A prestressed concrete pipe pile foundation device for a sound barrier

Abstract

The utility model discloses a prestressed concrete pipe pile foundation device for sound barrier belongs to sound barrier technical field, including sound absorption subassembly, the lower extreme of sound absorption subassembly sets up fixed component, and fixed component interval sets up several, and several fixed components are connected through connecting component, fixed component includes upper portion stand column embedded steel sheet, H type steel stand column, rib plate, anchor bolt, prestressed concrete pipe pile and concrete block, and the upper end of upper portion stand column embedded steel sheet sets up H type steel stand column, and the both ends of H type steel stand column set up rib plate, the upper end of upper portion stand column embedded steel sheet interval sets up several anchor bolts, and the lower extreme of anchor bolt is inserted into the cavity of prestressed concrete pipe pile and inserts to the cavity in prestressed concrete pipe pile in the upper portion stand column embedded steel sheet, and the cavity in prestressed concrete pipe pile sets up concrete block. Can effectively promote the connection strength and rigidity, and the stress under the dual action of strong wind and deadweight is dispersed, avoids the firmness drop, guarantees the safe and stable operation of device in strong wind area.

Description

Technical Field

[0001] This utility model belongs to the field of sound barrier technology, specifically relating to a prestressed concrete pipe pile foundation device for sound barriers. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] With the acceleration of urbanization and the continuous improvement of transportation networks, noise pollution from roads, railways and other transportation facilities has become a prominent issue affecting the quality of life of surrounding residents. As a key facility for effectively blocking the spread of noise, sound barriers are widely used along transportation routes and around industrial noise sources.

[0004] As the core support of a sound barrier, the foundation structure's robustness and stability directly determine the entire system's safety performance, noise reduction effect, and service life. This is especially crucial in areas prone to strong winds, such as coastal and plateau regions, where the foundation structure must withstand continuous and intense wind loads, making wind resistance a core design indicator. In strong wind environments, sound barriers and integrated devices not only face enormous lateral wind pressure, but long-term wind action can also induce structural fatigue, potentially leading to panel deformation, loosening of supports, or even complete collapse.

[0005] Existing sound barrier foundations employ prestressed concrete pipe piles inserted below ground level, with a reinforcing cage installed in the hollow top section and a foundation cap poured, creating a continuous concrete structure. Anchor bolts and flanges pre-embedded within the foundation connect the sound barrier columns, enhancing overall shear and pull-out resistance. This scheme, by optimizing the foundation connection structure, addresses the issue of insufficient bond between concrete and support components in traditional sound barrier foundations, improving resistance to strong wind loads. However, the overall weight of the device increases significantly due to the integration of photovoltaic modules. This added weight doubles the load-bearing pressure on the foundation structure. The existing foundation's connection strength and overall rigidity cannot fully match this load change. Under the combined effects of strong winds and its own weight, stress concentration easily occurs at structural connections, leading to decreased stability. Utility Model Content

[0006] To address the aforementioned issues, this utility model provides a prestressed concrete pipe pile foundation device for sound barriers, which can effectively improve connection strength and rigidity, disperse stress under the combined effects of strong winds and self-weight, avoid a decrease in stability, and ensure the safe and stable operation of the device in areas with strong winds.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A prestressed concrete pipe pile foundation device for a sound barrier includes a sound-absorbing component, a fixing component is provided at the lower end of the sound-absorbing component, several fixing components are arranged at intervals, and several fixing components are connected by a connecting component. The fixing assembly includes an upper column embedded steel plate, an H-shaped steel column, ribs, anchor bolts, a prestressed concrete pipe pile, and a concrete sealing block. An H-shaped steel column is installed at the upper end of the upper column embedded steel plate, and ribs are installed at both ends of the H-shaped steel column. Several anchor bolts are spaced apart at the upper end of the upper column embedded steel plate. The lower end of each anchor bolt penetrates the upper column embedded steel plate and is inserted into the cavity of the prestressed concrete pipe pile. A concrete sealing block is installed in the cavity of the prestressed concrete pipe pile. The upper end of the concrete sealing block is filled with micro-expansion concrete, and the lower end of the anchor bolt is located within the micro-expansion concrete. The end of the anchor bolt has an arc-shaped structure.

[0008] A prestressed concrete pipe pile foundation device for a sound barrier includes a sound-absorbing component, a fixing component is provided at the lower end of the sound-absorbing component, several fixing components are arranged at intervals, and several fixing components are connected by a connecting component. The fixing assembly includes an upper column embedded steel plate, an H-shaped steel column, ribs, a prestressed concrete pipe pile, and a concrete sealing block. The lower end of the H-shaped steel column is located in the cavity of the prestressed concrete pipe pile, and a concrete sealing block is installed in the cavity of the prestressed concrete pipe pile. The upper end of the concrete sealing block is filled with micro-expansion concrete. The lower end of the H-shaped steel column is provided with an upper column embedded steel plate, and ribs are provided at both ends of the upper column embedded steel plate. The ribs, the lower end of the H-shaped steel column, and the upper column embedded steel plate are all located within the micro-expansion concrete.

[0009] As a further technical solution, several ribs are spaced apart, one end of each rib is fixedly connected to the H-shaped steel column, and the other end of each rib is fixedly connected to the pre-embedded steel plate of the upper column.

[0010] As a further technical solution, a lower cover plate is also provided at the upper end of the H-shaped steel column. One end of the lower cover plate is fixedly connected to the H-shaped steel column, and the lower end of the lower cover plate is flush with the road surface.

[0011] As a further technical solution, the outer side of the prestressed concrete pipe pile is provided with cement mortar, which covers the outer side of the prestressed concrete pipe pile.

[0012] As a further technical solution, the connecting assembly includes hollow square piles, stirrups, prestressed steel bars, nuts, end plates, and pile sleeves; The hollow square pile is equipped with stirrups inside, and prestressed steel bars are installed at both ends of the stirrups. The ends of the prestressed steel bars are equipped with embedded nuts, and steel bars are installed inside the embedded nuts. One end of the steel bars is located in the cavity of the prestressed concrete pipe pile.

[0013] As a further technical solution, an end plate is provided at the end of the hollow square pile, and a pile sleeve is provided on the outside of the hollow square pile; the cavity of the prestressed concrete pipe pile is provided with post-lapped steel bars, and several steel bars are spaced apart, with the post-lapped steel bars arranged between the several steel bars.

[0014] As a further technical solution, the sound-absorbing component includes a top cover plate, a first louvered sound-absorbing panel, a second louvered sound-absorbing panel, a first aluminum alloy frame, laminated glass, and a second aluminum alloy frame. The lower end of the top cover is provided with a first aluminum alloy frame, and a first louvered sound-absorbing plate and a second louvered sound-absorbing plate are provided on the first aluminum alloy frame.

[0015] As a further technical solution, a second aluminum alloy frame is provided at the lower end of the first aluminum alloy frame, and laminated glass is provided on the second aluminum alloy frame.

[0016] As a further technical solution, an H-shaped steel column is provided at the lower end of the second aluminum alloy frame, and a louvered sound-absorbing panel is provided inside the H-shaped steel column.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are: This utility model features an anchor bolt whose lower end penetrates the pre-embedded steel plate in the upper column and extends deep into the cavity of the prestressed concrete pipe pile. The end of the bolt has an arc-shaped structure, increasing the contact area and mechanical engagement with the micro-expansion concrete. The micro-expansion concrete fills the upper part of the concrete sealing block, and after curing, forms a tight bond with the anchor bolt. This, combined with the surface contact connection between the pre-embedded steel plate in the upper column and the H-shaped steel column, allows the load borne by the H-shaped steel column to be directly transferred to the core of the pipe pile through the anchor bolt. This prevents loosening or stress shifting at the connection node, improving the overall connection strength and structural rigidity.

[0018] The ribs at both ends of the H-shaped steel column form a triangular support structure, which transforms the self-weight of the sound-absorbing components and the strong wind load into pressure evenly distributed along the H-shaped steel column, avoiding load concentration at the connection point between the column and the embedded steel plate. Simultaneously, the spaced anchor bolts decompose the concentrated load into multiple points of stress. Through the conduction effect of the micro-expansion concrete, the stress is dispersed throughout the prestressed concrete pipe pile, effectively mitigating the superimposed stress of the horizontal thrust of strong winds and the vertical pressure of the structure's self-weight, preventing a decrease in stability due to localized stress overload. This invention employs a design where the lower end of an H-shaped steel column extends directly into the cavity of a prestressed concrete pipe pile. This, combined with the pre-embedded steel plate and ribs in the upper column, forms an integrated connection node. Furthermore, the ribs, the lower end of the H-shaped steel column, and the pre-embedded steel plate in the upper column are all completely encased in micro-expansion concrete. This embedded structure allows the upper structure and the pipe pile to form an integral structure, enhancing the rigidity of the connection, ensuring no stress loss during load transfer, and improving connection reliability. The H-beam steel column bears the weight of the sound-absorbing components and the load from strong winds, which is then directly transferred to the micro-expansion concrete at its lower end. From there, the micro-expansion concrete evenly transmits the load to the prestressed concrete pipe pile. The ribs at both ends of the steel plates embedded in the upper column not only enhance the H-beam steel column's resistance to lateral bending but also transform the horizontal force from strong winds on the column's sides into pressure distributed along the ribs, dispersing it into the micro-expansion concrete and preventing concentrated horizontal loads that could cause cracking at the column's base. The first and second aluminum alloy frames of this utility model provide rigid support for the internal sound-absorbing panel and laminated glass, making the sound-absorbing assembly a whole force-bearing unit and preventing individual sound-absorbing components from shaking or breaking due to strong winds. The laminated glass not only enhances the impact resistance of the sound-absorbing assembly, but also works with the louvered sound-absorbing panel to form a reasonable wind load bearing surface, reducing the impact of strong winds on the device and indirectly improving the stability of the overall structure. The connecting component of this utility model connects several fixed components arranged at intervals into a unified whole. Through the connecting component's pulling effect, when a fixed component is subjected to a large strong wind load, the load can be transferred to the adjacent fixed components through the connecting component, realizing the lateral distribution of the load and preventing the failure of a single fixed component due to overload. At the same time, the connecting component makes the entire sound barrier device form a continuous rigid structure, improving the overall lateral bending resistance of the device, reducing the overall deformation under strong wind, and further ensuring the safe and stable operation of the device in strong wind areas. Attached Figure Description The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0019] Figure 1 This is the structure of the prestressed concrete pipe pile foundation device for a sound barrier according to Embodiment 1 of this utility model. Figure 1 ; Figure 2 This is the structure of the prestressed concrete pipe pile foundation device for a sound barrier according to Embodiment 1 of this utility model. Figure 2 ; Figure 3 This is the structure of the prestressed concrete pipe pile foundation device for a sound barrier according to Embodiment 1 of this utility model. Figure 3 ; Figure 4 This is the structure of the prestressed concrete pipe pile foundation device for a sound barrier according to Embodiment 1 of this utility model. Figure 4 ; Figure 5 This is the structure of the prestressed concrete pipe pile foundation device for a sound barrier according to Embodiment 2 of this utility model. Figure 1 ; Figure 6 This is the structure of the prestressed concrete pipe pile foundation device for sound barriers according to Embodiment 2 of this utility model. Figure 2 ; Figure 7 This is the structure of the prestressed concrete pipe pile foundation device for sound barriers according to Embodiment 2 of this utility model. Figure 3 ; Figure 8 This is the structure of the prestressed concrete pipe pile foundation device for a sound barrier according to Embodiment 2 of this utility model. Figure 4 ; Figure 9 This is a structural schematic diagram of the hollow square pile of this utility model; Figure 10 This is a structural schematic diagram of the prestressed concrete pipe pile of this utility model. Figure 1 ; Figure 11 This is a structural schematic diagram of the prestressed concrete pipe pile of this utility model. Figure 2 ; Figure 12 This is a structural schematic diagram of the prestressed concrete pipe pile of this utility model. Figure 3 ; Figure 13 This is a structural schematic diagram of the prestressed concrete pipe pile of this utility model. Figure 4 ; In the diagram: 1. Top cover plate; 2. First louvered sound-absorbing panel; 3. Second louvered sound-absorbing panel; 4. First aluminum alloy frame; 5. Laminated glass; 6. Second aluminum alloy frame; 7. H-shaped steel column; 8. Lower cover plate; 9. Rib plate; 10. Embedded steel plate of upper column; 11. Prestressed concrete pipe pile; 12. Concrete sealing block; 13. Micro-expansion concrete; 14. Cement mortar; 15. Post-lapped reinforcing bar; 16. Reinforcing bar; 17. Hollow square pile; 171. Stirrup; 172. Prestressed reinforcing bar; 173. Embedded nut; 174. End plate; 175. Pile sleeve hoop; 18. Anchor bolt. Detailed Implementation

[0020] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0021] Existing sound barrier foundations employ prestressed concrete pipe piles inserted below ground level, with a reinforcing cage installed in the hollow top section and a foundation cap poured, creating a continuous concrete structure. Anchor bolts and flanges pre-embedded within the foundation connect the sound barrier columns, enhancing overall shear and pull-out resistance. This scheme, by optimizing the foundation connection structure, addresses the issue of insufficient bond between concrete and support components in traditional sound barrier foundations, improving resistance to strong wind loads. However, the overall weight of the device increases significantly due to the integration of photovoltaic modules. This added weight doubles the load-bearing pressure on the foundation structure. The existing foundation's connection strength and overall rigidity cannot fully match this load change. Under the combined effects of strong winds and its own weight, stress concentration easily occurs at structural connections, leading to decreased stability.

[0022] Example 1 The present invention will now be described in detail with reference to the accompanying drawings. This embodiment discloses a prestressed concrete pipe pile foundation device for a sound barrier, such as... Figure 1 As shown, it includes a sound-absorbing component, a fixing component is provided at the lower end of the sound-absorbing component, several fixing components are arranged at intervals, and several fixing components are connected by connecting components; The fixing components include an upper column embedded steel plate 10, an H-shaped steel column 7, ribs 9, anchor bolts 18, a prestressed concrete pipe pile 11, and a concrete sealing block 12. The upper end of the upper column embedded steel plate 10 is provided with an H-shaped steel column 7, and ribs 9 are provided at both ends of the H-shaped steel column 7. Several anchor bolts 18 are spaced apart at the upper end of the upper column embedded steel plate 10. The lower end of the anchor bolt 18 passes through the upper column embedded steel plate 10 and is inserted into the cavity of the prestressed concrete pipe pile 11. A concrete sealing block 12 is provided in the cavity of the prestressed concrete pipe pile 11. The upper end of the concrete sealing block 12 is filled with micro-expansion concrete 13. The lower end of the anchor bolt 18 is located in the micro-expansion concrete 13. The end of the anchor bolt 18 has an arc-shaped structure.

[0023] Specifically, the lower end of the anchor bolt 18 penetrates the pre-embedded steel plate 10 of the upper column and extends into the cavity of the prestressed concrete pipe pile 11. Its end features an arc-shaped structure, increasing the contact area and mechanical engagement with the micro-expansion concrete 13. The micro-expansion concrete 13 fills the upper end of the concrete sealing block 12. After curing, it forms a tight bond with the anchor bolt 18. This, combined with the surface contact connection between the pre-embedded steel plate 10 of the upper column and the H-shaped steel column 7, allows the load borne by the H-shaped steel column 7 to be directly transferred to the core of the pipe pile through the anchor bolt 18. This prevents loosening or force displacement at the connection node, improving the overall connection strength and structural rigidity.

[0024] The ribs 9 at both ends of the H-shaped steel column 7 form a triangular support structure, which transforms the self-weight and strong wind load transmitted by the sound-absorbing components into pressure evenly distributed along the H-shaped steel column 7, avoiding load concentration at the connection point between the column and the embedded steel plate. At the same time, the spaced anchor bolts 18 decompose the concentrated load into multiple points of force, and through the conduction effect of the micro-expansion concrete 13, the stress is dispersed to the entire area of ​​the prestressed concrete pipe pile 11, effectively relieving the superimposed stress of the horizontal thrust of strong wind and the vertical pressure of the structure's self-weight, and preventing the decrease in stability caused by local stress overload.

[0025] Several ribs 9 are spaced apart. One end of the rib 9 is fixedly connected to the H-shaped steel column 7, and the other end of the rib 9 is fixedly connected to the pre-embedded steel plate 10 of the upper column.

[0026] Specifically, based on the weight of the sound-absorbing components that the H-shaped steel column 7 needs to bear and the intensity of strong wind load, determine the number of ribs 9 and their distribution spacing. If the column needs to bear a large lateral wind pressure, ribs 9 can be symmetrically arranged along both sides of the column. The spacing between adjacent ribs 9 should be controlled within the range of load transfer to ensure that each rib 9 can share the load.

[0027] During assembly, first, one side of the rib plate 9 is tightly fitted to the side wall of the H-shaped steel column 7 and fixed by welding to ensure that the connection point is secure and that the rib plate 9 and the column form a stable whole. Then, the other side of the rib plate 9 is aligned with the upper surface of the embedded steel plate 10 of the upper column and fixed using the same connection method, so that the rib plate 9 is in an inclined or vertical state, constructing a triangular support structure between the column and the embedded steel plate. This distributes the vertical self-weight and horizontal wind load borne by the H-shaped steel column 7 to the embedded steel plate 10 of the upper column through the rib plate 9, avoiding load concentration at the connection edge between the column and the embedded steel plate and reducing the risk of stress cracking in this area.

[0028] The upper end of the H-shaped steel column 7 is also provided with a lower cover plate 8. One end of the lower cover plate 8 is fixedly connected to the H-shaped steel column 7, and the lower end of the lower cover plate 8 is flush with the road surface.

[0029] Specifically, first, align one end of the lower cover plate 8 with the upper outer wall of the H-beam steel column 7, and fix it by welding or bolts to ensure a firm connection between the lower cover plate 8 and the column without any shaking. Then, adjust the horizontal angle of the lower cover plate 8 so that its lower end face is close to the road surface, thus shielding the base of the H-beam steel column 7 at the junction with the road surface. This prevents rainwater and debris from entering the connection area between the column and the foundation, and also creates a smooth transition between the appearance of the device and the road surface, reducing the direct impact of strong winds on the connection area.

[0030] The prestressed concrete pipe pile 11 is provided with cement mortar 14 on the outside, and the cement mortar 14 covers the outside of the prestressed concrete pipe pile 11.

[0031] Specifically, cement mortar 14 is evenly applied to the outer side of the pipe pile to ensure a consistent coating thickness. The coating area should extend from the bottom of the pipe pile to a certain height above the ground surface, completely covering the portion of the pipe pile exposed to the soil and air.

[0032] The connecting components include a hollow square pile 17, stirrups 171, prestressed steel bars 172, embedded nuts 173, end plates 174, and pile sleeve 175. Stirrups 171 are provided inside the hollow square pile 17, and prestressed steel bars 172 are provided at both ends of the stirrups 171. Embedded nuts 173 are provided at the ends of the prestressed steel bars 172, and steel bars 16 are provided inside the embedded nuts 173. One end of the steel bars 16 is located in the cavity of the prestressed concrete pipe pile 11.

[0033] Specifically, prestressed steel bars 172 are installed at both ends of the stirrups 171, and embedded nuts 173 are installed at the ends of the prestressed steel bars 172. The embedded nuts 173 must be coaxially aligned with the prestressed steel bars 172 and firmly fixed to prevent misalignment during the subsequent installation of the steel bars 16. Finally, one end of the steel bar 16 is screwed into the embedded nut 173, and the extension length of the steel bar 16 is adjusted so that the other end of the steel bar 16 extends into the cavity of the prestressed concrete pipe pile 11, and a connection space is reserved with the micro-expansion concrete 13 or other structures in the cavity to achieve the stress connection between the connecting component and the fixing component.

[0034] The hollow square pile 17 is provided with an end plate 174 at its end and a pile sleeve hoop 175 on the outside of the hollow square pile 17; the cavity of the prestressed concrete pipe pile 11 is provided with a post-lapped steel bar 15, and several steel bars 16 are arranged at intervals, with the post-lapped steel bar 15 arranged between several steel bars 16.

[0035] Specifically, the end plate 174 is aligned with both ends of the hollow square pile 17. The dimensions of the end plate 174 must match the cross-sectional dimensions of the hollow square pile 17 to ensure complete coverage of the end section of the hollow square pile 17. The end plate 174 is then fixed to the end of the hollow square pile 17 by welding or bolting. During welding, it is necessary to ensure that there is no gap at the connection between the end plate 174 and the hollow square pile 17. When using bolts, it is necessary to ensure that the bolts are tightened to prevent the end plate 174 from loosening. Subsequently, pile sleeves 175 are installed on the outside of the hollow square pile 17. The pile sleeves 175 need to be spaced along the length of the hollow square pile 17 or added in key areas at the end. They are fixed by bolts or welding to enhance the compressive strength of the end of the hollow square pile 17 and prevent deformation of the end of the connecting component under stress.

[0036] In the cavity reinforcement work of prestressed concrete pipe pile 11, several steel bars 16 are first laid in the cavity at preset intervals. The steel bars 16 need to be vertically distributed along the height direction of the cavity, with one end contacting the concrete sealing block 12 at the bottom of the cavity and the other end extending to the middle or upper part of the cavity. Then, the lapped steel bars 15 are arranged horizontally between these vertical steel bars 16 and fixed by welding or binding, so that the lapped steel bars 15 and the vertical steel bars 16 form a mesh structure. This reinforcement structure can enhance the overall strength of the micro-expansion concrete 13 in the cavity of the pipe pile, improve the synergistic stress-bearing effect of the steel bars 16 and the concrete, and avoid local damage to the cavity of the pipe pile when bearing load.

[0037] Specifically, the connecting components connect several fixed components arranged at intervals into a unified whole. Through the connecting components' tie-down effect, when a fixed component is subjected to a large strong wind load, the load can be transferred to the adjacent fixed components through the connecting components, realizing the lateral distribution of the load and preventing the failure of a single fixed component due to overload. At the same time, the connecting components make the entire sound barrier device form a continuous rigid structure, improving the overall resistance to lateral bending of the device, reducing the overall deformation under strong wind, and further ensuring the safe and stable operation of the device in strong wind areas.

[0038] The sound-absorbing assembly includes a top cover plate 1, a first louvered sound-absorbing panel 2, a second louvered sound-absorbing panel 3, a first aluminum alloy frame 4, laminated glass 5, and a second aluminum alloy frame 6. The first aluminum alloy frame 4 is located at the lower end of the top cover plate 1, and the first louvered sound-absorbing panel 2 and the second louvered sound-absorbing panel 3 are mounted on the first aluminum alloy frame 4. The second aluminum alloy frame 6 is located at the lower end of the first aluminum alloy frame 4, and the laminated glass 5 is mounted on the second aluminum alloy frame 6. An H-shaped steel column 7 is located at the lower end of the second aluminum alloy frame 6, and the louvered sound-absorbing panel is installed inside the H-shaped steel column 7.

[0039] Specifically, the first aluminum alloy frame 4 and the second aluminum alloy frame 6 of the sound-absorbing component provide rigid support for the internal sound-absorbing panel and the laminated glass 5, making the sound-absorbing component form an integral force-bearing unit and preventing individual sound-absorbing components from shaking or breaking due to strong winds. The laminated glass 5 not only enhances the impact resistance of the sound-absorbing component, but also works with the louvered sound-absorbing panel to form a reasonable wind load bearing surface, reducing the impact of strong winds on the device and indirectly improving the stability of the overall structure.

[0040] The prestressed concrete pipe pile 11 (PHC) is characterized by driving a C80 prestressed concrete pipe pile 11 (PHC) with an outer diameter of Φ80cm, a wall thickness of 11cm, and a pile length of 250cm every 2m along the road direction on the outer side of the earthen shoulder. The pile length can be adjusted according to the geological conditions and bearing capacity calculation results. The ground beam adopts a C30 reinforced concrete structure with a rectangular cross section of 30×30cm. To ensure effective connection and overall stress distribution between the ground beam and the prestressed concrete pipe pile 11 (PHC), a support plate is installed 70m away from the top of the prestressed concrete pipe pile 11 (PHC). The support plate is made of a circular steel plate with a diameter of Φ58cm and a thickness of 5mm. The pre-embedded steel bars of the ground beam are welded to the support plate, and C30 micro-expansion concrete 13 is poured to fill the core, forming a closed connection section. This ensures effective connection while preventing external water from entering the pipe pile, causing corrosion and affecting durability.

[0041] Example 2 A prestressed concrete pipe pile foundation device for a sound barrier includes a sound-absorbing component, a fixing component at the lower end of the sound-absorbing component, several fixing components spaced apart, and several fixing components connected by a connecting component. The fixing components include an upper column embedded steel plate 10, an H-shaped steel column 7, ribs 9, a prestressed concrete pipe pile 11, and a concrete sealing block 12. The lower end of the H-shaped steel column 7 is located in the cavity of the prestressed concrete pipe pile 11. The concrete sealing block 12 is installed in the cavity of the prestressed concrete pipe pile 11, and the upper end of the concrete sealing block 12 is filled with micro-expansion concrete 13. The lower end of the H-shaped steel column 7 is provided with the upper column embedded steel plate 10, and ribs 9 are provided at both ends of the upper column embedded steel plate 10. The ribs 9, the lower end of the H-shaped steel column, and the upper column embedded steel plate 10 are all located within the micro-expansion concrete 13.

[0042] Specifically, the design employs an H-shaped steel column 7 whose lower end extends directly into the cavity of the prestressed concrete pipe pile 11. This, combined with the pre-embedded steel plate 10 in the upper column and the rib plate 9, forms an integrated connection node. Furthermore, the rib plate 9, the lower end of the H-shaped steel column 7, and the pre-embedded steel plate 10 in the upper column are all completely encased in micro-expansion concrete 13. This embedded structure allows the upper structure and the pipe pile to form an integral structure, enhancing the rigidity of the connection, ensuring no stress loss during load transfer, and improving connection reliability.

[0043] The sound-absorbing components' self-weight and strong wind load, borne by the H-shaped steel column 7, are directly transferred to the micro-expansion concrete 13 through its lower end, and then evenly transmitted to the prestressed concrete pipe pile 11 by the micro-expansion concrete 13. The ribs 9 at both ends of the embedded steel plate 10 in the upper column not only enhance the lateral bending resistance of the H-shaped steel column 7, but also convert the strong wind horizontal force borne by the side of the column into pressure distributed along the ribs 9, dispersing it into the interior of the micro-expansion concrete 13, thus avoiding cracking at the base of the column due to concentrated horizontal load.

[0044] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A prestressed concrete pipe pile foundation device for a sound barrier, characterized in that, It includes a sound-absorbing component, and a fixing component is provided at the lower end of the sound-absorbing component. Several fixing components are arranged at intervals, and several fixing components are connected by a connecting component. The fixing assembly includes an upper column embedded steel plate, an H-shaped steel column, ribs, anchor bolts, a prestressed concrete pipe pile, and a concrete sealing block. An H-shaped steel column is installed at the upper end of the upper column embedded steel plate, and ribs are installed at both ends of the H-shaped steel column. Several anchor bolts are spaced apart at the upper end of the upper column embedded steel plate. The lower end of each anchor bolt penetrates the upper column embedded steel plate and is inserted into the cavity of the prestressed concrete pipe pile. A concrete sealing block is installed in the cavity of the prestressed concrete pipe pile. The upper end of the concrete sealing block is filled with micro-expansion concrete, and the lower end of the anchor bolt is located within the micro-expansion concrete. The end of the anchor bolt has an arc-shaped structure.

2. A prestressed concrete pipe pile foundation device for a sound barrier, characterized in that, It includes a sound-absorbing component, and a fixing component is provided at the lower end of the sound-absorbing component. Several fixing components are arranged at intervals, and several fixing components are connected by a connecting component. The fixing assembly includes an upper column embedded steel plate, an H-shaped steel column, ribs, a prestressed concrete pipe pile, and a concrete sealing block. The lower end of the H-shaped steel column is located in the cavity of the prestressed concrete pipe pile, and a concrete sealing block is installed in the cavity of the prestressed concrete pipe pile. The upper end of the concrete sealing block is filled with micro-expansion concrete. The lower end of the H-shaped steel column is provided with an upper column embedded steel plate, and ribs are provided at both ends of the upper column embedded steel plate. The ribs, the lower end of the H-shaped steel column, and the upper column embedded steel plate are all located within the micro-expansion concrete.

3. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 1 or 2, characterized in that, The ribs are spaced apart and a number of them are fixedly connected. One end of the rib is fixedly connected to the H-shaped steel column, and the other end of the rib is fixedly connected to the steel plate embedded in the upper column.

4. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 1 or 2, characterized in that, The upper end of the H-shaped steel column is also provided with a lower cover plate, one end of which is fixedly connected to the H-shaped steel column, and the lower end of the lower cover plate is flush with the road surface.

5. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 1 or 2, characterized in that, The prestressed concrete pipe pile is covered with cement mortar on its outer side, and the cement mortar covers the outer side of the prestressed concrete pipe pile.

6. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 1 or 2, characterized in that, The connecting components include hollow square piles, stirrups, prestressed steel bars, nuts, end plates, and pile sleeves; The hollow square pile is equipped with stirrups inside, and prestressed steel bars are installed at both ends of the stirrups. The ends of the prestressed steel bars are equipped with embedded nuts, and steel bars are installed inside the embedded nuts. One end of the steel bars is located in the cavity of the prestressed concrete pipe pile.

7. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 6, characterized in that, The hollow square pile is provided with an end plate at its end and a pile sleeve hoop is provided on the outside of the hollow square pile; the cavity of the prestressed concrete pipe pile is provided with post-lapped steel bars, which are spaced apart and arranged between the post-lapped steel bars.

8. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 1 or 2, characterized in that, The sound-absorbing assembly includes a top cover plate, a first louvered sound-absorbing panel, a second louvered sound-absorbing panel, a first aluminum alloy frame, laminated glass, and a second aluminum alloy frame. The lower end of the top cover is provided with a first aluminum alloy frame, and a first louvered sound-absorbing plate and a second louvered sound-absorbing plate are provided on the first aluminum alloy frame.

9. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 8, characterized in that, A second aluminum alloy frame is provided at the lower end of the first aluminum alloy frame, and laminated glass is provided on the second aluminum alloy frame.

10. A prestressed concrete pipe pile foundation device for a sound barrier as described in claim 8, characterized in that, The lower end of the second aluminum alloy frame is provided with an H-shaped steel column, and the H-shaped steel column is provided with a louvered sound-absorbing panel.

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