Subway upper cover building damping device

Abstract

The utility model relates to the technical field of subway rails, and discloses a subway upper cover building damping device which comprises a foundation, a top bottom plate is arranged at the top of the foundation, two sets of first damping mechanisms are arranged at the bottom of the top bottom plate, and each first damping mechanism comprises two supporting rods installed at the bottom of the top bottom plate in a hinged mode. And moving blocks are hinged to the bottoms of the two supporting rods correspondingly, and the bottoms of the two moving blocks are slidably connected with the top of the foundation. Through two groups of first damping mechanisms which are elaborately designed and a dynamic damping system formed by a supporting rod and a moving block which are hinged to each other, vibration energy generated by subway operation can be effectively absorbed and dispersed, so that the supporting rod flexibly swings when being vibrated, and the amplitude of vibration transmitted to a top plate, a bottom plate and a building structure above is greatly reduced; the comfort level of living and office environments is remarkably improved, and the problem that in the prior art, the damping effect is poor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of subway rails, and more specifically, the utility model relates to a vibration damping device for a subway overlying building. Background Technique

[0002] When the subway is in operation, the vibrations generated by the train passing through the track are propagated in the form of elastic waves. These vibration waves will be propagated along media such as the tunnel wall and the foundation to the overlying building, affecting its stability and living comfort. The subway vibrations are propagated outward through the structures, inducing secondary vibrations and noises in the upper buildings. When the vibrations exceed the vibration threshold allowed by the overlying building, it may cause structural cracking, peeling or even damage, reducing the seismic strength of the building. In addition, the vibrations and noises will also cause physical and psychological hazards to the human body. Subway overlying buildings are usually used for residential, office and other purposes. Reducing vibrations and noises is crucial for improving the comfort of the living and working environments. Long-term vibration effects may cause cumulative damage to the building structure, affecting the safety and service life of the building. Therefore, the vibration damping device is of great significance for protecting the building structure. With the acceleration of the urbanization process and the improvement of environmental protection awareness, reducing the negative impact of subway operation on the environment has become an important issue. The vibration damping device, as an effective means to reduce vibrations and noises, meets the environmental protection requirements. Content of the Utility Model

[0003] The utility model provides a vibration damping device for a subway overlying building, which solves the problem of a vibration damping device for a subway overlying building in the related art.

[0004] In order to overcome the deficiencies of the prior art, the utility model provides a vibration damping device for a subway overlying building, which has the advantages of good damping effect and long service life.

[0005] To achieve the above object, the utility model provides the following technical solution: A vibration damping device for a subway overlying building, including a foundation, a top bottom plate is arranged on the top of the foundation, two groups of damping mechanisms one are arranged on the bottom of the top bottom plate, the damping mechanism one includes two support rods hinged to the bottom of the top bottom plate, the bottom parts of the two support rods are respectively hinged with moving blocks, and the bottom parts of the two moving blocks are slidably connected with the top of the foundation.

[0006] As a preferred technical solution of the utility model, a partition board is arranged between the top bottom plate and the foundation, two groups of damping mechanisms two are arranged on the bottom of the partition board, the damping mechanism two includes two connecting rods hinged to the bottom of the partition board, the bottom parts of the two connecting rods are respectively hinged with moving sliders, and the two moving sliders are slidably connected with the top of the foundation.

[0007] As a preferred technical solution of the present utility model, the two sets of shock-absorbing mechanisms are symmetrically distributed left and right with the symmetry axis of the foundation as the center.

[0008] As a preferred technical solution of the present utility model, the shock-absorbing mechanism I further includes four fixing blocks fixedly installed on the top of the foundation, and the two support rods are elastically connected to the corresponding two fixing blocks respectively through two spring-damper rod assemblies III.

[0009] As a preferred technical solution of the present utility model, a rectangular frame I is fixedly installed on the top of the foundation, and a rectangular frame II is fixedly installed on the bottom of the top bottom plate, and the rectangular frame I is slidably connected to the rectangular frame II.

[0010] As a preferred technical solution of the present utility model, the side of the partition plate close to the foundation is elastically connected through a plurality of spring-damper rod assemblies I, and the side of the partition plate close to the top bottom plate is elastically connected through a plurality of spring-damper rod assemblies II.

[0011] As a preferred technical solution of the present utility model, mounting blocks are respectively fixedly installed on the sides of the two support rods on the left and the two support rods on the right close to each other, and the sides of the corresponding two mounting blocks close to each other are elastically connected through a spring-damper rod assembly IV respectively.

[0012] As a preferred technical solution of the present utility model, the two sets of shock-absorbing mechanisms are symmetrically distributed front and back with the symmetry axis of the foundation as the center.

[0013] As a preferred technical solution of the present utility model, limiting bumps are respectively fixedly installed at the bottoms of the four moving blocks, four limiting grooves are formed in the top of the foundation, and the four limiting grooves are slidably connected to the corresponding limiting bumps respectively.

[0014] As a preferred technical solution of the present utility model, two damper rods are respectively fixedly installed on the sides of the corresponding two fixing blocks close to each other, the two damper rods respectively penetrate through the corresponding two moving sliders and are slidably connected to the corresponding two moving sliders, and the sides of the corresponding moving sliders and the corresponding fixing blocks close to each other are elastically connected through springs respectively.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. The utility model, through two carefully designed shock absorption mechanisms I, utilizes a dynamic shock absorption system composed of a support rod and a moving block installed by hinge connection, which can effectively absorb and disperse the vibration energy generated during subway operation, enabling the support rod to swing flexibly when subjected to vibration, thereby significantly reducing the vibration amplitude transmitted to the top and bottom plates and the building structure above, and remarkably enhancing the comfort of the living and working environment. Compared with traditional devices, the sliding connection design between the moving block and the foundation not only ensures the smoothness of the shock absorption process but also enhances the stability of the entire device in a complex stress environment. This design allows the system to respond flexibly to vibrations in different directions, preventing local stress concentration caused by vibrations and extending the service life of the building structure.

[0017] 2. The utility model realizes the dual absorption and dispersion of vibration energy by adding a partition between the top and bottom plates and the foundation and installing two shock absorption mechanisms II on the partition. The dual shock absorption mechanism can more effectively reduce the transmission of vibration to the building structure above, further enhancing the shock absorption effect. Compared with traditional devices, the introduction of the partition not only increases the layering and structural strength of the device but also makes the entire shock absorption system more compact and stable. The combination of the partition and the shock absorption mechanism II forms a more complete shock absorption system, which helps to improve the integrity and stability of the entire building structure. The two shock absorption mechanisms II are located at the bottom of the partition and the original shock absorption mechanism I is located at the bottom of the top and bottom plates, working together to more comprehensively cover and respond to vibration sources from different directions and intensities. This design enables the device to maintain high shock absorption performance in a complex vibration environment. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of the utility model;

[0019] Figure 2 is a schematic diagram of the internal structure of rectangle frame I of the utility model;

[0020] Figure 3 is a schematic diagram of the connecting rod structure of the utility model;

[0021] Figure 4 is a schematic diagram of the moving slider structure of the utility model;

[0022] Figure 5 is a schematic diagram of the limit convex block structure of the utility model.

[0023] In the figure: 1. Foundation; 2. Rectangle frame I; 3. Spring-damper rod assembly I; 4. Partition; 5. Spring-damper rod assembly II; 6. Top and bottom plates; 7. Rectangle frame II; 8. Support rod; 9. Fixed block; 10. Moving block; 11. Spring-damper rod assembly III; 12. Spring-damper rod assembly IV; 13. Mounting block; 14. Limit groove; 15. Limit convex block; 16. Damper rod; 17. Moving slider; 18. Spring; 19. Connecting rod. Detailed implementation mode

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 to 5 shown, the present utility model provides a vibration reduction device for a building covering a subway, including a foundation 1. A top bottom plate 6 is arranged on the top of the foundation 1. Two sets of shock absorption mechanisms I are arranged at the bottom of the top bottom plate 6. The shock absorption mechanism I includes two support rods 8 hinged to the bottom of the top bottom plate 6. The bottoms of the two support rods 8 are respectively hinged with moving blocks 10. The bottoms of the two moving blocks 10 are both slidably connected to the top of the foundation 1.

[0026] Through two sets of carefully designed shock absorption mechanisms I, a dynamic shock absorption system composed of the hinged support rods 8 and the moving blocks 10 can effectively absorb and disperse the vibration energy generated by the subway operation, enabling the support rods 8 to swing flexibly when subjected to vibration, thereby greatly reducing the vibration amplitude transmitted to the top bottom plate 6 and the building structure above, significantly improving the comfort of the living and working environment. Compared with traditional devices, the sliding connection design between the moving blocks 10 and the foundation 1 not only ensures the smoothness during the shock absorption process but also enhances the stability of the entire device in a complex stress environment. This design allows the system to respond flexibly to vibrations in different directions, preventing local stress concentration caused by vibrations and extending the service life of the building structure.

[0027] Initial state: After the device is installed, the foundation 1 is stably placed, and the top and bottom plates 6 are suspended above the foundation 1 through the first shock-absorbing mechanism. The partition plate 4 is located between the top and bottom plates 6 and the foundation 1, and is also connected to the foundation 1 through the second shock-absorbing mechanism. Each component such as the fixed block 9, the support rod 8, the moving block 10, and the spring-damper rod assembly including one, two, three, four, etc. have been correctly installed and are in the preset positions; when the subway runs, the generated vibration is transmitted to the entire shock-absorbing device through the foundation 1. The vibration is first transmitted to the top and bottom plates 6, and then transmitted to the moving block 10 via the support rod 8. The hinged design between the support rod 8 and the moving block 10 allows the support rod to swing flexibly under the action of vibration, thereby initially absorbing the vibration energy. At the same time, the spring-damper rod assembly three 11 further absorbs and disperses the vibration energy through the combined action of its spring and damper rod, suppressing the transmission of vibration. The vibration is further transmitted to the partition plate 4, and the connecting rod 19 at the bottom of the partition plate and the moving block 10 also start to work, absorbing and dispersing the vibration energy in the same way. The spring-damper rod assembly one 3 and the spring-damper rod assembly two 5 are respectively connected to the partition plate 4 and the foundation 1 and the top and bottom plates 6, further enhancing the shock-absorbing effect. The sliding connection between the first rectangular frame 2 and the second rectangular frame 7 also plays a certain shock-absorbing role, consuming the vibration energy through friction and relative sliding. The spring-damper rod assembly four 12 between the left and right support rods enhances the lateral stability and prevents the relative sway of the support rods during vibration. Through the collaborative work of the above multi-layer shock-absorbing mechanism and components, the vibration energy is effectively absorbed, dispersed, and suppressed, ultimately greatly reducing the vibration amplitude transmitted to the top and bottom plates 6 and the upper building structure, improving the comfort of the living and working environment, and at the same time ensuring the long-term stability of the building structure

[0028] Among them, a partition plate 4 is provided in the middle of the top and bottom plates 6 and the foundation 1. Two groups of the second shock-absorbing mechanisms are provided at the bottom of the partition plate 4. The second shock-absorbing mechanism includes two connecting rods 19 hingedly installed at the bottom of the partition plate 4. The bottoms of the two connecting rods 19 are respectively hingedly installed with moving sliders 17, and the two moving sliders 17 are slidably connected to the top of the foundation 1.

[0029] By adding a partition plate 4 between the top and bottom plates 6 and the foundation 1 and installing two groups of the second shock-absorbing mechanisms on the partition plate, the dual absorption and dispersion of vibration energy are realized. The dual shock-absorbing mechanism can more effectively reduce the transmission of vibration to the upper building structure, further enhancing the shock-absorbing effect. Compared with the traditional device, the introduction of the partition plate 4 not only increases the layering and structural strength of the device, but also makes the entire shock-absorbing system more compact and stable. The combination of the partition plate and the second shock-absorbing mechanism forms a more complete shock-absorbing system, which helps to improve the integrity and stability of the entire building structure. The two groups of the second shock-absorbing mechanisms are located at the bottom of the partition plate and the original first shock-absorbing mechanism is located at the bottom of the top and bottom plates to work together, which can more comprehensively cover and respond to vibration sources from different directions and intensities. This design enables the device to maintain high-efficiency shock-absorbing performance in a complex vibration environment.

[0030] Among them, the two sets of shock absorption mechanisms are designed to be symmetrically distributed left and right with the symmetry axis of the foundation 1 as the center.

[0031] Through the shock absorption mechanisms that are symmetrically distributed left and right, it can be ensured that under the operation of the subway or the action of other vibration sources, the forces received by the device can be evenly distributed on both sides, avoiding structural deviation or damage caused by excessive force on one side. This balanced force not only enhances the overall stability of the device but also extends its service life.

[0032] Among them, shock absorption mechanism one also includes four fixing blocks 9 fixedly installed on the top of the foundation 1, and two support rods 8 are elastically connected to the corresponding two fixing blocks 9 through two spring-damper rod assemblies three 11 respectively.

[0033] By introducing the spring-damper rod assembly three 11, shock absorption mechanism one can more precisely adjust and control the shock absorption effect. The combination of the elasticity of the spring and the damping effect of the damper rod can absorb vibration energy while effectively suppressing the transmission of vibration and resonance phenomena, thus providing a more stable and comfortable living environment.

[0034] Among them, a rectangular frame one 2 is fixedly installed on the top of the foundation 1, and a rectangular frame two 7 is fixedly installed on the bottom of the top and bottom plates 6. The rectangular frame one 2 is slidably connected to the rectangular frame two 7.

[0035] Through the sliding connection design of the rectangular frame one 2 and the rectangular frame two 7, an additional shock absorption level is added on the basis of the original shock absorption mechanism. Before the vibration is transmitted to the top and bottom plates 6, it needs to go through the relative sliding and friction between the rectangular frames, thereby further consuming vibration energy and enhancing the shock absorption effect.

[0036] Among them, one side of the partition 4 close to the foundation 1 is elastically connected through several spring-damper rod assemblies one 3, and one side of the partition 4 close to the top and bottom plates 6 is elastically connected through several spring-damper rod assemblies two 5.

[0037] By introducing the spring-damper rod assembly one 3 and the spring-damper rod assembly two 5, the device forms a multi-stage shock absorption system, which can more effectively absorb and disperse vibration energy, gradually weakening the impact of vibration on the upper building structure, thus providing a more stable and comfortable living environment.

[0038] Among them, mounting blocks 13 are fixedly installed on the sides of the two support rods 8 on the left and the two support rods 8 on the right that are close to each other, and the sides of the corresponding two mounting blocks 13 close to each other are elastically connected through spring-damper rod assemblies four 12 respectively.

[0039] By installing a spring damping rod assembly 12 between the left and right support rods, the support rods on both sides are connected to each other, which effectively enhances the stability of the shock absorbing mechanism in the lateral direction and can prevent relative shaking between the support rods caused by vibration, thereby maintaining the stability of the entire shock absorbing system.

[0040] The two groups of shock absorbing mechanisms are designed to be symmetrically distributed frontward and rearward with the symmetry axis of the foundation 1 as the center.

[0041] Through the design of symmetrical front-to-back distribution, the two groups of shock-absorbing mechanisms can evenly absorb and disperse the vibration energy from subway operation or other vibration sources. This balanced distribution helps to ensure that the entire shock-absorbing device maintains stability when subjected to force, reducing the additional stress and deformation caused by uneven force. The shock-absorbing mechanism with symmetrical front-to-back distribution can more effectively guide the transmission path of vibration energy and reduce the reflection and superposition of vibration inside the device.

[0042] The bottoms of the four moving blocks 10 are respectively fixed with limiting protrusions 15 , and the top of the foundation 1 is provided with four limiting grooves 14 , which are slidably connected to the corresponding limiting protrusions 15 .

[0043] The sliding connection design between the limiting protrusion 15 and the limiting groove 14 ensures that the moving block 10 can move along a predetermined trajectory when subjected to vibration, thereby avoiding deviation or shaking caused by vibration, enhancing the stability of the entire vibration reduction system, and preventing adverse effects on the building structure caused by unstable movement.

[0044] Among them, two damping rods 16 are fixedly installed on the side where the corresponding two fixed blocks 9 are close to each other, and the two damping rods 16 respectively penetrate the corresponding two movable sliders 17 and are slidably connected with the corresponding two movable sliders 17. The corresponding movable slider 17 and the side where the corresponding fixed block 9 is close to each other are elastically connected by springs 18.

[0045] The introduction of the damping rod 16 provides additional constraints on the movement trajectory of the moving block 10 during vibration, making its movement smoother and more controllable. The elastic connection of the spring 18 can further suppress the sudden acceleration or deceleration of the moving block 10 while absorbing the vibration energy, thereby enhancing the stability of the entire shock absorbing system.

[0046] The working principle and use process of this utility model:

[0047] Initial state: After the device is installed, the foundation 1 is stably placed, and the top and bottom plates 6 are suspended above the foundation 1 through the first shock-absorbing mechanism. The partition plate 4 is located between the top and bottom plates 6 and the foundation 1, and is also connected to the foundation 1 through the second shock-absorbing mechanism. Each component such as the fixed block 9, the support rod 8, the moving block 10, and the spring-damper rod assemblies including one, two, three, four, etc. have been correctly installed and are in their preset positions; when the subway runs, the vibration generated is transmitted to the entire shock-absorbing device through the foundation 1. The vibration is first transmitted to the top and bottom plates 6, and then transmitted to the moving block 10 through the support rod 8. The hinge design between the support rod 8 and the moving block 10 allows the support rod to swing flexibly under the action of vibration, thereby initially absorbing the vibration energy. At the same time, the spring-damper rod assembly three 11 further absorbs and disperses the vibration energy through the combination of its spring and damper rod, suppressing the transmission of vibration. The vibration is further transmitted to the partition plate 4, and the connecting rod 19 at the bottom of the partition plate and the moving block 10 also start to work, absorbing and dispersing the vibration energy in the same way. The spring-damper rod assembly one 3 and the spring-damper rod assembly two 5 are respectively connected to the partition plate 4 and the foundation 1 and the top and bottom plates 6, further enhancing the shock-absorbing effect. The sliding connection between the first rectangular frame 2 and the second rectangular frame 7 also plays a certain shock-absorbing role, consuming the vibration energy through friction and relative sliding. The spring-damper rod assembly four 12 between the left and right support rods enhances the lateral stability and prevents the relative sway of the support rods during vibration. Through the coordinated work of the above multi-layer shock-absorbing mechanisms and components, the vibration energy is effectively absorbed, dispersed, and suppressed, ultimately greatly reducing the vibration amplitude transmitted to the top and bottom plates 6 and the building structure above, improving the comfort of the living and working environment, and at the same time ensuring the long-term stability of the building structure.

[0048] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0049] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vibration damping device for a building constructed above a subway, comprising a foundation (1), characterized in that: A top and bottom plate (6) is provided at the top of the foundation (1). Two sets of first shock-absorbing mechanisms are provided at the bottom of the top and bottom plate (6). Each first shock-absorbing mechanism includes two support rods (8) hinged to the bottom of the top and bottom plate (6). The bottom ends of the two support rods (8) are respectively hinged with moving blocks (10). The bottoms of the two moving blocks (10) are both slidably connected to the top of the foundation (1).

2. The vibration damping device for a building covering a subway according to claim 1, wherein: A partition plate (4) is provided between the top and bottom plate (6) and the foundation (1). Two sets of second shock-absorbing mechanisms are provided at the bottom of the partition plate (4). Each second shock-absorbing mechanism includes two connecting rods (19) hinged to the bottom of the partition plate (4). The bottom ends of the two connecting rods (19) are respectively hinged with moving sliders (17). The two moving sliders (17) are slidably connected to the top of the foundation (1).

3. A vibration damping device for a building constructed above a subway, as claimed in claim 1, wherein: The two sets of shock-absorbing mechanisms are symmetrically distributed left and right with the symmetry axis of the foundation (1) as the center.

4. A vibration damping device for a building constructed above a subway, as claimed in claim 1, wherein: The first shock-absorbing mechanism further includes four fixing blocks (9) fixedly installed on the top of the foundation (1). The two support rods (8) are respectively elastically connected to the corresponding two fixing blocks (9) through two spring-damper rod assemblies three (11).

5. The vibration damping device for a building constructed above a subway according to claim 2, wherein: A first rectangular frame (2) is fixedly installed on the top of the foundation (1), and a second rectangular frame (7) is fixedly installed on the bottom of the top and bottom plate (6). The first rectangular frame (2) is slidably connected to the second rectangular frame (7).

6. The vibration damping device for a building constructed above a subway according to claim 2, characterized in that: One side of the partition plate (4) close to the foundation (1) is elastically connected through a plurality of spring-damper rod assemblies one (3), and one side of the partition plate (4) close to the top and bottom plate (6) is elastically connected through a plurality of spring-damper rod assemblies two (5).

7. A vibration reduction device for a building built on top of a subway, as claimed in claim 4, wherein: Mounting blocks (13) are respectively fixedly installed on the sides of the two left support rods (8) and the two right support rods (8) close to each other. The sides of the corresponding two mounting blocks (13) close to each other are respectively elastically connected through a spring-damper rod assembly four (12).

8. The vibration damping device for a building covering a subway according to claim 2, wherein: The two sets of shock-absorbing mechanisms are symmetrically distributed front and back with the symmetry axis of the foundation (1) as the center.

9. The vibration damping device for a building covering a subway according to claim 1, wherein: Limit bumps (15) are respectively fixedly installed at the bottoms of the four moving blocks (10). Four limit grooves (14) are formed in the top of the foundation (1). The four limit grooves (14) and the corresponding limit bumps (15) are respectively slidably connected.

10. The vibration damping device for a building constructed above a subway according to claim 2, wherein: Two damper rods (16) are respectively fixedly installed on the sides of the corresponding two fixing blocks (9) close to each other. The two damper rods (16) respectively penetrate through the corresponding two moving sliders (17) and are slidably connected to the corresponding two moving sliders (17). The sides of the corresponding moving sliders (17) and the corresponding fixing blocks (9) close to each other are respectively elastically connected through springs (18).

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