Sound barrier suitable for bridge steel guardrail
By directly fixing the acoustic barrier on the bridge steel guardrail, using the steel guardrail as a support structure, and using H-shaped steel columns and layered sound-absorbing sound insulation plates, the problem of difficulty in installing the sound barrier and long construction cycle is solved, and the effect of reducing the installation height and construction cost is achieved.
Patent Information
- Application Number
- CN202422157116.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The sound barrier on existing bridge steel guardrails is difficult to install, has a long construction period, and increases the bridge load and construction cost.
The sound barrier is directly fixed on the steel guardrail, and the steel guardrail is used as a supporting structure to eliminate additional columns. It adopts H-shaped steel columns and layered sound-absorbing and sound insulation plates, and is fixed with anchor bolts and grooves to enhance stability and wind load resistance.
The overall height of the sound barrier is reduced, the installation process is simplified, the installation efficiency and safety are improved, and the construction costs are reduced. At the same time, the close integration and stability of the sound barrier and bridge steel guardrail are achieved.
Smart Images
Figure CN223135009U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure belongs to the technical field of municipal engineering, and particularly relates to a sound barrier applicable to bridge steel guardrails. Background Art
[0002] In recent years, with the rapid development of the economy, the scale of development of the transportation industry has continued to expand, and the environmental problems caused by traffic noise have become increasingly prominent. As an important and effective device for controlling noise pollution, sound barriers have currently been widely used in the field of traffic noise pollution prevention and control. The sound barriers on bridges are generally installed on concrete anti-collision guardrails.
[0003] Traditional concrete anti-collision guardrails on bridges have problems such as large gravity, inconvenient installation, and long construction periods. Therefore, the anti-collision guardrails on the bridge decks with steel box girders as the superstructure generally adopt steel structures, which have the advantages of fast construction speed, simple installation, and small self-weight. However, since the side of the steel guardrail is a non-closed structure, if a sound barrier is to be installed on it, there are currently two common methods. One is to replace it with a concrete anti-collision guardrail; the other is to install the sound barrier at the bridge deck position outside the steel guardrail.
[0004] If a concrete anti-collision guardrail is adopted for the steel box girder bridge deck, it will increase the upper load of the steel box girder, inevitably increase the cost, and at the same time, the installation difficulty will also increase and the construction period will become longer. If a steel guardrail is adopted, the sound barrier will be installed at the bridge deck position outside the steel guardrail. This will lead to an increase in the installation height of the sound barrier, and at the same time, the installation width of the sound barrier and the bridge deck width also need to be considered, ultimately increasing the construction cost. Summary of the Invention
[0005] The purpose of the present disclosure is to provide a sound barrier applicable to bridge steel guardrails, which can solve at least some of the above technical problems.
[0006] The first aspect of the embodiments of the present disclosure provides a sound barrier applicable to bridge steel guardrails. The steel guardrail includes a plurality of anti-collision segments connected in sequence; the sound barrier includes:
[0007] A bottom plate, fixedly connected to the steel guardrail;
[0008] A plurality of columns, fixedly spaced on the bottom plate, and the distance between adjacent two columns is equal to that of the anti-collision segment;
[0009] A plurality of sound barrier bodies, respectively fixed between adjacent two columns, and the lower end of the sound barrier body abuts against the bottom plate.
[0010] The main technical effects achieved by the embodiments of the present disclosure are as follows: Traditional sound barriers need to independently install columns on both sides of the bridge. The height of these columns plus the height of the sound barrier body often increases the overall installation height. However, in the embodiments, by directly fixing the sound barrier on the existing steel guardrail and using the steel guardrail as the support structure of the sound barrier, the additional column height is eliminated, thereby directly reducing the overall height of the sound barrier; at the same time, the close combination of the sound barrier and the bridge steel guardrail is also achieved, ensuring the stability and safety of the sound barrier. The interval fixation of the columns matches the length of the anti-collision section, ensuring the continuity and integrity of the sound barrier.
[0011] Optionally, the bottom plate includes a plurality of bottom section plates connected in sequence; the length of the bottom section plate is an integer multiple of the anti-collision section.
[0012] The main technical effects achieved by the embodiments of the present disclosure are as follows: The bottom plate is composed of a plurality of bottom section plates, and its length is an integer multiple of the anti-collision section, which enables the bottom plate to better adapt to the segmented structure of the steel guardrail, simplifies the installation process, and improves the installation efficiency.
[0013] Optionally, the column is an H-shaped steel, and the groove distribution of a single column faces the adjacent column; both ends of a single sound barrier body are respectively stuck in the grooves of two adjacent columns.
[0014] The main technical effects achieved by the embodiments of the present disclosure are as follows: Using H-shaped steel as the column, with the grooves facing the adjacent column, and combined with the design that both ends of the sound barrier body are inserted into the grooves, the fixing method of the sound barrier is enhanced, providing better wind load resistance and stability performance.
[0015] Optionally, the bottom end of the column is fixedly welded to the bottom plate and bolted to the anti-collision section through the anchor bolts at the bottom plate.
[0016] The main technical effects achieved by the embodiments of the present disclosure are as follows: The bottom end of the column is fixedly welded to the bottom plate and bolted to the anti-collision section through the anchor bolts. This double fixing method further improves the stability and anti-impact ability of the sound barrier.
[0017] Optionally, the sound barrier body sequentially includes from top to bottom:
[0018] An upper screen body, and the upper screen body is a sound-absorbing board;
[0019] A middle screen body, and the middle screen body is a sound-insulating board;
[0020] A lower screen body, and the lower screen body is a sound-absorbing board and has the same structure as the upper screen body;
[0021] Wherein, the upper screen body, the middle screen body, and the lower screen body are connected to each other through a concave-convex structure and a non-riveting welding structure.
[0022] The main technical effects achieved by the embodiments of the present disclosure are as follows: The sound barrier main body is composed of an upper sound-absorbing panel, a middle sound-insulating panel, and a lower sound-absorbing panel, which are connected through a concave-convex structure and a non-riveted welding structure, achieving good sound absorption and sound insulation effects, while ensuring the compactness and aesthetics of the structure.
[0023] Optionally, the upper screen body includes a front panel, a back panel, and sound-absorbing material located between the front panel and the back panel, wherein the front panel is a perforated aluminum alloy plate; the back panel is a galvanized steel plate; and the sound-absorbing material is centrifugal glass wool.
[0024] The main technical effects achieved by the embodiments of the present disclosure are as follows: The upper screen body uses a perforated aluminum alloy front panel and a back panel, with centrifugal glass wool filled in the middle. This structure not only provides high-efficiency sound absorption performance but also reduces the weight of the overall sound barrier due to the light weight of the materials.
[0025] Optionally, the middle screen body includes a plate body and a frame sleeved around the plate body, a rubber strip is padded between the plate body and the frame, and the plate body is an acrylic plate.
[0026] The main technical effects achieved by the embodiments of the present disclosure are as follows: The middle screen body uses an acrylic plate and an aluminum alloy frame. With the shock absorption and sealing effects of the rubber strip, the sound insulation effect is enhanced. At the same time, the double-sided spraying of the frame provides good durability and protection.
[0027] Optionally, the sound barrier main body further includes a plurality of rubber pads; the plurality of rubber pads are respectively filled in the gaps between the upper screen body and the middle screen body, and the gaps between the middle screen body and the lower screen body.
[0028] The main technical effects achieved by the embodiments of the present disclosure are as follows: Using rubber pads to fill the gaps between the screen bodies effectively prevents sound leakage and improves the overall sound insulation effect of the sound barrier.
[0029] Optionally, the sound barrier further includes an upper cover plate and a lower cover plate; the upper cover plate is used to cover the upper screen body, the lower cover plate is used to cover the lower screen body, and the outer surfaces of the upper cover plate and the lower cover plate are both subjected to powder electrostatic spraying, and the coating thickness is ≥60μm.
[0030] The main technical effects achieved by the embodiments of the present disclosure are as follows: The design of the upper cover plate and the lower cover plate not only protects the sound-absorbing panel and the sound-insulating panel from being eroded by external environmental factors but also provides additional protection and aesthetic effects through powder electrostatic spraying treatment.
[0031] Optionally, the sound barrier further includes a plurality of anti-collision chains; the anti-collision chains are arranged between adjacent sound barrier main bodies, and the sound barrier main bodies are fixed to adjacent columns by using stainless steel wire rope self-locking.
[0032] The main technical effects achieved by the embodiments of the present disclosure are as follows: an anti-collision chain is provided, and the main body of the sound barrier is self-locked and fixed using a stainless steel wire rope, enhancing the anti-impact ability of the sound barrier, preventing damage or falling caused by accidental impact, and improving safety. Description of the Drawings
[0033] Figure 1 It is the front view of a sound barrier applicable to a bridge steel guardrail in the embodiments of the present disclosure;
[0034] Figure 2 It is the side view of a sound barrier applicable to a bridge steel guardrail in the embodiments of the present disclosure.
[0035] Description of the reference numerals in the drawings: 1, anti-collision section; 2, bottom plate; 3, column; 4, main body of the sound barrier; 40, upper screen body; 41, middle screen body; 42, lower screen body; 5, upper cover plate; 6, lower cover plate; 7, anti-collision chain. Detailed Embodiments
[0036] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numerals in different drawings represent the same or similar elements. The methods described in the following exemplary embodiments do not represent all the ways consistent with the present disclosure. On the contrary, they are only examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.
[0037] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. Unless otherwise defined, the technical terms or scientific terms used in this disclosure shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second" and similar words used in the specification and claims of this disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not denote a quantity limitation, but rather indicate the presence of at least one, and will be further specified separately if only referring to "one". "Plurality" or "several" means two or more. Unless otherwise indicated, words such as "front", "rear", "lower" and / or "upper" are for convenience of description only and are not limited to one position or a spatial orientation. Words such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalents, and do not exclude other elements or items. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, and may include electrical connections, whether direct or indirect. The singular forms "a", "the" and "said" used in the specification and appended claims of this disclosure are also intended to include the plural forms unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
[0038] Refer to the appended Figure 1 and the appended Figure 2 , embodiments of the present disclosure provide a sound barrier applicable to bridge steel guardrails. Through optimized structural design, the sound barrier achieves a reduction in installation height, a decrease in construction costs, and an improvement in installation efficiency and safety.
[0039] The steel guardrail includes a plurality of anti-collision segments 1 connected in sequence, and the length of the steel guardrail is generally 2 m.
[0040] Continue to refer to the appended Figure 1 and the appended Figure 2 , the sound barrier includes a bottom plate 2, a plurality of columns 3 and a plurality of sound barrier bodies 4.
[0041] The bottom plate 2 is composed of multiple sequentially connected bottom segments, and the length of each bottom segment is an integer multiple of the anti-collision segment 1, ensuring a tight fit between the bottom plate 2 and the steel guardrail. This design simplifies the installation process because the bottom plate 2 can be directly aligned with the steel guardrail, reducing the work of adjustment and alignment. As an alternative implementation, the length of the bottom plate 2 can also be the same as that of the anti-collision segment 1, designed to be 2m, to facilitate the fixation between the bottom plate 2 and the anti-collision segment 1. The matching design of the bottom plate 2 and the anti-collision segment 1, as well as the welding and fixing method of the column 3 and the bottom plate 2, simplifies the installation steps and improves the construction speed.
[0042] The column 3 is made of H-shaped steel, with good bending and torsional resistance. The bottom end of the column 3 is welded and fixed to the bottom plate 2 and bolted to the anti-collision segment 1 through the anchor bolts at the bottom plate 2, providing stable support. As an alternative implementation, the size of the column 3 is 150x150x7x10mm, and the spacing of the columns 3 is equal to the length of the anti-collision segment 1, ensuring the continuity and integrity of the sound barrier main body 4.
[0043] The sound barrier main body 4 is fixed between two adjacent columns 3, and the lower end of the sound barrier main body 4 abuts against the bottom plate 2.
[0044] Traditional sound barriers need to independently install columns 3 on both sides of the bridge. The height of these columns 3 plus the height of the sound barrier main body 4 often increases the overall installation height. In this embodiment, by directly fixing the sound barrier to the existing steel guardrail and using the steel guardrail as the support structure of the sound barrier, the additional height of the column 3 is eliminated, thereby directly reducing the overall height of the sound barrier; at the same time, the close combination of the sound barrier and the bridge steel guardrail is also achieved, ensuring the stability and safety of the sound barrier. The spaced fixation of the columns 3 matches the length of the anti-collision segment 1, ensuring the continuity and integrity of the sound barrier.
[0045] As an alternative implementation, the sound barrier main body 4 is composed of an upper screen body 40, a middle screen body 41, and a lower screen body 42, which are respectively fixed between two adjacent columns 3. The upper screen body 40 and the lower screen body 42 are sound-absorbing panels, and the middle screen body 41 is a sound-insulating panel. This layered design improves the sound insulation effect of the sound barrier.
[0046] As an alternative implementation, the screen bodies are connected by upper and lower concave-convex grooves + non-riveted welding structure, and the connection gaps are sealed with ethylene propylene diene monomer rubber gaskets to ensure the sealing and overall stability between the screen bodies.
[0047] As an alternative implementation, the sound barrier further includes an upper cover plate 5 and a lower cover plate 6; the upper cover plate 5 and the lower cover plate 6 respectively cover the outside of the upper screen body 40 and the lower screen body 42, and are respectively made of 1.5mm thick galvanized steel plate and aluminum alloy material, and the outer surface is subjected to powder electrostatic spraying, and the coating thickness ≥60μm, improving the weather resistance and aesthetics.
[0048] As an optional implementation, an anti-collision chain 7 is provided between two adjacent sound barrier bodies 4. The 304 stainless steel wire rope with a diameter of 2xφ8 is self-locked to fix the sound barrier body 4 on the adjacent columns 3, enhancing the anti-impact ability of the sound barrier. The use of the anti-collision chain 7 and the stable connection of the columns 3 improve the wind load resistance and anti-impact ability of the sound barrier, ensuring the safety during long-term use.
[0049] The above are only the preferred embodiments of the present disclosure and are not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present disclosure shall be included within the scope of protection of the present disclosure.
Claims
1. A sound barrier applicable to a bridge steel guardrail, the steel guardrail comprising a plurality of anti-collision segments connected in sequence; characterized in that, The sound barrier includes: A bottom plate, fixedly connected to the steel guardrail; A plurality of columns, fixedly spaced on the bottom plate, and the distance between two adjacent columns is equal to the anti-collision segment; A plurality of sound barrier bodies, respectively fixed between two adjacent columns, and the lower end of the sound barrier body abuts against the bottom plate; The bottom plate includes a plurality of bottom section plates connected in sequence; the length of the bottom section plate is an integer multiple of the anti-collision segment; The sound barrier further includes a number of anti-collision chains; the anti-collision chains are arranged between two adjacent sound barrier bodies, and the sound barrier bodies are fixed to the adjacent columns by stainless steel wire rope self-locking.
2. The sound barrier applicable to the bridge steel guardrail according to claim 1, characterized in that, The column is an H-shaped steel, and the groove distribution of a single column faces the adjacent column; both ends of a single sound barrier body are respectively stuck in the grooves of two adjacent columns.
3. The sound barrier applicable to the bridge steel guardrail according to claim 1, characterized in that The bottom end of the column is fixedly welded to the bottom plate, and is bolted to the anti-collision segment through the anchor bolts at the bottom plate.
4. The sound barrier applicable to the bridge steel guardrail according to claim 3, characterized in that, The sound barrier body successively includes from top to bottom: An upper screen body, the upper screen body being a sound-absorbing panel; A middle screen body, the middle screen body being a sound-insulating panel; A lower screen body, the lower screen body being a sound-absorbing panel and having the same structure as the upper screen body; Among them, the upper screen body, the middle screen body and the lower screen body are connected to each other through a concave-convex structure and a non-riveted welding structure.
5. The sound barrier applicable to a bridge steel guardrail according to claim 4, characterized in that, The upper screen body includes a panel, a back plate and a sound-absorbing material located between the panel and the back plate. Among them, the panel is a perforated aluminum alloy plate; the back plate is a galvanized steel plate; the sound-absorbing material is centrifugal glass wool.
6. The sound barrier applicable to the bridge steel guardrail according to claim 5, characterized in that, The middle screen body includes a plate body and a frame sleeved around the plate body. A rubber strip is padded between the plate body and the frame, and the plate body is an acrylic plate.
7. The sound barrier applicable to the bridge steel guardrail according to claim 5, wherein The sound barrier body further includes a number of rubber pads; the number of rubber pads are respectively filled in the gaps between the upper screen body and the middle screen body, and the gaps between the middle screen body and the lower screen body.
8. The sound barrier applicable to the bridge steel guardrail according to claim 4, characterized in that, The sound barrier further includes an upper cover plate and a lower cover plate; the upper cover plate is used to cover the upper screen body, the lower cover plate is used to cover the lower screen body, and the outer surfaces of the upper cover plate and the lower cover plate are both subjected to powder electrostatic spraying, and the coating thickness ≥ 60μm.