Large-span totally-closed sound barrier connecting structure
By designing a large-span fully enclosed acoustic barrier connection structure including frame parts, sound absorbing parts and flexible support members, the problems of heavy structures and difficult to meet fire ventilation requirements in the prior art are solved, and the effect of effectively reducing noise and improving vibration resistance is achieved.
Patent Information
- Application Number
- CN202421847567.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing large-span fully enclosed acoustic barrier structure is redundant and difficult to meet the fire ventilation needs. At the same time, the flexible cable net structure has a large deformation capacity, and the conventional open lateral acoustic barrier has weak deformation capacity.
A large-span fully enclosed sound barrier connection structure is designed, including frame parts, sound absorbing parts, upper flexible support parts and lower flexible support parts. The sound barrier side panels and top panels are connected through frame parts, and the sound absorbing parts are used to reduce noise, and the vibration resistance is improved through flexible support parts.
It has achieved effective reduction of traffic noise propagation to nearby high-rise buildings while meeting the demand for sound barrier fire ventilation, with good vibration resistance and flexible structural design.
Smart Images
Figure CN223033877U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of bridge auxiliary facilities, and particularly relates to a connection structure of a large-span fully enclosed sound barrier. Background Technique
[0002] Taking the city as the scenario, the reconstruction of existing elevated roads or the widening of existing viaducts will inevitably occupy the activity space of residents and merchants on both sides of the road. In particular, the problem of noise pollution associated with road traffic becomes prominent. Vehicles traveling rapidly on the viaduct will generate a large amount of noise, which has a negative impact on the quality of life of surrounding residents, and may cause health problems such as sleep disorders, increased stress, and hearing damage. Relevant urban construction regulations have covered the prevention and control of relevant environmental noise.
[0003] In terms of engineering, the building heights on both sides of urban roads are different, and residents on the side with higher buildings are easily affected by the negative impact of conventional open sound barriers. Not only is the noise reduction effect poor, but it may even have a noise amplification effect. Adopting a fully enclosed sound barrier has become an effective method to meet the noise reduction requirements of high-rise buildings near elevated bridges. However, at present, urban elevated bridges are continuously widened, and the structure of conventional fully enclosed sound barriers is cumbersome.
[0004] Recently, a sound barrier structure design using a cable net flexible support has the advantages of light weight, high toughness, and strengthening the stress state of the bridge. It can effectively alleviate the structural design dilemma of the roof of the large-span fully enclosed sound barrier. However, the deformation ability of the flexible cable net structure system is relatively large, while the deformation ability of the conventional open side sound barrier is weak.
[0005] Therefore, there is an urgent need to design a connection structure to solve the above technical defects. Content of the Utility Model
[0006] The utility model aims at the technical problems existing in the prior art, and provides a connection structure of a large-span fully enclosed sound barrier, which can effectively reduce the transmission of traffic noise to adjacent high-rise buildings while meeting the requirements of fire protection and ventilation of the sound barrier.
[0007] The technical solution of the utility model to solve the above technical problems is as follows: A connection structure of a large-span fully enclosed sound barrier, comprising: a frame member, a sound absorption member, an upper flexible support member, and a lower flexible support member;
[0008] The sound absorption member is fixedly arranged inside the frame member along the opening direction thereof. The upper flexible support member and the lower flexible support member are respectively fixedly arranged on the top end surface and the bottom end surface on one side of the frame member. And the side of the lower flexible support member facing away from the frame member is fixedly arranged on the top of the sound barrier roof;
[0009] Wherein, the side of the frame member facing away from the lower flexible support member is connected to the sound barrier side plate;
[0010] The opening direction of the frame-shaped member is the width direction of the sound barrier top plate.
[0011] As a further technical solution, several frame-shaped members are provided and arranged at intervals along the width direction of the sound barrier side plate, and are connected by the sound absorption member.
[0012] As a further technical solution, the sound absorption member is welded at an angle of 40-55° inside the frame-shaped member.
[0013] As a further technical solution, it further includes a fixing bracket whose lower end surface is fixedly connected to the upper end surface of the upper flexible support member.
[0014] As a further technical solution, the longitudinal section of the fixing bracket is constructed in an n shape to form a frame structure with the sound barrier top plate to accommodate the upper flexible support member and the lower flexible support member;
[0015] Wherein, the opening direction of this frame structure is consistent with the length direction of the sound barrier top plate.
[0016] As a further technical solution, it further includes a side wall bracket arranged along the height direction of the sound barrier side plate, and the side wall bracket is arranged parallel to the frame-shaped member to be connected to the side wall of the frame-shaped member on the sound barrier side plate.
[0017] As a further technical solution, it further includes several top brackets arranged at intervals along the length direction of the sound barrier top plate, and the top brackets are parallel to the width direction of the sound barrier top plate.
[0018] As a further technical solution, both the upper flexible support member and the lower flexible support member are rubber bellows.
[0019] As a further technical solution, the sound absorption member is a sound absorption board.
[0020] The beneficial effects of the present utility model are: while connecting the sound barrier side plate and the sound barrier top plate through the frame-shaped member, the position design of the upper flexible support member and the lower flexible support member enables this connection structure to have good anti-vibration performance and can adapt to the dynamic loads of elevated bridges and wind forces;
[0021] In addition, the design of the sound absorption member in the frame-shaped member can significantly reduce noise while ensuring the requirements of fire protection and ventilation;
[0022] Finally, the overall structure design is flexible and variable, with strong adaptability, little influence on the original structural load, can be applied to various noise prevention projects, has diverse applicable scenarios, and broad application prospects. Description of the Drawings
[0023] Figure 1 It is a usage state diagram of a connection structure of a large-span fully enclosed sound barrier of the present utility model;
[0024] Figure 2 This is a partially enlarged structural schematic diagram of a large-span fully enclosed sound barrier connection structure of the present utility model in its use state;
[0025] Figure 3 This is a partially enlarged structural schematic diagram of a large-span fully enclosed sound barrier connection structure of the present utility model in its use state, with the fixing bracket removed;
[0026] Figure 4 This is a partially enlarged structural schematic diagram of a large-span fully enclosed sound barrier connection structure of the present utility model;
[0027] Figure 5 This is a structural schematic diagram of the top bracket.
[0028] In the accompanying drawings, the list of components represented by each reference numeral is as follows:
[0029] Frame member 1, sound-absorbing member 2, upper flexible support member 3, lower flexible support member 4, sound barrier top plate 5, sound barrier side plate 6, side wall bracket 7, slot 71, fixing bracket 8, top bracket 9. Detailed implementation manners
[0030] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present application.
[0031] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.
[0032] In the description of the present application, the term "for example" is used to mean "serving as an example, illustration, or explanation". Any embodiment described in the present application as "for example" is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the present utility model. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that the present utility model can be implemented without the use of these specific details. In other instances, well-known structures and processes are not elaborated in detail so as not to obscure the description of the present utility model with unnecessary details. Therefore, the present utility model is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in the present application.
[0033] To minimize the failure of the connection between the flexible top plate 5 of the sound barrier and the rigid side plate 6 of the sound barrier, while reducing the transmission of traffic noise to adjacent high-rise buildings and maximizing the satisfaction of the fire ventilation requirements of the sound barrier, refer to Figures 1-3 In this embodiment, a large-span fully enclosed sound barrier connection structure is provided, which specifically includes a frame member 1, a sound-absorbing member 2, an upper flexible support member 3, and a lower flexible support member 4; the sound-absorbing member 2 is fixedly arranged inside the frame member 1 along the opening direction thereof to reduce noise through the sound-absorbing member 2; the upper flexible support member 3 and the lower flexible support member 4 are respectively fixedly arranged on the top end surface and the bottom end surface on one side of the frame member 1, and the side of the lower flexible support member 4 facing away from the frame member 1 is fixedly arranged on the top of the sound barrier top plate 5. Through the upper flexible support member 3 and the lower flexible support member 4, on the one hand, the connection structure has good anti-vibration performance to adapt to elevated bridges, and on the other hand, it can adapt to the dynamic load of wind force; wherein, the side of the frame member 1 facing away from the lower flexible support member 4 is connected to the sound barrier side plate 6, and there is a gap between the sound barrier top plate 5 and the sound barrier side plate 6. The design of this structure has little influence on the original structure load, can be applied to various noise prevention projects, has a variety of application scenarios, and broad application prospects; to improve the noise reduction effect, the opening direction of the frame member 1 is the width direction of the sound barrier top plate 5.
[0034] Preferably, both the upper flexible support member 3 and the lower flexible support member 4 are rubber bellows, and the width of the rubber bellows is equal to or slightly less than the width of the top end surface of the frame member 1 to absorb and buffer the vibration caused by traffic and other loads to the maximum extent on the premise of ensuring stability and reduce the impact of vibration on the connection structure.
[0035] More specifically, refer to Figure 3 、 Figure 4, the connecting structure further includes a side wall bracket 7 arranged along the height direction of the sound barrier side plate 6, and the side wall bracket 7 is arranged in parallel with the frame member 1 to be connected to the side wall of the frame member 1 on the sound barrier side plate 6, so that the longitudinal section structure formed by the frame member 1 and the side wall bracket 7 is P-shaped. The height of the side wall bracket 7 is greater than the height of the side wall of the frame member 1 at this position to improve the stability of the sound barrier side plate 6 and the connecting structure. Optionally, a slot 71 for fitting and inserting with the sound barrier side plate 6 is provided along the height direction of the side wall bracket 7, that is, the opening direction of the slot 71 on the side wall bracket 7 is downward, and the side wall bracket 7 is inserted into the sound barrier side plate 6 from top to bottom.
[0036] To further meet the fire ventilation requirements and facilitate design, maintenance, etc., see Figure 2 、 Figure 3 , the frame member 1 is provided with several and arranged at intervals along the width direction of the sound barrier side plate 6, and is connected by the sound absorption member 2, that is, the sound absorption member 2 connects several frame members 1 in series. Preferably, the sound absorption member 2 is a sound absorption board and is welded in the frame member 1 at an angle of 40-55°. For effective noise reduction, several sound absorption boards are provided and arranged at intervals in the frame member 1 to form a dense sound absorption layer between the sound barrier top plate 5 and the sound barrier side plate 6.
[0037] Correspondingly, several side wall brackets 7 are provided, and each frame member 1 corresponds to one side wall bracket 7, which improves the connection stability of the frame member 1 and at the same time improves the support strength of the frame member 1.
[0038] In a specific implementation, see Figure 2 , the connecting mechanism of this embodiment further includes a fixed bracket 8 whose lower end surface is fixedly connected to the upper end surface of the upper flexible support member 3, which protects the upper flexible support member 3 and further fixes several upper flexible support members 3 on the sound barrier top plate 5. To improve the stability of the connecting structure of this embodiment and extend its service life, the longitudinal section structure of the fixed bracket 8 is n-shaped to form a frame structure for accommodating the upper flexible support member 3 and the lower flexible support member 4 with the sound barrier top plate 5. Wherein, the opening direction of this frame structure is consistent with the length direction of the sound barrier top plate 5, that is, the inner walls of the two pairs of sides of this n-shape are respectively in contact with the first frame member 1 and the last frame member 1 on the sound barrier top plate 5.
[0039] In the specific implementation process, see Figure 2 、 Figure 3, to enhance the bearing capacity of the top plate 5 of the sound barrier, the connecting structure further includes a plurality of top brackets 9 arranged at intervals along the length direction of the top plate 5 of the sound barrier, and the top brackets 9 are parallel to the width direction of the top plate 5 of the sound barrier; and the top brackets 9 close to the side plate 6 of the sound barrier are parallel to the fixed bracket 8 and are in contact with the bottom of the walls where the two opposite sides of the fixed bracket 8 are located, so as to enhance the bearing capacity of the top plate 5 of the sound barrier for this connecting structure;
[0040] Optionally, referring to Figure 5 , the top bracket 9 may be a ∪-shaped structure with an upward opening, and the length of the horizontal side of the ∪-shaped structure is adapted to the width of the top plate 5 of the sound barrier, so that the height of the inner walls where the two opposite sides of the ∪-shaped structure are located matches the thickness of the top plate 5 of the sound barrier, so as to be adapted to and contact the bottom of the walls where the two long sides of the fixed bracket 8 are located.
[0041] It should be noted that in the above embodiments, the descriptions of each embodiment have their own focuses. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0042] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.
[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.
Claims
1. A large-span fully enclosed sound barrier connection structure, characterized in that: It comprises a frame-shaped member (1), a sound absorbing member (2), an upper flexible support member (3), and a lower flexible support member (4); The sound absorbing member (2) is fixedly arranged inside the frame member (1) in the direction of its opening, and the upper flexible support member (3) and the lower flexible support member (4) are respectively fixedly arranged on the top end surface and the bottom end surface of one side of the frame member (1), and the side of the lower flexible support member (4) facing away from the frame member (1) is fixedly arranged on the top of the sound barrier top plate (5); Wherein, the side of the frame-shaped member (1) facing away from the lower flexible support member (4) is connected to the sound barrier side plate (6); The opening direction of the frame-shaped member (1) is the width direction of the sound barrier top plate (5).
2. A large-span fully enclosed sound barrier connection structure according to claim 1, characterized in that: The frame-shaped members (1) are provided in plurality and are arranged at intervals along the width direction of the sound barrier side panels (6) and are connected via the sound absorbing members (2).
3. A large-span fully enclosed sound barrier connection structure according to claim 1, characterized in that: The sound absorbing component (2) is welded inside the frame component (1) at an angle of 40-55°.
4. A large-span fully enclosed sound barrier connection structure according to claim 1, characterized in that: It also comprises a fixing bracket (8) whose lower end surface is fixedly connected to the upper end surface of the upper flexible support member (3).
5. A large-span fully enclosed sound barrier connection structure according to claim 4, characterized in that: The longitudinal section of the fixed bracket (8) is n-shaped so as to form a frame structure with the sound barrier top plate (5) to accommodate the upper flexible support member (3) and the lower flexible support member (4); The opening direction of the frame structure is consistent with the length direction of the sound barrier top plate (5).
6. A large-span fully enclosed sound barrier connection structure according to claim 1, characterized in that: It also includes a side wall bracket (7) arranged along the height direction of the sound barrier side plate (6), and the side wall bracket (7) is arranged parallel to the frame member (1) so as to be connected to the side wall of the frame member (1) on the sound barrier side plate (6).
7. The large-span fully enclosed sound barrier connection structure according to claim 1, characterized in that: It also comprises a plurality of top supports (9) arranged at intervals along the length direction of the sound barrier top plate (5), and the top supports (9) are parallel to the width direction of the sound barrier top plate (5).
8. The large-span fully enclosed sound barrier connection structure according to claim 1, characterized in that: The upper flexible support member (3) and the lower flexible support member (4) are both rubber bellows.
9. The large-span fully enclosed sound barrier connection structure according to claim 1, characterized in that: The sound absorbing member (2) is a sound absorbing plate.