Splicing connection structure for tied arch steel structure bridge

Abstract

The invention discloses a splicing connection structure for a tied arch steel structure bridge, and belongs to the field of splicing connection devices.The splicing connection structure comprises an oval opening reinforcing ring, a bolt buckle assembly and a traction assembly, the opening end of the oval opening reinforcing ring is connected with a normal position tongue plate through a locking assembly, and an extending suspension plate is fixed to the side face of the oval opening reinforcing ring; a force releasing assembly is arranged on the side face of the extending suspension plate. Through cooperative arrangement of the supporting shaft rod and the auxiliary supporting ring, after the supporting shaft rod is connected with the extending plate and the bottom supporting plate through the positioning ring, force borne by the joint of the extending suspension plate and the oval opening reinforcing ring can be reduced, and potential safety hazards caused by welding defects under unconventional phenomena are reduced; and meanwhile, points where force is applied to the oval opening reinforcing ring after the extending suspension plate is stressed can be dispersed, the force borne by the oval opening reinforcing ring is further reduced, and local stress can be dispersed through the arc-shaped splicing shaft rods when the local stress of the arch rib is increased.

Description

Technical Field

[0001] This invention relates to the field of splicing and connection devices, and in particular to a splicing and connection structure for tie-arch steel structure bridges. Background Technology

[0002] Tie-arch steel structure bridges combine the principles of arch bridges with the high strength of steel, achieving self-balancing of forces through internal tie rods. They are mainly composed of four parts: arch ribs, tie rods, hangers, and bridge deck system. Existing tie-arch bridges use three types of connection methods between the hangers and the arch ribs: through-type, ear plate type, or pin-hinged connection. The through-type involves directly passing the steel cable through the arch rib and anchoring it above or to the side of the arch. The ear plate type involves welding ear plates onto the arch rib and connecting the hanger to the arch rib with a pin.

[0003] Existing through-type connections are prone to wear at the connection between the steel cable and the arch rib. Furthermore, the concentrated stress at the connection between the steel cable and the arch rib accelerates the metal fatigue of the steel cable, affecting its service life. In contrast, the stress point of the ear plate in the ear plate connection is on one side of the arch rib. The weld between the ear plate and the arch rib is susceptible to potential hazards due to welding defects and other factors, such as natural disasters or overloads, which can affect the safety and stability of the device during use. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of easy wear and accelerated cable fatigue in the through-type connection and the safety hazards caused by welding defects in the ear plate type connection under unconventional conditions in the prior art. Therefore, a splicing connection structure for tied arch steel structure bridges is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A splicing connection structure for a tied-arch steel bridge includes an elliptical opening reinforcing ring, a fastening assembly, and a traction assembly. The open end of the elliptical opening reinforcing ring is connected to a locating tongue plate via a locking assembly. An extended suspension plate is fixed to the side of the elliptical opening reinforcing ring. A force-relieving assembly is provided on the side of the extended suspension plate. A receiving assembly is provided at one end of the extended suspension plate. A fastening assembly is located inside the receiving assembly and is connected via a traction assembly. An extension plate is fixed to the inclined end of the extended suspension plate. A bottom support plate is fixed to the bottom of the elliptical opening reinforcing ring. A reinforcing rib is fixed at the angle between the bottom support plate and the elliptical opening reinforcing ring. Support shafts are inserted into the inner walls of both the extension plate and the bottom support plate. A positioning assembly is provided at the end of each support shaft. An auxiliary support ring is fixed to the opposite ends of the two support shafts. An arc-shaped splicing shaft is inserted into the inner wall of the auxiliary support ring, and a closing assembly is provided at one end of the arc-shaped splicing shaft.

[0007] Preferably, the locking assembly includes a horizontal plate fixed to the opening end of the elliptical opening reinforcing ring, a fastening bolt is inserted into the inner wall of the through hole of the horizontal plate, and one end of the fastening bolt is threaded to the surface of the locating tongue plate.

[0008] Preferably, the stress relief component includes a stress relief groove formed on the side of the extended suspension plate, the stress relief groove being located at one end of the extended suspension plate near the elliptical opening reinforcement ring.

[0009] Preferably, the receiving component includes a horizontal fastening groove formed at one end of the extended suspension plate and a vertical insertion groove formed at the bottom of the extended suspension plate, wherein the horizontal fastening groove and the vertical insertion groove are connected.

[0010] Preferably, the fastener assembly includes a fastening bolt threaded to the inner wall of a horizontal fastening groove and a welding cylinder inserted into the inner wall of a vertical insertion groove. One end of the welding cylinder is fixed with a traction buckle, and the inner wall of the through hole of the traction buckle is sleeved on the side of the fastening bolt.

[0011] Preferably, the traction assembly includes a traction steel cable fused to the inner wall of the welding cylinder.

[0012] Preferably, the positioning component includes a positioning ring sleeved on the side of the support shaft, and the support shaft and the positioning ring are connected by a threaded groove.

[0013] Preferably, the closure assembly includes an expansion disc fixed to one end of the arc-shaped splicing shaft, and one end of the expansion disc has an adapter hole.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. This invention, through the coordinated arrangement of a support shaft and an auxiliary support ring, connects the support shaft to the extension plate and the bottom support plate via a positioning ring. This reduces the force borne at the connection between the extension suspension plate and the elliptical opening reinforcement ring, thereby reducing safety hazards caused by welding defects under unconventional conditions and improving the stability and safety of the device after installation. It also disperses the force exerted on the elliptical opening reinforcement ring by the extension suspension plate. Furthermore, the auxiliary support ring, under the action of the arc-shaped splicing shaft, further reduces the force on the elliptical opening reinforcement ring and disperses localized forces when the arch rib experiences increased localized stress, thus improving the safety and stability of the device.

[0016] 2. This invention utilizes the combination of an elliptical opening reinforcing ring and a locating tongue plate. The elliptical opening reinforcing ring, in conjunction with the elliptical arch rib, offers higher stability under stress compared to a circular reinforcing ring and a circular arch rib. Furthermore, the elliptical structure is better able to withstand greater gravity under torsional forces, preventing wear on the stress points of the traction cable caused by the through-type connection. The locating tongue plate inserted into the arch rib further enhances the stability of the elliptical opening reinforcing ring while dispersing the force exerted locally on the elliptical opening reinforcing ring by the extended suspension plate.

[0017] 3. By strengthening the rib plate and the bottom support plate, the present invention can reduce the deformation of the bottom support plate, making the bridge suspended by the traction steel cable more stable. In addition, the strengthening rib plate can also disperse the force at the connection between the bottom support plate and the elliptical opening reinforcement ring to a certain extent. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a splicing connection structure for a tied-arch steel bridge proposed in this invention;

[0019] Figure 2 This is a side view of a splicing connection structure for a tied-arch steel bridge proposed in this invention;

[0020] Figure 3 This is an exploded structural diagram of the splicing connection structure for a tied-arch steel bridge proposed in this invention.

[0021] Figure 4 This is an exploded structural diagram of the bolted assembly of the splicing connection structure for a tied-arch steel bridge proposed in this invention.

[0022] Figure 5 This is a schematic diagram of the vertical insertion groove of the splicing connection structure for a tied-arch steel bridge proposed in this invention;

[0023] Figure 6 This is a schematic diagram of the arc-shaped splicing axle of a splicing connection structure for a tied-arch steel bridge proposed in this invention.

[0024] In the diagram: 1. Elliptical opening reinforcing ring; 2. Positive positioning tongue plate; 3. Extended suspension plate; 4. Extension plate; 5. Bottom support plate; 6. Reinforcing rib plate; 7. Support shaft; 8. Auxiliary support ring; 9. Arc-shaped splicing shaft; 10. Horizontal plate; 11. Fastening bolt; 12. Stress relief groove; 13. Horizontal fastening groove; 14. Vertical insertion groove; 15. Fastening bolt; 16. Welding cylinder; 17. Traction buckle; 18. Traction cable; 19. Positioning ring; 20. Expansion plate; 21. Adaptor hole. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] Example, refer to Figures 1 to 6 A splicing connection structure for a tied arch steel bridge includes an elliptical opening reinforcing ring 1, a fastening assembly, and a traction assembly. The open end of the elliptical opening reinforcing ring 1 is connected to a locating tongue plate 2 via a locking assembly. Further, the locking assembly includes a horizontal plate 10 fixed to the open end of the elliptical opening reinforcing ring 1. A fastening bolt 11 is inserted into the inner wall of the through hole of the horizontal plate 10, and one end of the fastening bolt 11 is threaded to the surface of the locating tongue plate 2.

[0029] The further advantage of the above is that by rotating the fastening bolt 11, the horizontal plate 10 at the opening end of the elliptical opening reinforcing ring 1 can be brought close to the positioning tongue plate 2. When the fastening bolt 11 is rotated, one end can be inserted into the positioning tongue plate 2 through the thread groove, so that the elliptical opening reinforcing ring 1 can be fastened to the matching elliptical arch rib.

[0030] It is worth noting that one end of the positive tongue plate 2 can be inserted into the elliptical arch rib through the countersunk hole. This technology is existing technology and will not be described in detail here.

[0031] An extended suspension plate 3 is fixed to the side of the elliptical opening reinforcing ring 1. A stress-relieving component is provided on the side of the extended suspension plate 3. Further, the stress-relieving component includes a stress-relieving groove 12 opened on the side of the extended suspension plate 3. The stress-relieving groove 12 is located at one end of the extended suspension plate 3 near the elliptical opening reinforcing ring 1.

[0032] The further advantage of the above is that the stress relief groove 12 can form an X-shaped support structure on the extended suspension plate 3. The X-shaped structure can provide stable support force and dissipate some of the internal stress of the extended suspension plate 3. This technology is existing technology and will not be described in detail here.

[0033] One end of the extended suspension plate 3 is provided with a receiving component. Further, the receiving component includes a horizontal fastening groove 13 opened at one end of the extended suspension plate 3 and a vertical insertion groove 14 opened at the bottom of the extended suspension plate 3. The horizontal fastening groove 13 and the vertical insertion groove 14 are connected.

[0034] The further advantage of the above is that the horizontal fastening groove 13 is used to fix the fastening bolt 15, and the vertical insertion groove 14 is used to place the structural component consisting of the welding cylinder 16 and the traction buckle 17.

[0035] The receiving assembly is provided with a buckle assembly. Further, the buckle assembly includes a fastening rod 15 threaded to the inner wall of the horizontal fastening groove 13 and a welding cylinder 16 inserted into the inner wall of the vertical insertion groove 14. One end of the welding cylinder 16 is fixed with a traction buckle 17, and the inner wall of the through hole of the traction buckle 17 is sleeved on the side of the fastening rod 15.

[0036] A further advantage of the above is that the traction buckle 17, together with the fastening bolt 15, can fix the welding cylinder 16 in the vertical insertion groove 14, so that the traction cable 18 between the two welding cylinders 16 can pull the bridge deck structure.

[0037] It is worth noting that one side of the traction buckle 17 is tightly fitted to one end of the horizontal fastening groove 13 in order to reduce the deformation of the fastening rod 15 and improve the stability of the bridge. This technology is existing technology and will not be described in detail here.

[0038] The buckle assembly is connected to the traction assembly, which further includes a traction cable 18 fused to the inner wall of the welding cylinder 16.

[0039] A further advantage of the above is that the traction cable 18 can suspend the bridge deck by means of the welding cylinder 16 and the traction buckle 17 connected at both ends and the fastening bolt 15.

[0040] An extension plate 4 is fixed to the inclined end of the extension suspension plate 3, a bottom support plate 5 is fixed to the bottom of the elliptical opening reinforcing ring 1, a reinforcing rib 6 is fixed at the angle between the bottom support plate 5 and the elliptical opening reinforcing ring 1, and a support shaft 7 is inserted into the inner wall of both the extension plate 4 and the bottom support plate 5. The end of the support shaft 7 is provided with a positioning component. Further, the positioning component includes a positioning ring 19 sleeved on the side of the support shaft 7, and the support shaft 7 and the positioning ring 19 are connected by a threaded groove.

[0041] The further advantage of the above is that the two support shafts 7 can be fixed on the extension plate 4 and the bottom support plate 5 respectively by means of the positioning ring 19, so that the extension suspension plate 3 can be supported by the support shafts 7, and the force transmitted from the extension suspension plate 3 can be distributed to other points.

[0042] Two support shafts 7 are fixed to opposite ends with auxiliary support rings 8. An arc-shaped splicing shaft 9 is inserted into the inner wall of the auxiliary support ring 8. One end of the arc-shaped splicing shaft 9 is provided with a closing component. Further, the closing component includes an expansion plate 20 fixed to one end of the arc-shaped splicing shaft 9. One end of the expansion plate 20 is provided with an adapter hole 21.

[0043] The further advantage of the above is that the expansion plate 20, in conjunction with the fitting hole 21, can connect the two arc-shaped splicing shafts 9 together. The arc-shaped splicing shafts 9, in conjunction with the auxiliary support ring 8, support the extended suspension plate 3 and enable mutual force assistance between different extended suspension plates 3.

[0044] In use, the elliptical opening reinforcing ring 1 is fitted onto the elliptical arch rib, and the positive tongue plate 2 is inserted into the hole opened on the side of the elliptical arch rib. By rotating the fastening bolt 11, the horizontal plate 10 at the opening end of the elliptical opening reinforcing ring 1 is brought close to the positive tongue plate 2, and the elliptical opening reinforcing ring 1 is fixed on the elliptical arch rib.

[0045] Then, the welding cylinder 16 and the traction buckle 17 at one end of the traction cable 18 are inserted into the vertical insertion slot 14. Then, one end of the fastening rod 15 is inserted into the horizontal fastening slot 13. One end of the fastening rod 15 can penetrate the inner wall of the traction buckle 17 and abut against one end of the horizontal fastening slot 13. The welding cylinder 16 and the traction buckle 17 at the other end of the traction cable 18 can be fixed to the extension suspension plate 3 provided on the side of the bridge plate in the same way.

[0046] The arc-shaped splicing shaft 9 is inserted into the auxiliary support ring 8. The arc-shaped splicing shaft 9 is connected to the adjacent arc-shaped splicing shaft 9 through the adapter hole 21 on the expansion plate 20 at one end. When the adjacent arc-shaped splicing shafts 9 cannot be connected smoothly, the position of the auxiliary support ring 8 can be adjusted by rotating the positioning ring 19 on the support shaft 7 to make the adjacent arc-shaped splicing shafts 9 connect. When the extended suspension plate 3 is subjected to the tension transmitted from the bridge plate through the traction steel cable 18, the extended suspension plate 3 can be supported by the structure composed of the extended plate 4, the bottom support plate 5, the support shaft 7, the auxiliary support ring 8 and the arc-shaped splicing shaft 9. This allows the force on the connection between the extended suspension plate 3 and the elliptical opening reinforcing ring 1 to be distributed to other parts of the elliptical opening reinforcing ring 1.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A splicing connection structure for a tied-arch steel bridge, comprising an elliptical opening reinforcing ring (1), a fastening assembly, and a traction assembly, characterized in that: The open end of the elliptical opening reinforcing ring (1) is connected to a positioning tongue plate (2) via a locking assembly. An extension suspension plate (3) is fixed to the side of the elliptical opening reinforcing ring (1). A force-releasing assembly is provided on the side of the extension suspension plate (3). A receiving assembly is provided at one end of the extension suspension plate (3). A buckle assembly is provided inside the receiving assembly. The buckle assembly is connected via a traction assembly. An extension plate (4) is fixed to the inclined end of the extension suspension plate (3). The bottom of the elliptical opening reinforcing ring (1) is fixed. A bottom support plate (5) is fixed, and a reinforcing rib plate (6) is fixed at the angle between the bottom support plate (5) and the elliptical opening reinforcing ring (1). Support shafts (7) are inserted into the inner walls of the extension plate (4) and the bottom support plate (5). A positioning component is provided at the end of the support shaft (7). An auxiliary support ring (8) is fixed at the opposite end of the two support shafts (7). An arc-shaped splicing shaft (9) is inserted into the inner wall of the auxiliary support ring (8). A closing component is provided at one end of the arc-shaped splicing shaft (9).

2. The splicing connection structure for a tied-arch steel bridge according to claim 1, characterized in that, The locking assembly includes a horizontal plate (10) fixed to the opening end of the elliptical opening reinforcing ring (1), and a fastening bolt (11) is inserted into the inner wall of the through hole of the horizontal plate (10). One end of the fastening bolt (11) is threaded to the surface of the positive tongue plate (2).

3. The splicing connection structure for a tied-arch steel bridge according to claim 1, characterized in that, The stress relief assembly includes a stress relief groove (12) formed on the side of the extended suspension plate (3), the stress relief groove (12) being located at one end of the extended suspension plate (3) near the elliptical opening reinforcing ring (1).

4. The splicing connection structure for a tied-arch steel bridge according to claim 1, characterized in that, The receiving assembly includes a horizontal fastening groove (13) at one end of the extended suspension plate (3) and a vertical insertion groove (14) at the bottom of the extended suspension plate (3), wherein the horizontal fastening groove (13) and the vertical insertion groove (14) are connected.

5. The splicing connection structure for a tied-arch steel structure bridge according to claim 4, characterized in that, The buckle assembly includes a fastening rod (15) threaded to the inner wall of the horizontal fastening groove (13) and a welding cylinder (16) inserted into the inner wall of the vertical insertion groove (14). One end of the welding cylinder (16) is fixed with a traction buckle (17), and the inner wall of the through hole of the traction buckle (17) is sleeved on the side of the fastening rod (15).

6. The splicing connection structure for a tied-arch steel bridge according to claim 5, characterized in that, The traction assembly includes a traction cable (18) fused to the inner wall of the welding cylinder (16).

7. The splicing connection structure for a tied-arch steel structure bridge according to claim 1, characterized in that, The positioning component includes a positioning ring (19) sleeved on the side of the support shaft (7), and the support shaft (7) and the positioning ring (19) are connected by a threaded groove.

8. The splicing connection structure for a tied-arch steel structure bridge according to claim 1, characterized in that, The closing assembly includes an expansion plate (20) fixed to one end of the arc-shaped splicing shaft (9), and an adapter hole (21) is provided at one end of the expansion plate (20).

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