plate 25, fixing pin 26, movable area 27, swing shaft saddle groove 28, second partition plate 29, cushion block 290, main cable 3, polygonal column anchor 4, main tower 5, conventional anchor 6. DETAILED DESCRIPTION

[0030] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] See also Figures 1 to 10 , a force-balanced distributed combined suspension bridge, the force-balanced distributed combined suspension bridge comprising a fixed main cable saddle 1, two movable swing-axis main cable saddles 2, a main cable 3 and a polygonal column anchor 4; The fixed main cable saddle 1 is installed on the top of the polygonal column anchor 4, and the two movable swing shaft main cable saddles 2 are installed on the left and right sides of the polygonal column anchor 4; A main cable saddle groove 11 is provided on the top of the fixed main cable saddle 1. A plurality of first baffles 17 arranged in parallel are arranged in the main cable saddle groove 11. The main cable 3 is arranged in the gap between two adjacent first baffles 17. The bottom of the fixed main cable saddle 1 is connected to the top of the saddle body bottom plate 14, and the bottom of the saddle body bottom plate 14 is connected to the top of the embedded grid 15, and the embedded grid 15 is embedded in the polygonal column anchor 4; The main cable saddle groove 11, all the first partitions 17 and the central plane of the main cable 3 in the horizontal direction of the polygonal column anchor 4 are parallel; The movable swing shaft main cable saddle 2 comprises a saddle body 21, an upper swing shaft 22 with a flat bottom, a lower swing shaft 23 with an arc-shaped top, a base 24 and a bottom plate 25. The upper swing shaft 22 is arranged at the bottom of the saddle body 21, the lower swing shaft 23 is arranged at the top of the base 24, and the bottom of the upper swing shaft 22 is connected to the top of the lower swing shaft 23. A fixing pin 26 is inserted between the upper swing shaft 22 and the lower swing shaft 23, and the upper swing shaft 22 swings around the arc surface at the top of the lower swing shaft 23 with the fixing pin 26 as the center. There is a gap between the saddle body 21 and the base 24; The bottom of the base 24 is connected to the top of the bottom plate 25. The bottom of the bottom plate 25 is embedded in the polygonal column anchor 4. The top of the saddle body 21 is provided with a swing shaft saddle groove 28. A plurality of parallel second partitions 29 are arranged in the swing shaft saddle groove 28. The main cable 3 is arranged in the gap between two adjacent second partitions 29. The swing shaft saddle groove 28, all the second partitions 29 are parallel to the central plane of the main cable 3 in the horizontal direction of the polygonal column anchor 4; One end of the main cable 3 passes through the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on one side, the main cable saddle saddle groove 11 on the fixed main cable saddle 1, and the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on the other side.

[0032] The base 24 includes an upper body 241 and a lower body 242. The bottom of the upper body 241 is connected to the top of the lower body 242. The bottom of the lower body 242 is connected to the top of the bottom plate 25. The top of the upper seat body 241 is provided with a mounting groove 243 , and the lower swing shaft 23 is mounted in the mounting groove 243 .

[0033] The top of the lower seat body 242 is located on the left and right sides of the upper seat body 241 and is threaded with bolts. One end of the bolt passes through the lower seat body 242 and the bottom plate 25 in sequence and then is plugged into the polygonal column anchor 4.

[0034] The length of the upper seat body 241 is smaller than the length of the lower seat body 242 .

[0035] The top of the upper seat body 241 is located on both sides of the left and right sides of the lower swing shaft 23, and a cushion block 290 is installed. The top of each cushion block 290 is connected to the bottom of the saddle body 21; There is a gap between the cushion block 290 and the side surface of the lower hem shaft 23 .

[0036] An active area 27 is provided between the upper end of the fixing pin 26 and the upper swing shaft 22 . The upper end of the fixing pin 26 is truncated cone-shaped, and the length of the upper end increases from top to bottom.

[0037] A longitudinal rib plate 13 is provided inside the fixed main cable saddle 1 , and the bottom of the longitudinal rib plate 13 is connected to the top of the saddle body bottom plate 14 .

[0038] A plurality of parallel transverse ribs 12 are installed on both sides of the fixed main saddle 1 .

[0039] The saddle bottom plate 14 and the embedded grid 15 are fixed by multiple sets of embedded bolts 16 , and one end of all the embedded bolts 16 passes through the saddle bottom plate 14 and the embedded grid 15 in sequence and then plugs into the polygonal column anchor 4 .

[0040] The first partition plate 17 is an integral plate with a thickness of 5-20 mm.

[0041] The supplementary description of the present invention is as follows: One end of the main cable 3 is fixed on a conventional anchor 6, passes through the top of the main tower 5 of the bridge, wraps around the polygonal column anchor 4 and turns the cable saddle, passes through the top of the main tower 5 of the bridge, and is finally fixed on the conventional anchor 6. This type of bridge can be used to build a suspension bridge without setting a main tower and conventional gravity anchor or tunnel anchor at one end of the bridge, thereby solving the problem of geological conditions.

[0042] Embodiment 1: A force-balanced distributed combined suspension bridge, the force-balanced distributed combined suspension bridge comprising a fixed main cable saddle 1, two movable swing-shaft main cable saddles 2, a main cable 3 and a polygonal column anchor 4; the fixed main cable saddle 1 is installed on the top of the polygonal column anchor 4, and the two movable swing-shaft main cable saddles 2 are installed on the left and right sides of the polygonal column anchor 4; a main cable saddle saddle groove 11 is opened on the top of the fixed main cable saddle 1, and a plurality of parallel first partitions 17 are arranged in the main cable saddle saddle groove 11, and the main cable 3 is arranged on the opposite sides. The bottom of the fixed main cable saddle 1 is connected to the top of the saddle bottom plate 14, and the bottom of the saddle bottom plate 14 is connected to the top of the embedded grid 15, and the embedded grid 15 is embedded in the polygonal column anchor 4; the main cable saddle saddle groove 11, all the first partitions 17 and the main cable 3 are parallel to the central plane of the polygonal column anchor 4 in the horizontal direction; the movable swing shaft main cable saddle 2 includes a saddle body 21, an upper swing shaft 22 with a flat bottom, a lower swing shaft 23 with an arc surface at the top, and a base 2 4 and the bottom plate 25, the bottom of the saddle body 21 is provided with an upper swing shaft 22, the top of the base 24 is provided with a lower swing shaft 23, the bottom of the upper swing shaft 22 is connected to the top of the lower swing shaft 23; a fixing pin 26 is inserted between the upper swing shaft 22 and the lower swing shaft 23, and the upper swing shaft 22 swings around the arc surface at the top of the lower swing shaft 23 with the fixing pin 26 as the center; there is a gap between the saddle body 21 and the base 24; the bottom of the base 24 is connected to the top of the bottom plate 25, the bottom of the bottom plate 25 is embedded in the polygonal column anchor 4, the saddle body 21 A swing shaft saddle groove 28 is opened on the top, and a plurality of parallel second partitions 29 are arranged in the swing shaft saddle groove 28, and the main cable 3 is arranged in the gap between two adjacent second partitions 29; the swing shaft saddle groove 28 and all the second partitions 29 are parallel to the central plane of the main cable 3 in the horizontal direction of the polygonal column anchor 4; one end of the main cable 3 passes through the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on one side, the main cable saddle saddle groove 11 on the fixed main cable saddle 1, and the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on the other side.

[0043] During application: one end of the main cable 3 passes through the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on one side, the main cable saddle saddle groove 11 on the fixed main cable saddle 1, and the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on the other side in sequence. The pressure of the main cable 3 acts on the saddle groove bottom plate and the saddle body support plate. The partition only bears the friction force caused by the pressure of the main cable, and does not directly bear the pressure of the main cable 3. At the same time, when subjected to pressure, the upper swing shaft 22 swings around the arc surface at the top of the lower swing shaft 23, and the pressure is dispersed by swinging to balance it.

[0044] Embodiment 2: Embodiment 2 is substantially the same as Embodiment 1, except that: The base 24 includes an upper body 241 and a lower body 242. The bottom of the upper body 241 is connected to the top of the lower body 242, and the bottom of the lower body 242 is connected to the top of the bottom plate 25. The top of the upper body 241 is provided with a mounting groove 243, and the lower swing shaft 23 is installed in the mounting groove 243. The top of the lower body 242 is located on the left and right sides of the upper body 241, and bolts are threadedly matched. One end of the bolt passes through the lower body 242 and the bottom plate 25 in sequence and then connects with the polygonal column. The anchor 4 is plugged in; the length of the upper seat body 241 is smaller than that of the lower seat body 242; the top of the upper seat body 241 is located on both sides of the left and right sides of the lower swing shaft 23, and a cushion block 290 is installed, and the top of each cushion block 290 is connected to the bottom of the saddle body 21; there is a gap between the cushion block 290 and the side of the lower swing shaft 23; an active area 27 is provided between the upper end of the fixing pin 26 and the upper swing shaft 22, and the upper end of the fixing pin 26 is truncated cone-shaped, and the length of the upper end thereof increases from top to bottom.

[0045] When in use: the active area 27 between the upper end of the fixing pin 26 and the upper swing shaft 22 ensures that there is space between the upper end of the fixing pin 26 and the saddle body support, so as to ensure that when the saddle body of the loose cable saddle swings, there will be no obstruction between the bottom support of the saddle body and the fixing pin 26, and a limit is formed in the horizontal direction to prevent the saddle body of the loose cable saddle from being separated from the base in special circumstances such as earthquakes.

[0046] Embodiment 3: Embodiment 3 is substantially the same as Embodiment 1, except that: A longitudinal rib plate 13 is arranged in the fixed main cable saddle 1, and the bottom of the longitudinal rib plate 13 is connected to the top of the saddle body bottom plate 14. A plurality of parallel transverse rib plates 12 are installed on both sides of the fixed main cable saddle 1. The saddle body bottom plate 14 and the embedded grid 15 are fixed by a plurality of groups of embedded bolts 16. One end of all the embedded bolts 16 passes through the saddle body bottom plate 14 and the embedded grid 15 in sequence and is plugged into the polygonal column anchor 4. The first partition 17 adopts an integral plate body with a thickness of 5-20 mm.

[0047] When used: the main cable saddle partition adopts an integral partition with a thickness of 5-20mm, which is fixed in the main cable saddle groove by welding or groove fitting.

[0048] Embodiment 4: Embodiment 4 is substantially the same as Embodiment 1, except that: One end of the main cable 3 is fixed to a conventional anchor 6, and the other end passes through the top of the main tower 5 of the bridge, and then passes through the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on one side, the main cable saddle groove 11 on the fixed main cable saddle 1, and the swing shaft saddle groove 28 on the movable swing shaft main cable saddle 2 on the other side, and then passes through the top of the main tower 5 of the bridge, and is finally fixed to the conventional anchor 6.

[0049] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed by the present invention should be included in the protection scope recorded in the claims.

Claims

1. A distributed combined suspension bridge with balanced force, characterized in that: The force-balanced distributed combined suspension bridge comprises a fixed main cable saddle (1), two movable swing-axis main cable saddles (2), a main cable (3) and a polygonal column anchor (4); The fixed main cable saddle (1) is installed on the top of the polygonal column anchor (4), and the two movable swing shaft main cable saddles (2) are installed on the left and right sides of the polygonal column anchor (4); The top of the fixed main cable saddle (1) is provided with a main cable saddle groove (11), a plurality of first baffles (17) arranged in parallel are arranged in the main cable saddle groove (11), and the main cable (3) is arranged in the gap between two adjacent first baffles (17); The bottom of the fixed main cable saddle (1) is connected to the top of the saddle body bottom plate (14), and the bottom of the saddle body bottom plate (14) is connected to the top of the embedded grid (15), and the embedded grid (15) is embedded in the polygonal column anchor (4); The main cable saddle groove (11), all the first partitions (17) and the main cable (3) are parallel to the central plane of the polygonal column anchor (4) in the horizontal direction; The movable swing shaft main cable saddle (2) comprises a saddle body (21), an upper swing shaft (22) with a flat bottom, a lower swing shaft (23) with an arc-shaped top, a base (24) and a bottom plate (25), wherein the upper swing shaft (22) is arranged at the bottom of the saddle body (21), the lower swing shaft (23) is arranged at the top of the base (24), and the bottom of the upper swing shaft (22) is connected to the top of the lower swing shaft (23); A fixing pin (26) is inserted between the upper swing shaft (22) and the lower swing shaft (23), and the upper swing shaft (22) swings around the arc surface at the top of the lower swing shaft (23) with the fixing pin (26) as the center; There is a gap between the saddle body (21) and the base (24); The bottom of the base (24) is connected to the top of the bottom plate (25), the bottom of the bottom plate (25) is embedded in the polygonal column anchor (4), the top of the saddle body (21) is provided with a swing shaft saddle groove (28), a plurality of second partitions (29) arranged in parallel are arranged in the swing shaft saddle groove (28), and the main cable (3) is arranged in the gap between two adjacent second partitions (29); The swing shaft saddle groove (28), all the second partitions (29) and the central plane of the main cable (3) in the horizontal direction of the polygonal column anchor (4) are parallel; One end of the main cable (3) passes through the swing shaft saddle groove (28) on the movable swing shaft main cable saddle (2) on one side, the main cable saddle groove (11) on the fixed main cable saddle (1), and the swing shaft saddle groove (28) on the movable swing shaft main cable saddle (2) on the other side.

2. The force-balanced distributed combined suspension bridge according to claim 1, characterized in that: The base (24) comprises an upper base body (241) and a lower base body (242), the bottom of the upper base body (241) is connected to the top of the lower base body (242), and the bottom of the lower base body (242) is connected to the top of the bottom plate (25); The top of the upper seat body (241) is provided with a mounting groove (243), and the lower swing shaft (23) is mounted in the mounting groove (243).

3. The force-balanced distributed combined suspension bridge according to claim 2, characterized in that: The top of the lower seat body (242) is located on both the left and right sides of the upper seat body (241), and bolts are threadedly matched therewith. One end of the bolt passes through the lower seat body (242) and the bottom plate (25) in sequence and then plugs into the polygonal column anchor (4).

4. The force-balanced distributed combined suspension bridge according to claim 3, characterized in that: The length of the upper seat body (241) is smaller than the length of the lower seat body (242).

5. The force-balanced distributed combined suspension bridge according to claim 4, characterized in that: A cushion block (290) is installed on the top of the upper seat body (241) on both the left and right sides of the lower swing shaft (23), and the top of each cushion block (290) is connected to the bottom of the saddle body (21); There is a gap between the cushion block (290) and the side surface of the lower hem shaft (23).

6. The force-balanced distributed combined suspension bridge according to claim 5, characterized in that: An active area (27) is provided between the upper end of the fixing pin (26) and the upper swing shaft (22); the upper end of the fixing pin (26) is truncated cone-shaped, and the length of the upper end increases from top to bottom.

7. The force-balanced distributed combined suspension bridge according to claim 1, characterized in that: A longitudinal rib plate (13) is provided in the fixed main cable saddle (1), and the bottom of the longitudinal rib plate (13) is connected to the top of the saddle body bottom plate (14).

8. The force-balanced distributed combined suspension bridge according to claim 7, characterized in that: A plurality of parallel transverse rib plates (12) are installed on both sides of the fixed main cable saddle (1).

9. The force-balanced distributed combined suspension bridge according to claim 1, characterized in that: The saddle body bottom plate (14) and the embedded grille (15) are fixed by means of a plurality of sets of embedded bolts (16), one end of each of the embedded bolts (16) sequentially passes through the saddle body bottom plate (14) and the embedded grille (15) and is then plugged into the polygonal column anchor (4).

10. The force-balanced distributed combined suspension bridge according to claim 1, characterized in that: The first partition plate (17) is an integral plate with a thickness of 5-20 mm.

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