Wind-resistant damping structure of a cable-stayed bridge deck

Abstract

The utility model relates to cable -stayed bridge technical field, and disclose a kind of cable -stayed bridge deck wind-resistant damping structure, including support structure, the inside fixed mounting of support structure has base and bridge body, spring three is fixedly installed with extruded plate in the side away from fixed plate two, the surface of extruded plate and steel cable contact.The utility model is fixedly installed with wind-breaking ring on the outside of steel cable, so that the resistance of steel cable to wind is reduced, thereby reducing the amplitude of steel cable shaking, when steel cable shakes, the surface of steel cable will contact with extruded plate, when steel cable shakes forward and backward, the strength of steel cable shaking will be absorbed by damping rod three and spring three by extruding extruded plate, thereby reducing the situation of shaking forward and backward, secondly, when shaking up and down, steel cable is slightly pressed down, so that positioning plate is extruded, damping rod two and spring two are contracted, the force of shaking up and down is absorbed, thereby achieving the effect of keeping stable.

Description

Technical Field

[0001] This utility model relates to the field of cable-stayed bridge technology, and more specifically, to a wind-resistant and vibration-damping structure for cable-stayed bridge decks. Background Technology

[0002] The wind-resistant and vibration-damping structure of cable-stayed bridges is a series of measures designed to cope with the vibration caused by wind loads, aiming to improve the stability and safety of the bridge. However, existing cable-stayed bridges rely on steel cables for tension and support to ensure the stability of the bridge structure. When the steel cables are blown by strong winds, they are prone to large swaying and vibration, which can make the bridge deck unstable and increase the risk of the steel cables being stretched or even breaking. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, this utility model provides a wind-resistant and vibration-damping structure for cable-stayed bridge decks, which has the advantages of reducing cable sway and maintaining overall stability.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a wind-resistant and vibration-damping structure for a cable-stayed bridge deck, comprising a support structure, a base and a bridge body fixedly installed inside the support structure, the bridge body being located above the base, a steel cable fixedly installed above the bridge body, a wind-breaking ring fixedly installed on the outer side of the steel cable, the steel cable being fixedly connected to the support structure, a second damping rod fixedly installed above the bridge body, a second spring sleeved on the outer side of the second damping rod, a positioning plate fixedly installed above the second spring, a second fixing plate fixedly installed on the outer side of the positioning plate, a third damping rod fixedly installed on the side of the second fixing plate close to the steel cable, a third spring sleeved on the outer side of the third damping rod, and a compression plate fixedly installed on the side of the third spring away from the second fixing plate, the compression plate contacting the surface of the steel cable.

[0005] As a preferred embodiment of this utility model, a fixing block is fixedly installed on the outer side of the base, a damping rod is fixedly installed on the side of the fixing block near the middle of the base, a spring is sleeved on the outer side of the damping rod, a fixing plate is fixedly installed below the bridge body, and a connecting block is fixedly installed on the side of the spring near the bridge body.

[0006] As a preferred technical solution of this utility model, the fixed plate is provided with a sliding groove, and a slider is slidably connected inside the sliding groove. The side of the slider near the fixed block is fixedly connected to the connecting block.

[0007] As a preferred technical solution of this utility model, a second sliding groove is provided at the bottom of the bridge body, a connecting component is slidably connected to the bottom of the second sliding groove, a support column is fixedly installed at the bottom of the connecting component, and the bottom of the support column is fixedly connected to the base.

[0008] As a preferred technical solution of this utility model, the positioning plate has a sliding groove three inside, and a slider two is slidably connected inside the sliding groove three. The slider two is fixedly connected to the extrusion plate.

[0009] As a preferred technical solution of this utility model, there are multiple steel cables, all of which are fixedly connected to the bridge body. There are multiple air-breaking rings, which are respectively located on the surface of the multiple steel cables. A baffle is fixedly installed above the bridge body.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] 1. This utility model involves fixing a wind-breaking ring to the outside of the steel cable, fixing a damping rod two to the top of the bridge body, attaching a spring two to the outside of the damping rod two, fixing a positioning plate above the spring two, fixing a fixing plate two to the outside of the positioning plate, fixing a damping rod three to the side of the fixing plate two near the steel cable, and attaching a spring three to the outside of the damping rod three. When a strong wind blows across the bridge deck, the steel cable first comes into contact with the wind, and the surface of the wind is broken by the wind-breaking ring, allowing the steel cable to withstand the wind. The resistance is reduced, thereby reducing the amplitude of the cable swaying. When the cable sways, the surface of the cable will contact the compression plate. When the cable sways back and forth, the force of the swaying will be absorbed by the damping rod three and spring three through the compression plate, thus reducing the back and forth swaying. Secondly, when up and down swaying occurs, the cable will be pressed down slightly, causing the positioning plate to be squeezed, causing the damping rod two and spring two to contract, thereby absorbing the force of up and down swaying and achieving a stable effect.

[0012] 2. This utility model features a sliding groove inside a fixed plate, with a slider slidably connected inside the groove. The slider is fixedly connected to a connecting block on the side closest to the fixed block. When the bridge shakes, it will experience slight forward and backward displacement. At this time, the fixed plate will press against the connecting block. Since the fixed plate, spring, and connecting block are on the same horizontal line, if the bridge shakes and the fixed plate presses against the connecting block, spring and damping rod may become stuck during contraction. When the bridge shakes, the fixed plate presses against the connecting block through the sliding connection between the slider and the groove, preventing structural limitation and maintaining the normal operation of damping rod and spring. Simultaneously, a connecting component is slidably connected to the bottom of the sliding groove, and a support column is fixedly installed at the bottom of the connecting component. The bottom of the support column is fixedly connected to the base. When the sliding groove and the connecting component are slidably connected, the support column will not be pulled when the bridge shakes, achieving the effect of slight displacement. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure at point A;

[0015] Figure 3 This is a schematic diagram of the steel cable structure of this utility model;

[0016] Figure 4 This utility model Figure 3 Enlarged schematic diagram of the structure at point B;

[0017] Figure 5 This utility model Figure 3 A magnified schematic diagram of the structure at point C.

[0018] In the diagram: 1. Support structure; 2. Base; 3. Bridge body; 4. Fixing block; 5. Damping rod one; 6. Spring one; 7. Connecting block; 8. Fixing plate one; 9. Slide groove one; 10. Slider one; 11. Slide groove two; 12. Connecting assembly; 13. Support column; 14. Steel cable; 15. Wind-breaking ring; 16. Damping rod two; 17. Spring two; 18. Positioning plate; 19. Slide groove three; 20. Slider two; 21. Extrusion plate; 22. Fixing plate two; 23. Damping rod three; 24. Spring three; 25. Baffle. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 5 As shown, this utility model provides a wind-resistant and vibration-damping structure for a cable-stayed bridge deck, including a support structure 1. A base 2 and a bridge body 3 are fixedly installed inside the support structure 1. The bridge body 3 is located above the base 2. A steel cable 14 is fixedly installed above the bridge body 3. A wind-breaking ring 15 is fixedly installed on the outside of the steel cable 14. The steel cable 14 is fixedly connected to the support structure 1. A second damping rod 16 is fixedly installed above the bridge body 3. A second spring 17 is sleeved on the outside of the second damping rod 16. A positioning plate 18 is fixedly installed above the second spring 17. A second fixing plate 22 is fixedly installed on the outside of the positioning plate 18. A third damping rod 23 is fixedly installed on the side of the second fixing plate 22 closest to the steel cable 14. A third spring 24 is sleeved on the outside of the third damping rod 23. A compression plate 21 is fixedly installed on the side of the third spring 24 away from the second fixing plate 22. The compression plate 21 is in contact with the surface of the steel cable 14.

[0021] When strong winds blow across the bridge deck, the steel cable 14 first comes into contact with the wind, and the surface of the wind is broken by the wind-breaking ring 15, reducing the resistance of the steel cable 14 to the wind and thus reducing the amplitude of the swaying of the steel cable 14. When the steel cable 14 sways, its surface comes into contact with the compression plate 21. When the steel cable 14 sways back and forth, the force of the swaying is absorbed by the damping rod 23 and the spring 24 through the compression plate 21, thus reducing the back and forth swaying. Secondly, when up and down swaying occurs, the steel cable 14 is slightly pressed downward, causing the positioning plate 18 to be squeezed, and the damping rod 16 and the spring 17 to contract, thereby absorbing the force of the up and down swaying and achieving a stable effect.

[0022] Among them, a fixing block 4 is fixedly installed on the outer side of the base 2, a damping rod 5 is fixedly installed on the side of the fixing block 4 near the middle of the base 2, a spring 6 is sleeved on the outer side of the damping rod 5, a fixing plate 8 is fixedly installed on the lower part of the bridge body 3, and a connecting block 7 is fixedly installed on the side of the spring 6 near the bridge body 3.

[0023] When the wind under the bridge is strong and comes into contact with the bridge body 3, causing the bridge body 3 to sway, the spring 6 and the connecting block 7 will retract. At this time, the fixing plate 8 will squeeze the connecting block 7, so that the spring 6 and the damping rod 5 absorb the force of the back and forth swaying, thereby making the bridge body 3 stable.

[0024] The fixed plate 8 has a groove 9 inside, and a slider 10 is slidably connected inside the groove 9. The side of the slider 10 closest to the fixed block 4 is fixedly connected to the connecting block 7.

[0025] When the bridge body 3 shakes, it will experience slight forward and backward displacement. At this time, the fixing plate 8 will press against the connecting block 7. Since the fixing plate 8, spring 6, and connecting block 7 are on the same horizontal line, if the bridge body 3 shakes and the fixing plate 8 presses against the connecting block 7, spring 6 and damping rod 5 may get stuck during the contraction process. At this time, when the bridge body 3 shakes back and forth, the fixing plate 8 presses against the connecting block 7 through the sliding connection between the slider 10 and the slide groove 9, so that there will be no structural limitation and the damping rod 5 and spring 6 can continue to operate normally.

[0026] Among them, the bottom of the bridge body 3 is provided with a sliding groove 11, the bottom of the sliding groove 11 is slidably connected to a connecting component 12, and the bottom of the connecting component 12 is fixedly installed with a support column 13, and the bottom of the support column 13 is fixedly connected to the base 2.

[0027] The main function of the support column 13 is to support the base 2 and the bridge body 3, maintain the overall uniform force, and make the bridge body 3 more stable. At the same time, when the slide groove 11 is slidably connected to the connecting component 12, the support column 13 will not be pulled when the bridge body 3 shakes, thus achieving the effect of slight displacement.

[0028] The positioning plate 18 has a sliding groove 19 inside, and a slider 20 is slidably connected inside the sliding groove 19. The slider 20 is fixedly connected to the extrusion plate 21.

[0029] When the steel cable 14 sways and squeezes the extrusion plate 21, the extrusion plate 21 will move back and forth through the sliding connection between the slider 20 and the groove 3 19 to achieve a stable effect.

[0030] There are multiple steel cables 14, all of which are fixedly connected to the bridge body 3. There are multiple air-breaking rings 15, which are located on the surface of multiple steel cables 14. A baffle 25 is fixedly installed on the top of the bridge body 3.

[0031] The multiple wind-breaking rings 15 are all annular, and their main function is to break the wind for the steel cable 14, thereby reducing the resistance between the steel cable 14 and the wind.

[0032] Working principle and usage process of this utility model:

[0033] First, a wind-breaking ring 15 is fixedly installed on the outside of the steel cable 14, a damping rod 16 is fixedly installed above the bridge body 3, a spring 17 is sleeved on the outside of the damping rod 16, a positioning plate 18 is fixedly installed above the spring 17, a fixing plate 22 is fixedly installed on the outside of the positioning plate 18, a damping rod 23 is fixedly installed on the side of the fixing plate 22 close to the steel cable 14, and a spring 24 is sleeved on the outside of the damping rod 23. When the wind is strong and blows on the bridge deck, the surface of the wind will be broken by the wind-breaking ring 15 after the steel cable 14 comes into contact with the wind, thereby reducing the resistance of the steel cable 14 to the wind and reducing the amplitude of the swaying of the steel cable 14.

[0034] When the steel cable 14 sways, its surface comes into contact with the compression plate 21. When the steel cable 14 sways back and forth, the force of the swaying is absorbed by the damping rod 23 and the spring 24 through the compression plate 21, thus reducing the back and forth swaying. Secondly, when the up and down swaying occurs, the steel cable 14 presses down slightly, causing the positioning plate 18 to be squeezed, which causes the damping rod 16 and the spring 17 to contract, thereby absorbing the force of the up and down swaying and achieving a stable effect.

[0035] Secondly, since a groove 9 is provided inside the fixed plate 8, a slider 10 is slidably connected inside the groove 9, and the side of the slider 10 closest to the fixed block 4 is fixedly connected to the connecting block 7, when the bridge body 3 shakes, the bridge body 3 will have a slight forward and backward displacement. At this time, the fixed plate 8 will squeeze the connecting block 7. Since the fixed plate 8, the spring 6, and the connecting block 7 are on the same horizontal line, if the bridge body 3 shakes and the fixed plate 8 squeezes the connecting block 7, the spring 6 and the damping rod 5 will be stuck during the contraction process. At this time, when the bridge body 3 shakes back and forth, the fixed plate 8 squeezes the connecting block 7 through the sliding connection between the slider 10 and the groove 9, so that there will be no structural limitation and the damping rod 5 and the spring 6 will continue to operate normally.

[0036] Finally, since a connecting component 12 is slidably connected to the bottom of the slide 11, and a support column 13 is fixedly installed at the bottom of the connecting component 12, and the bottom of the support column 13 is fixedly connected to the base 2, when the slide 11 and the connecting component 12 are slidably connected, the support column 13 will not be pulled when the bridge body 3 shakes, thus achieving the effect of slight displacement.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wind-resistant and vibration-damping structure for a cable-stayed bridge deck, comprising a support structure (1), characterized in that: The support structure (1) has a base (2) and a bridge body (3) fixedly installed inside. The bridge body (3) is located above the base (2). A steel cable (14) is fixedly installed above the bridge body (3). A windbreak ring (15) is fixedly installed on the outside of the steel cable (14). The steel cable (14) is fixedly connected to the support structure (1). A damping rod (16) is fixedly installed above the bridge body (3). A spring (17) is sleeved on the outside of the damping rod (16). A positioning plate (18) is fixedly installed above the second spring (17). A fixing plate (22) is fixedly installed on the outside of the positioning plate (18). A damping rod (23) is fixedly installed on the side of the fixing plate (22) near the steel cable (14). A spring (24) is sleeved on the outside of the damping rod (23). A compression plate (21) is fixedly installed on the side of the spring (24) away from the fixing plate (22). The compression plate (21) is in contact with the surface of the steel cable (14).

2. The wind-resistant and vibration-damping structure for a cable-stayed bridge deck according to claim 1, characterized in that: A fixing block (4) is fixedly installed on the outer side of the base (2). A damping rod (5) is fixedly installed on the side of the fixing block (4) near the middle of the base (2). A spring (6) is sleeved on the outer side of the damping rod (5). A fixing plate (8) is fixedly installed below the bridge body (3). A connecting block (7) is fixedly installed on the side of the spring (6) near the bridge body (3).

3. The wind-resistant and vibration-damping structure for a cable-stayed bridge deck according to claim 2, characterized in that: The fixed plate (8) has a sliding groove (9) inside, and a slider (10) is slidably connected inside the sliding groove (9). The slider (10) is fixedly connected to the connecting block (7) on the side near the fixed block (4).

4. The wind-resistant and vibration-damping structure for a cable-stayed bridge deck according to claim 1, characterized in that: The bottom of the bridge body (3) is provided with a sliding groove (11), and a connecting component (12) is slidably connected to the bottom of the sliding groove (11). A support column (13) is fixedly installed at the bottom of the connecting component (12), and the bottom of the support column (13) is fixedly connected to the base (2).

5. The wind-resistant and vibration-damping structure for a cable-stayed bridge deck according to claim 1, characterized in that: The positioning plate (18) has a sliding groove three (19) inside, and a slider two (20) is slidably connected inside the sliding groove three (19). The slider two (20) is fixedly connected to the extrusion plate (21).

6. The wind-resistant and vibration-damping structure for a cable-stayed bridge deck according to claim 1, characterized in that: There are multiple steel cables (14), and all of the steel cables (14) are fixedly connected to the bridge body (3). There are multiple wind-breaking rings (15), and the multiple wind-breaking rings (15) are respectively located on the surface of the multiple steel cables (14). A baffle (25) is fixedly installed above the bridge body (3).

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