Main cable saddle of self-anchored suspension bridge
By designing a detachable disassembly and installing disassembly ring on the main rope saddle, the problem of waste of steel resources in the existing main rope saddle is solved, and the effect of saving steel is achieved, while improving the strength and safety of the structure.
Patent Information
- Application Number
- CN202420793140.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-16
- Publication Date
- 2025-05-27
- Estimated Expiration
- 2034-04-16
AI Technical Summary
The existing main rope saddle needs to reserve multiple hanging rings connected to the kilogram rope, resulting in waste of steel resources.
The main cable saddle of a self-anchored suspension bridge is designed, and a removable disassembly and fixing of the suspension ring is achieved through the cooperation of the bolt hole and the lock seat plug.
No need to reserve a lifting ring, which saves steel resources, and the design of the dismantling lifting ring avoids additional holes, improving the overall strength and safety of the structure.
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Figure CN222908544U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of suspension bridges, in particular to a main cable saddle of a self-anchored suspension bridge. Background Technique
[0002] A self-anchored suspension bridge is a suspension bridge system that does not have a gravity anchor but anchors the main cable at the end of the stiffening girder to bear the horizontal and vertical components of the end of the main cable. Its difference from a conventional ground-anchored suspension bridge lies in that there is no ground anchor, and the stiffening girder bears the horizontal component of the main cable, resulting in a large axial pressure on the main girder. The self-anchored suspension bridge also has all the advantages of a conventional ground-anchored suspension bridge. It also uses a cable or chain that can bear tension as the main load-bearing member and is composed of main components such as a suspension cable, a cable tower, a cable saddle, an anchor (the end anchor of the girder, rather than a ground anchor), a suspender, and a bridge deck. The main load-bearing member is the suspension cable, which mainly bears tension and is generally made of high-tensile-strength steel (steel wires, steel strands, steel cables, etc.).
[0003] The main cable saddle is the main component directly bearing the strong pressure of the main cable at the top of the cable tower of the suspension bridge. Its function is to evenly transfer the strong pressure of the main cable to the cable tower. The pressure between the saddle of the main cable saddle and the top of the cable tower is usually transferred in a grid manner, and the shear force is transferred longitudinally by setting constraints between the saddle and the bridge tower.
[0004] The existing Chinese patent with the publication number CN109098089A discloses a hoisting device and construction method for the main cable saddle at the top of the cable tower of a suspension bridge, including a pre-embedded cross beam and a stabilizing longitudinal beam embedded in the tower column. At the upper end of the connection between the pre-embedded cross beam and the stabilizing longitudinal beam, a triangular support is fixedly connected. At the upper end of the triangular support, a Bailey frame is fixedly connected. At equal intervals on the upper end of the Bailey frame, a plurality of track sleepers are fixedly arranged. At the upper end of the track sleepers, a crane heavy rail is fixedly connected. On the upper end of the crane heavy rail, a traveling crane is arranged. On the upper end of the traveling crane, a winch is carried. A steel wire rope is wound around the drum of the winch. The lower end of the steel wire rope is connected to a single-door pulley. The single-door pulley is connected to the steel wire rope through a bearing roller. The hook at the lower end of the single-door pulley is connected to a hoisting rope, and the lower end of the hoisting rope is hung with a main cable saddle.
[0005] The above-mentioned existing technical solution has the following defects: The existing main cable saddle needs to reserve a plurality of lifting rings connected to the hoisting ropes. Generally speaking, the lifting rings on the main cable saddle are only needed during the hoisting construction. Fixing lifting rings on the main cable saddle is not conducive to saving steel resources. Content of the Utility Model
[0006] The problem to be solved by the utility model is to provide a main cable saddle of a self-anchored suspension bridge for the above-mentioned deficiencies in the prior art, which solves the technical problem of not being conducive to saving steel resources in the prior art.
[0007] The above-mentioned utility model object of the present utility model is achieved through the following technical solutions: A main cable saddle of a self-anchored suspension bridge, including a saddle head with a saddle groove opened on the top surface, a saddle plate arranged below the saddle head, and a saddle seat arranged below the saddle plate. Bolt holes are opened on the top surface of the saddle seat, and disassembly lifting rings are arranged on the bolt holes. The disassembly lifting ring includes a lock seat insertion post that is inserted and matched with the bolt hole and has a column inner groove inside, a lower lock seat support plate arranged at the bottom of the outer side wall of the lock seat insertion post, a clip guiding hole penetrating through the middle of the outer side wall of the lock seat insertion post, an upper lock seat clip slidably arranged in the clip guiding hole, and a clip pushing and pulling assembly arranged in the column inner groove. An out rod hole is penetrated through the top surface of the lock seat insertion post. The clip pushing and pulling assembly includes a central rotary rod rotatably arranged in the column inner groove and having a top portion extending out of the column inner groove through the out rod hole, a central hinge disc coaxially arranged in the middle of the central rotary rod, and hinge connecting rods with two ends respectively hinged to the upper lock seat clip and the central hinge disc. An installation platform is arranged after the top portion of the central rotary rod extends out of the out rod hole, and a lifting ring is arranged on the installation platform.
[0008] The present utility model is further arranged as: An outer hinge plate is arranged on the end surface of the upper lock seat clip close to the column inner groove. Outer hinge shafts are arranged on the upper and lower end surfaces of the outer hinge plate. Inner hinge shafts corresponding to each outer hinge shaft are arranged on the upper and lower end surfaces of the central hinge disc. One end of the hinge connecting rod is hinged to the outer hinge plate through the outer hinge shaft, and the other end is hinged to the central hinge disc through the inner hinge shaft.
[0009] The present utility model is further arranged as: The number of hinge connecting rods between the central hinge disc and each outer hinge plate is two, and the two hinge connecting rods are symmetrically arranged on the upper and lower sides of the central hinge disc.
[0010] The present utility model is further arranged as: An upper stabilizer rod guiding disc is coaxially arranged on the upper part of the central rotary rod. The upper stabilizer rod guiding disc is rotationally matched with the column inner groove, and the top surface of the upper stabilizer rod guiding disc abuts against the top wall of the column inner groove.
[0011] The present utility model is further arranged as: A lock disc threaded hole is opened on the side wall of the upper stabilizer rod guiding disc. A lock disc through hole aligned with the lock disc threaded hole is penetrated through the outer side wall of the lock seat insertion post. A hand-tightening screw threadedly connected to the lock disc threaded hole is penetrated through the lock disc through hole.
[0012] The present utility model is further arranged as: A lower stabilizer rod guiding disc is coaxially arranged at the bottom of the central rotary rod. The lower stabilizer rod guiding disc is rotationally matched with the column inner groove, and the bottom surface of the lower stabilizer rod guiding disc abuts against the bottom wall of the column inner groove.
[0013] The present utility model is further arranged as: A connection threaded hole is opened on the top surface of the installation platform. The lifting ring includes a ring body and a connection column arranged below the ring body and threadedly connected to the connection thread.
[0014] The present utility model is further configured such that: on the top surface of the saddle, multiple pairs of reinforcing rib plates are vertically arranged, the reinforcing rib plates are connected to the saddle head and the saddle plate, and the reinforcing rib plates support the saddle head.
[0015] The present utility model is further configured such that: on the top surface of the saddle, multiple reinforcing rib plates are vertically arranged, and the reinforcing rib plates are arranged between adjacent reinforcing rib plates.
[0016] In summary, the beneficial technical effects of the present utility model are as follows: the main cable saddle of the self-anchored suspension bridge of the present utility model is provided with detachable lifting rings that can be disassembled and assembled, so that the main cable saddle does not need to reserve lifting rings, which is beneficial to saving steel resources, and the detachable lifting rings do not need to be additionally drilled for installation. Description of the Drawings
[0017] Figure 1 is a sectional structure diagram of the main cable saddle of the self-anchored suspension bridge in the present utility model;
[0018] Figure 2 is a partial sectional structure diagram of the saddle and the detachable lifting ring in the present utility model;
[0019] Figure 3 is a structural schematic diagram of the detachable lifting ring in the present utility model;
[0020] Figure 4 is a structural schematic diagram of the detachable lifting ring with the lock seat plug and the lifting ring removed in the present utility model;
[0021] Figure 5 is a structural schematic diagram of the lifting ring in the present utility model.
[0022] In the above-mentioned drawings: 1. Saddle head; 2. Saddle groove; 3. Saddle plate; 4. Saddle; 5. Bolt hole; 6. Reinforcing rib plate; 7. Reinforcing rib; 8. Detachable lifting ring; 9. Lock seat plug; 91. Half column; 10. Inner groove of the column; 11. Lower lock seat support plate; 12. Clip guiding hole; 13. Upper lock seat clip; 14. Outer hinge plate; 15. Outer hinge shaft; 16. Central rotary rod; 17. Upper stabilizer rod guiding disc; 18. Lower stabilizer rod guiding disc; 19. Rod outlet hole; 20. Installation platform; 21. Connecting threaded hole; 22. Lifting ring; 221. Ring body; 222. Connecting column; 23. Central hinge disc; 24. Inner hinge shaft; 25. Hinge connecting rod; 26. Lock disc threaded hole; 27. Lock disc perforation; 28. Hand-tightening screw. Detailed Embodiments
[0023] In order to make the technical means, creative features, achieved purposes and functions of the present utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the drawings and specific embodiments.
[0024] As Figure 1As shown in the figure, the present utility model proposes a main cable saddle for a self-anchored suspension bridge, which includes a saddle head 1, a saddle plate 3, and a saddle seat 4. The saddle head 1 is U-shaped, and a saddle groove 2 is provided on the top surface of the saddle head 1. The saddle plate 3 is integrally connected below the saddle head 1, and the saddle plate 3 is vertically arranged. The saddle seat 4 is integrally connected below the saddle plate 3, and a plurality of pairs of bolt holes 5 are provided in parallel on the top surface of the saddle seat 4.
[0025] As Figure 1 shown, a plurality of pairs of reinforcing rib plates 6 are vertically arranged on the top surface of the saddle seat 4. Each pair of reinforcing rib plates 6 is parallel to each other. The reinforcing rib plates 6 are connected to the saddle head 1 and the saddle plate 3. The reinforcing rib plates 6 support the saddle head 1, which is beneficial to improving the structural strength of the main cable saddle and enabling the saddle head 1 to stably bear the acting force from the suspension cable.
[0026] As Figure 1 shown, a reinforcing rib plate 7 is provided on the top surface of the saddle seat 4. The reinforcing rib plate 7 is fixedly connected between adjacent reinforcing rib plates 6. Six reinforcing rib plates 7 are provided between each pair of reinforcing rib plates 6, and the six reinforcing rib plates 7 are arranged symmetrically in a three-three pattern. By providing the reinforcing rib plate 7, it is beneficial to improve the connection strength between adjacent reinforcing rib plates 6 and also improve the connection strength between the reinforcing rib plates 6 and the saddle seat 4, thereby improving the structural strength of the main cable saddle.
[0027] As Figure 2 and 3 shown, a disassembly lifting ring 8 is provided on the bolt hole 5. The disassembly lifting ring 8 includes a cylindrical lock seat plug post 9. The lock seat plug post 9 is inserted and matched with the bolt hole 5. The interior of the lock seat plug post 9 has a column inner groove 10. The cross-section of the column inner groove 10 is circular. The lock seat plug post 9 is formed by welding a pair of semi-cylindrical half columns 91, and the column inner groove 10 is half-opened on the two half columns 91.
[0028] As Figure 2 and 3 shown, a lower lock seat support plate 11 is fixedly connected to the bottom of the outer wall of the lock seat plug post 9. The cross-section of the lower lock seat support plate 11 is circular. The lower lock seat support plate 11 is half-arranged on the two half columns 91. When the disassembly lifting ring 8 is installed on the saddle seat 4, the top surface of the lower lock seat support plate 11 abuts against the bottom surface of the saddle seat 4, and at this time, the downward movement of the main cable saddle is restricted.
[0029] As Figure 2 and 3 shown, a clamp piece guide hole 12 is provided on the outer wall of the lock seat plug post 9. The cross-section of the clamp piece guide hole 12 is rectangular. The number of clamp piece guide holes 12 is four, and the four clamp piece guide holes 12 are equally spaced in a circular pattern with the central axis of the lock seat plug post 9 as the center. Two aligned clamp piece guide holes 12 are half-opened on the two half columns 91.
[0030] As Figure 2 and 4As shown, a locking seat clip 13 is slidably arranged in each clip guide hole 12. The locking seat clip 13 is a rectangular sheet. An outer hinge plate 14 is fixedly connected to the end face of the locking seat clip 13 close to the column inner groove 10. The upper and lower end faces of the outer hinge plate 14 are fixedly connected to the outer hinge shaft 15.
[0031] like Figure 2 and 4 As shown, a clip push-pull assembly is provided in the column inner groove 10, and the clip push-pull assembly can push or pull the upper locking seat clip 13, thereby driving the upper locking seat clip 13 to perform reciprocating linear motion along the clip guide hole 12. When the clip push-pull assembly pushes the upper locking seat clip 13 away from the end of the column inner groove 10 to extend out of the clip guide hole 12, the bottom surface of the upper locking seat clip 13 abuts against the top surface of the saddle 4, and the upper locking seat clip 13 cooperates with the lower locking seat support plate 11, so that the disassembly ring 8 can be fixed on the saddle 4; when the clip push-pull assembly pulls the end of the upper locking seat clip 13 away from the column inner groove 10 to retract into the clip guide hole 12, the disassembly ring 8 can be removed from the saddle 4.
[0032] like Figure 2 and 4 As shown, the clip push-pull assembly includes a central rotating rod 16 , a central hinge plate 23 , and a hinge connecting rod 25 .
[0033] like Figure 2 and 4 As shown, the center rotating rod 16 is in the shape of a round rod, and the center rotating rod 16 is rotatably arranged at the center of the column inner groove 10. An upper stabilizer rod guide plate 17 is coaxially arranged on the upper part of the center rotating rod 16, and the upper stabilizer rod guide plate 17 is located above the clip guide hole 12, and the top surface of the upper stabilizer rod guide plate 17 abuts against the top wall of the column inner groove 10. A lower stabilizer rod guide plate 18 is coaxially arranged on the bottom of the center rotating rod 16, and the lower stabilizer rod guide plate 18 is located below the clip guide hole 12, and the bottom surface of the lower stabilizer rod guide plate 18 abuts against the bottom wall of the column inner groove 10. The upper stabilizer rod guide plate 17 and the lower stabilizer rod guide plate 18 are both rotatably matched with the column inner groove 10, so that the center rotating rod 16 can rotate relatively stably, and by setting the upper stabilizer rod guide plate 17 and the lower stabilizer rod guide plate 18, the center rotating rod 16 is limited from axial runout.
[0034] like Figure 2 and 4 As shown, a rod hole 19 is provided on the top surface of the lock seat plug column 9, the rod hole 19 is connected to the column inner groove 10, the cross section of the rod hole 19 is circular, and the rod hole 19 is coaxial with the column inner groove 10, and the rod hole 19 is opened in half on two half columns 91. The top of the central rotating rod 16 extends out of the column inner groove 10 through the rod hole 19, and the central rotating rod 16 rotates with the rod hole 19. After the central rotating rod 16 passes through the rod hole 19, it is coaxially fixedly connected to the mounting platform 20, and a connecting threaded hole 21 is provided at the center of the top surface of the mounting platform 20.
[0035] As Figure 4 and 5 shown, a lifting ring 22 is provided on the installation table 20. The lifting ring 22 includes a ring body 221 and a connecting column 222. The ring body 221 is circular, and the connecting column 222 is integrally connected to the lower part of the ring body 221. The connecting column 222 is in threaded fit with the connecting threaded hole 21.
[0036] As Figure 2 and 4 shown, a central hinge disc 23 is coaxially and fixedly connected to the middle of the central rotating rod 16. The cross-section of the central hinge disc 23 is circular. The central hinge disc 23 and the four clip guide holes 12 are coplanar in the horizontal direction. Four inner hinge shafts 24 are equidistantly arranged in a circumferential manner on the upper and lower end faces of the central hinge disc 23.
[0037] As Figure 2 and 4 shown, one end of the hinge connecting rod 25 is hinged to the outer hinge plate 14 through the outer hinge shaft 15, and the other end is hinged to the central hinge disc 23 through the inner hinge shaft 24. The number of hinge connecting rods 25 between the central hinge disc 23 and each outer hinge plate 14 is two. The two hinge connecting rods 25 are symmetrically arranged on both sides of the central hinge disc 23. Two hinge connecting rods 25 are arranged between the central rotating rod 16 and the upper lock seat clip 13, which is beneficial to improving the connection stability between the central rotating rod 16 and the upper lock seat clip 13.
[0038] As Figure 2 and 4 shown, a lock disc threaded hole 26 is formed on the side wall of the upper stabilizer rod guide disc 17, and a lock disc through hole 27 is formed through the outer side wall of the lock seat plug 9. The lock disc through hole 27 is a circular hole. The lock disc through hole 27 is located above the clip guide hole 12. The lock disc through hole 27 and the lock disc threaded hole 26 are coplanar in the horizontal direction. When the upper stabilizer rod guide disc 17 rotates, the lock disc threaded hole 26 can be aligned with the lock disc through hole 27.
[0039] As Figure 2 and 4 shown, a hand-tightening screw 28 that is in threaded fit with the lock disc threaded hole 26 is inserted into the lock disc through hole 27. When the hand-tightening screw 28 is in threaded connection with the lock disc threaded hole 26, the upper stabilizer rod guide disc 17, the central rotating rod 16, and the lower stabilizer rod guide disc 18 are restricted from rotating.
[0040] In this embodiment, the detailed installation process of disassembling the lifting ring 8 is as follows:
[0041] S1: When the main cable saddle is transported to the area to be lifted, first perform the padding treatment. Then, the worker passes the lock seat plug 9 through the bolt hole 5 from bottom to top until the top surface of the lower lock seat support plate 11 abuts against the bottom surface of the saddle 4;
[0042] S2: The worker rotates the central swivel rod 16 and the central hinge disc 23 through the mounting table 20. When the central hinge disc 23 rotates, it will drive the upper lock seat clip 13 to move away from the central swivel rod 16 through the hinge connecting rod 25 until the upper lock seat clip 13 slides out of the clip guide hole 12. The worker screws the hand-tightening screw 28 through the lock disc perforation 27 and threadedly connects it to the lock disc threaded hole 26. The upper stabilizer rod guide disc 17, the central swivel rod 16, and the lower stabilizer rod guide disc 18 are restricted from rotating, so the upper lock seat clip 13 remains in the state of sliding out of the clip guide hole 12. The bottom surface of the upper lock seat clip 13 abuts against the top surface of the saddle 4, and the upper lock seat clip 13 and the lower lock seat support plate 11 cooperate to fix the dismountable sling 8 to the saddle 4.
[0043] S3: The worker threadedly mates the connecting column 222 with the connecting threaded hole 21 to install the sling 22 on the mounting table 20.
[0044] By providing a dismountable sling 8 on the main cable saddle of this self-anchored suspension bridge, it is not necessary to reserve the sling 22 on the main cable saddle, which is beneficial to saving steel resources, and the dismountable sling 8 does not need to be additionally drilled for installation.
[0045] Key points for safety control during the hoisting of the main cable saddle:
[0046] (1) Before hoisting the main cable saddle, it is necessary to do a trial hoisting and hoist it strictly according to the hoisting amplitude in the plan. When the hoisting amplitudes are inconsistent, it is necessary to re-check the performance table of the truck crane and select a suitable crane.
[0047] (2) Set up a working platform on the top of the tower. The guardrail of the working platform should be firm and the height should not be less than 1.2 m.
[0048] (3) When constructing the main cable saddle, safety belts should be worn and hung at a safe and reliable place.
[0049] (4) If there is an aviation height limit in this project, when hoisting the main cable saddle, it is necessary to report to the aviation department in advance and construct according to the requirements of the aviation department.
[0050] (5) Set up a warning area in the construction area of the main cable saddle hoisting. During the hoisting process, no one should stand or pass under the components. Set up a ground safety passage and install a protective shed for the operating winch.
[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.
Claims
1. A main cable saddle of a self-anchored suspension bridge, comprising a saddle head (1) with a saddle groove (2) on the top surface, a saddle plate (3) arranged below the saddle head (1), and a saddle seat (4) arranged below the saddle plate (3), wherein a bolt hole (5) is arranged on the top surface of the saddle seat (4), characterized in that: The bolt hole (5) is provided with a disassembly lifting ring (8), and the disassembly lifting ring (8) comprises a lock seat plug post (9) which is plugged into and matched with the bolt hole (5) and has a column inner groove (10) inside, a lower lock seat support plate (11) arranged at the bottom of the outer wall of the lock seat plug post (9), a clip guide hole (12) extending through the middle of the outer wall of the lock seat plug post (9), an upper lock seat clip (13) slidably arranged in the clip guide hole (12), and a clip push-pull assembly arranged in the column inner groove (10). The top surface of the lock seat plug post (9) is provided with a The rod outlet hole (19), the clip push-pull assembly comprises a central rotating rod (16) rotatably arranged in the column inner groove (10) and the top of which protrudes out of the column inner groove (10) through the rod outlet hole (19), a central hinge plate (23) coaxially arranged in the middle of the central rotating rod (16), and a hinge connecting rod (25) with two ends respectively hinged to the upper locking seat clip (13) and the central hinge plate (23); a mounting platform (20) is arranged after the top of the central rotating rod (16) protrudes out of the rod outlet hole (19), and a lifting ring (22) is arranged on the mounting platform (20).
2. The main cable saddle of a self-anchored suspension bridge according to claim 1, characterized in that: An outer hinge plate (14) is arranged on the end surface of the locking seat clip (13) close to the column inner groove (10), and outer hinge shafts (15) are arranged on the upper and lower end surfaces of the outer hinge plate (14). An inner hinge shaft (24) is arranged on the upper and lower end surfaces of the central hinge plate (23) corresponding to each outer hinge shaft (15), and one end of the hinge connecting rod (25) is hinged to the outer hinge plate (14) through the outer hinge shaft (15), and the other end is hinged to the central hinge plate (23) through the inner hinge shaft (24).
3. The main cable saddle of a self-anchored suspension bridge according to claim 2, characterized in that: There are two hinged connecting rods (25) between the central hinge plate (23) and each outer hinge plate (14), and the two hinged connecting rods (25) are symmetrically arranged on the upper and lower sides of the central hinge plate (23).
4. The main cable saddle of a self-anchored suspension bridge according to claim 1, characterized in that: An upper stabilizing rod guide plate (17) is coaxially arranged on the upper part of the central rotating rod (16). The upper stabilizing rod guide plate (17) is rotatably matched with the column inner groove (10), and the top surface of the upper stabilizing rod guide plate (17) abuts against the top wall of the column inner groove (10).
5. The main cable saddle of a self-anchored suspension bridge according to claim 4, characterized in that: A locking disk threaded hole (26) is provided on the side wall of the upper stabilizer rod guide plate (17), a locking disk through hole (27) aligned with the locking disk threaded hole (26) is provided through the outer wall of the lock seat plug column (9), and a hand screw (28) threadedly connected to the locking disk threaded hole (26) is provided in the locking disk through hole (27).
6. The main cable saddle of a self-anchored suspension bridge according to claim 1, characterized in that: A lower stabilizer rod guide plate (18) is coaxially arranged at the bottom of the central rotating rod (16). The lower stabilizer rod guide plate (18) is rotatably matched with the column inner groove (10), and the bottom surface of the lower stabilizer rod guide plate (18) abuts against the bottom wall of the column inner groove (10).
7. The main cable saddle of a self-anchored suspension bridge according to claim 1, characterized in that: A connecting threaded hole (21) is provided on the top surface of the mounting platform (20), and the hanging ring (22) comprises a ring body (221) and a connecting column (222) disposed below the ring body (221) and threadedly connected to the connecting thread.
8. The main cable saddle of a self-anchored suspension bridge according to claim 1, characterized in that: A plurality of pairs of reinforcing ribs (6) are vertically arranged on the top surface of the saddle (4); the reinforcing ribs (6) are connected to the pommel (1) and the saddle plate (3); and the reinforcing ribs (6) support the pommel (1).
9. The main cable saddle of a self-anchored suspension bridge according to claim 1, characterized in that: A plurality of reinforcing rib plates (7) are vertically arranged on the top surface of the saddle (4), and the reinforcing rib plates (7) are arranged between adjacent reinforcing rib plates (6).
Citation Information
Patent Citations
A suspension bridge pylon top main cable saddle hoist device and construction method
CN109098089A