Novel structural bridge

Abstract

The utility model relates to the technical field of cable-stayed bridges, in particular to a novel structural bridge. The flow guide grooves and the turbulent flow pits can destroy the formation of waterlines and axial flows, so that the waterlines and the axial flows formed on the surface of the stay cable can be destroyed, and the occurrence frequency and amplitude of wind and rain induced vibration can be obviously reduced by destroying the flowing modes, so that the safety of the stay cable in windy and rainy days is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge structures, and specifically relates to a bridge with a novel structure. Background Art

[0002] A cable-stayed bridge is a bridge structure in which the main beam is directly pulled on the cable tower by many stay cables. This bridge structure system is composed of a compression-bearing tower, tensioned cables, and a bending-bearing beam body, and can be regarded as a multi-span elastic support continuous beam with stay cables replacing piers.

[0003] In the patent CN213389673U, a modular cable-stayed bridge is disclosed, which includes segmental main beams and segmental main towers. The segmental main beams are welded together to form the bridge body, the outer tower wall modules of the main tower are aligned and top-welded with the main beam production modules to form the tower-beam consolidation module, and the stay cable anchorage system production modules on the segmental main beams are connected with the anchorage system production modules on the tower by stay cables. By adopting the modular cable-stayed bridge proposed by the utility model, the idea of industrial production is realized, the bridge length can be conveniently adjusted by changing the number of modules, and the bridge width can be adjusted by changing the wing beam size. Although this bridge is applicable to industrial production, in the actual use process, the smooth surface of the stay cables of this bridge can form water lines and axial flows in windy and rainy weather, which will cause large-amplitude vibrations of the cable-stayed bridge, resulting in greater potential safety hazards for the cable-stayed bridge. Therefore, it is urgent to solve. Content of the Utility Model

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides a bridge with a novel structure. The utility model can effectively improve the stability of the cable-stayed bridge in windy and rainy weather.

[0005] To achieve the above object, the utility model provides the following technical solutions:

[0006] A bridge with a novel structure includes a main bridge spanning across a river, and one end of the main bridge is connected to a road on one side of the river; the other end of the main bridge is supported on a bearing pier located on the side of the river, and is connected to a side bridge fixed on the bearing pier at the same time. The other end of the side bridge is connected to a road on the other side of the river; a vertically arranged cable tower is installed on the support pier, and both sides of the cable tower are connected to the main bridge and the side bridge through multiple single-row stay cables; the side bridge is shorter than the main bridge, and a counterweight block for balancing with the main bridge is arranged on the side bridge; and a flow disturbance component for suppressing wind and rain-induced vibration is arranged on the stay cables.

[0007] As a further scheme of the utility model: the flow disturbance component includes spiral-shaped diversion grooves extending along the length direction of the stay cables and opened on the surface of the stay cable protection sleeve, and each diversion groove is uniformly arranged in sequence around the circumference of the protection sleeve.

[0008] As a further solution of the utility model: spoiler pins extending towards the notch of the diversion channel are arranged on the bottom base of the diversion channel, and the spoiler pins in the same diversion channel are arranged at equal intervals in sequence along the length direction of the diversion channel.

[0009] As a further solution of the utility model: spoiler pits are also formed on the surface of the protective sleeve, and the spoiler pits are arranged along the length direction of the diversion channel.

[0010] As a further solution of the utility model: the main bridge includes a main span main beam and main span wing plates symmetrically arranged on both sides of the main span main beam, and the upper plate surface of the main span wing plates constitutes a road surface for vehicle passage.

[0011] As a further solution of the utility model: one end of the main span wing plate close to the river bank is supported and fixed at the top of the main span bridge pier, and the bottom end of the main span bridge pier is fixed on the ground.

[0012] As a further solution of the utility model: the side bridge includes a side span main beam and side span wing plates symmetrically arranged on both sides of the side span main beam, and the upper plate surface of the side span wing plates constitutes a road surface for vehicle passage.

[0013] As a further solution of the utility model: one end of the side span wing plate close to the river bank is supported and fixed at the top of the side span bridge pier, and the bottom end of the side span bridge pier is fixed on the ground.

[0014] As a further solution of the utility model: a hollow cavity is arranged inside the side span main beam, and a counterweight block is fixedly installed in the hollow cavity; the counterweight block is a solidified concrete block.

[0015] As a further solution of the utility model: the stay cables include main span stay cables connecting the cable tower and the main span main beam, and side span stay cables connecting the cable tower and the side span main beam; each main span stay cable is parallel in sequence along the length direction of the main span main beam, and each main span stay cable is located on the same axial symmetry plane of the main span main beam; each side span stay cable is parallel in sequence along the length direction of the side span main beam, and each side span stay cable is located on the same axial symmetry plane of the side span main beam; each side span stay cable and each main span stay cable are located in the same plane.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The diversion channel and the spoiler pits can destroy the formation of the water line and the axial flow, so as to be able to destroy the water line and the axial flow formed on the surface of the stay cable. By destroying these flow patterns, the occurrence frequency and amplitude of the wind and rain induced vibration can be significantly reduced, thereby improving the safety of the stay cable in windy and rainy weather.

[0018] 2. Install spoiler pins in the diversion trough, so as to intermittently block the flowing liquid in the diversion trough in rainy and windy weather, thereby further blocking the formation of water lines and axial flows in the diversion trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0020] Figure 2 It is a schematic diagram of the split structure of the counterweight and the side-span main girder in the present utility model.

[0021] Figure 3 It is a schematic diagram of the structure of the protective sleeve in the present utility model.

[0022] In the figure: 1. Main bridge; 11. Main-span main girder; 12. Main-span wing plate; 13. Main-span stay cable; 14. Main bridge pier; 2. Side bridge; 21. Side-road main girder; 22. Side-road wing plate; 23. Side-road stay cable; 24. Side bridge pier; 25. Counterweight; 3. Cable tower; 31. Bearing bridge pier; 4. Protective sleeve; 41. Diversion trough; 42. Flow-blocking pin; 43. Spoiler pit. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1 to 3 , in the embodiment of the present utility model, a new type of structure bridge includes a main bridge 1 spanning across a river, and one end of the main bridge 1 is connected to the road on one side of the river channel, and the other end of the main bridge 1 is supported on a bearing bridge pier 31 located on the side of the river channel and is connected to a side bridge 2 fixed to the bearing bridge pier 31 at the same time. The main bridge 1 includes a main-span main girder 11 and main-span wing plates 12 symmetrically arranged on both sides of the main-span main girder 11, and the upper plate surface of the main-span wing plates 12 constitutes a road surface for vehicle passage. The main-span wing plates 12 extend forward and are connected to the road surface on one side of the river channel to facilitate vehicle passage. One end of the main-span wing plate 12 close to the river bank is supported and fixed at the top of the main-span bridge pier 14, and the bottom end of the main-span bridge pier 14 is fixed to the ground.

[0025] The side bridge 2 includes a side-span main girder 21, and side-span wing plates 22 symmetrically arranged on both sides of the side-span main girder 21. One end of the side-span wing plate 22 close to the river bank is supported and fixed at the top of the side-span pier 24, and the bottom end of the side-span pier 24 is fixed on the ground; and the upper plate surface of the side-span wing plate 22 forms a road surface for vehicle passage. One end of the side-span wing plate 22 is connected to the main-span wing plate 12, and the other end is connected to the road on the other side of the river, so as to realize the connection between the main bridge 1 and the road on the other side of the river, and further realize the smooth passage of vehicles on the cable-stayed bridge.

[0026] The stay cables include main-span stay cables 13 connecting the cable tower 3 and the main-span main girder 11, and side-span stay cables 23 connecting the cable tower 3 and the side-span main girder 21; each main-span stay cable 13 is parallel in sequence along the length direction of the main-span main girder 11, and each main-span stay cable 13 is located on the same axial symmetry plane of the main-span main girder 11; each side-span stay cable 23 is parallel in sequence along the length direction of the side-span main girder 21, and each side-span stay cable 23 is located on the same axial symmetry plane of the side-span main girder 21; each side-span stay cable 23 and each main-span stay cable 13 are located in the same plane.

[0027] The flow disturbance component includes spiral-shaped diversion grooves 41 extending along the length direction of the stay cables and opened on the surface of the stay cable protection sleeve 4, and each diversion groove 41 is evenly arranged circumferentially around the protection sleeve 4 in sequence. The bottom of the diversion groove 41 is provided with flow disturbance pins 42 extending towards the notch of the diversion groove 41, and each flow disturbance pin 42 in the same diversion groove 41 is arranged at equal intervals along the groove length direction of the diversion groove 41. The diversion groove 41 and the flow disturbance pits 43 can destroy the formation of the water line and the axial flow, so as to be able to destroy the water line and the axial flow formed on the surface of the stay cable. By destroying these flow patterns, the occurrence frequency and amplitude of the wind-rain induced vibration can be significantly reduced, thereby improving the safety of the stay cable in windy and rainy weather. The surface of the protection sleeve 4 is also formed with flow disturbance pits 43, and each flow disturbance pit 43 is arranged along the groove length direction of the diversion groove 41. The flow disturbance pins 42 are arranged in the diversion groove 41, so as to intermittently block the liquid flowing in the diversion groove 41 in windy and rainy weather, thereby further blocking the generation of the water line and the axial flow in the diversion groove 41.

[0028] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A new type of bridge structure, characterized in that, It includes a main bridge (1) spanning across the river surface, with one end of the main bridge (1) connected to the road on one side of the river channel; the other end of the main bridge (1) is supported on a bearing pier (31) located on the edge of the river channel and is connected to a side bridge (2) fixed to the bearing pier (31) at the same time. The other end of the side bridge (2) is connected to the road on the other side of the river channel; a vertically arranged cable tower (3) is installed on the support pier. Both sides of the cable tower (3) are connected to the main bridge (1) and the side bridge (2) respectively through multiple single-row stay cables; the side bridge (2) is shorter than the main bridge (1), and a counterweight block (25) for balancing with the main bridge (1) is arranged on the side bridge (2); and a flow disturbance component for suppressing wind and rain induced vibration is arranged on the stay cables.

2. The novel-structured bridge according to claim 1, wherein, The flow disturbance component includes spiral-shaped diversion grooves (41) extending along the length direction of the stay cables and opened on the surface of the stay cable protective sleeve (4), and each diversion groove (41) is arranged circumferentially and uniformly around the protective sleeve (4) in sequence.

3. The novel-structured bridge according to claim 2, characterized in that, The bottom of the groove of the diversion groove (41) is provided with flow disturbance pins (42) extending towards the groove opening of the diversion groove (41), and each flow disturbance pin (42) in the same diversion groove (41) is arranged at equal intervals along the groove length direction of the diversion groove (41) in sequence.

4. A novel structure bridge according to claim 3, characterized in that, Flow disturbance pits (43) are also formed on the surface of the protective sleeve (4), and each flow disturbance pit (43) is arranged along the groove length direction of the diversion groove (41).

5. A novel-structured bridge according to any one of claims 1-4, characterized in that, The main bridge (1) includes a main span main beam (11) and main span wing plates (12) symmetrically arranged on both sides of the main span main beam (11), and the upper plate surface of the main span wing plates (12) constitutes a road surface for vehicle passage.

6. A novel structure bridge according to claim 5, characterized in that, One end of the main span wing plate (12) close to the river bank is supported and fixed at the top of the main span pier (14), and the bottom end of the main span pier (14) is fixed on the ground.

7. A novel-structured bridge according to claim 6, characterized in that, The side bridge (2) includes a side span main beam (21) and side span wing plates (22) symmetrically arranged on both sides of the side span main beam (21), and the upper plate surface of the side span wing plates (22) constitutes a road surface for vehicle passage.

8. A novel-structured bridge according to claim 7, characterized in that, One end of the side span wing plate (22) close to the river bank is supported and fixed at the top of the side span pier (24), and the bottom end of the side span pier (24) is fixed on the ground.

9. A novel-structured bridge according to claim 8, characterized in that, A hollow cavity is arranged inside the side span main beam (21), and the counterweight block (25) is fixedly installed in the hollow cavity; the counterweight block (25) is a solidified concrete block.

10. A novel structure bridge according to claim 9, characterized in that, The stay cables include main span stay cables (13) connecting the cable tower (3) and the main span main beam (11), and side span stay cables (23) connecting the cable tower (3) and the side span main beam (21); each main span stay cable (13) is parallel in sequence along the length direction of the main span main beam (11), and each main span stay cable (13) is located on the same axial symmetry plane of the main span main beam (11); each side span stay cable (23) is parallel in sequence along the length direction of the side span main beam (21), and each side span stay cable (23) is located on the same axial symmetry plane of the side span main beam (21); each side span stay cable (23) and each main span stay cable (13) are located in the same plane.

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