Road wing-wall-free transition guardrail crossing ground obstacles
By using prefabricated cross-ground obstacle highway wingless transition guardrails, which combine adaptive posts and corrugated steel plates, the problems of low construction efficiency and easy structural damage of existing guardrails in complex terrain and underground obstacle areas are solved, and efficient and safe guardrail connection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-03-03
Smart Images
Figure CN223963871U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of highway guardrail technology, specifically relating to a wing-wall-free transition guardrail for highways crossing ground obstacles. Background Technology
[0002] With the development of highway guardrails, various guardrail transition structures have been widely used. Currently, highway guardrail transition sections generally use concrete wing walls or rigid connection structures for protection. Although these have achieved basic protection functions, they have revealed significant defects in complex terrain and areas with dense underground obstacles.
[0003] Currently, guardrail transition sections on the market typically rely on traditional wing walls or concrete structures for connection and support. Therefore, when underground obstacles hinder the vertical construction of the posts, it is often necessary to adjust the route or implement foundation reinforcement, leading to extended construction periods and increased costs for highways. In addition, traditional rigid transition structures are difficult to adapt to uneven settlement, which can easily cause guardrail misalignment or even breakage, severely restricting the reliability and economy of the protection system.
[0004] Therefore, in view of the above problems, this utility model proposes a prefabricated wingless transition guardrail for highways crossing ground obstacles, so as to realize the mechanical connection of the guardrail in the transition section of highways crossing ground obstacles, increase the toughness of the connection structure in the transition area, and thus solve the problems existing in the prior art. Utility Model Content
[0005] In view of this, the main objective of this utility model is to provide a transition guardrail for cross-ground obstacle highways without wing walls, so as to solve the problems of poor adaptability and economy of existing concrete wing walls or rigid connection structures in the transition section of cross-ground obstacle highways.
[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0007] A wingless transition guardrail for highways crossing ground obstacles, the transition guardrail being a prefabricated structure installed above the obstacle section, comprising:
[0008] An adaptive cross-ground obstacle post includes an upper flange post, a lower flange post, and a transition steel plate connected by flanges. The upper flange post is located above the obstacle section and is connected to one end of the transition steel plate by a flange. The lower flange post is located below the obstacle section and is welded to the other end of the transition steel plate. The transition steel plate is laid on top of the obstacle in the obstacle section.
[0009] The transition section corrugated steel plate is installed on the side of the upper flange column near the road surface and is connected to the standard section corrugated steel plate.
[0010] In a preferred embodiment, a flange is provided at the bottom end of the upper flange column and the top end of the lower flange column, and the flange at the bottom end of the upper flange column is connected to the transition steel plate, while the flange at the top end of the lower flange column is welded to the transition steel plate.
[0011] In a preferred embodiment, the flange at the bottom end of the upper flange column is connected to the transition steel plate flange via flange bolts.
[0012] In a preferred embodiment, a hexagonal anti-blocking block is provided inside the upper flange column. The hexagonal anti-blocking block is movably inserted into the upper flange column and matches the buffer pad strip inside the flange column.
[0013] In a preferred embodiment, the upper flange column is further provided with a clearance opening on the side near the corrugated steel plate of the transition section, and the clearance opening is matched with the connecting bolt.
[0014] In a preferred embodiment, a second long bolt groove is also provided on the outer wall of the upper flange column on the side away from the corrugated steel plate of the transition section, and the second long bolt groove matches the connecting bolt.
[0015] In a preferred embodiment, the cross-ground obstacle highway wingless transition guardrail further includes a lower friction beam, which is disposed on the underside of the corrugated steel plate of the transition section and is connected to the upper flange post and the post of the adjacent standard section guardrail by connecting bolts.
[0016] In a preferred embodiment, the transition section corrugated steel plate is a corrugated steel plate structure that matches the standard section three-wave plate.
[0017] In a preferred embodiment, a stiffening steel bar is provided on the inner side of the trough of the corrugated steel plate of the transition section near the upper flange column. The stiffening steel bar is fixed inside the corrugated steel plate of the transition section by anti-deformation top bolts and matches the upper flange column.
[0018] In a preferred embodiment, the anti-deformation top bolts are symmetrically arranged on both sides of the trough of the corrugated steel plate in the transition section near the upper flange column.
[0019] Compared with the prior art, this utility model provides a wing-wall-free transition guardrail for highways crossing ground obstacles, which has the following beneficial effects:
[0020] 1. By using adaptive cross-ground obstacle posts, the upper and lower flange posts can be used in conjunction to achieve three-dimensional crossing of underground obstacles, completely eliminating the reliance on concrete wing walls. Its modular nature effectively shortens single-point construction and maintenance time, making it particularly suitable for highway reconstruction and expansion projects in urban areas with dense underground pipe networks and geologically unstable areas. Furthermore, the use of upper and lower flange posts overcomes the limitations of traditional integrated posts, allowing for flexible repositioning of posts after avoiding obstacles such as underground pipe trenches during construction. This enables continuous crossing of the support structure, adapting to spatial avoidance requirements in complex working conditions and effectively ensuring the adaptability of this guardrail structure during use.
[0021] 2. The combination of the upper flange post and hexagonal anti-collision block forms a composite energy-absorbing structure, enabling multiple damping attenuations of energy during a collision. This facilitates stress release when subjected to the impact force of a vehicle losing control, ensuring the safety of the guardrail structure. Simultaneously, it allows the upper flange post to elastically deflect under lateral loads, effectively mitigating structural damage caused by uneven foundation settlement.
[0022] 3. By incorporating corrugated steel plates in the transition section, a multi-level load-bearing structure is formed. During a vehicle collision, the corrugated cross-section absorbs kinetic energy through progressive deformation, allowing it to withstand more impact energy and effectively reducing the severity of the accident. This solves the problems of poor adaptability and economy inherent in existing concrete wing walls or rigid connection structures for transition sections of highways crossing ground obstacles. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0024] Figure 1 This is an assembly effect diagram of the wingless transition guardrail for highways crossing ground obstacles, as described in the transition section of the highway subgrade.
[0025] Figure 2 This is an assembly effect diagram of the highway wingless transition guardrail that crosses ground obstacles, as used in the transition section of the roadbed of a highway bridge.
[0026] Figure 3 This is a schematic diagram of the structure of the adaptive cross-ground obstacle column of this utility model;
[0027] Figure 4 This is an exploded view of the internal structure of the guide connecting plate of this utility model;
[0028] Figure 5 This is an exploded view of the adaptive cross-ground obstacle column of this utility model;
[0029] Figure 6 This is a schematic diagram of the corrugated steel plate for the transition section of this utility model;
[0030] Figure 7 This is a structural schematic diagram of the guide connecting plate and the U-shaped support component of this utility model;
[0031] Figure 8 This is a schematic diagram of the structure of the guide connecting plate of this utility model;
[0032] Figure 9 This is an installation effect diagram of the anti-deformation top bolt of this utility model.
[0033] [Explanation of Key Component Symbols]
[0034] 1. Guide connecting plate; 2. Corrugated steel plate of transition section; 3. Friction beam; 4. Upper flange column; 5. Lower flange column; 6. Lower concrete of bridge railing; 7. Transition plate; 8. Stiffening steel bar; 9. Anti-deformation top bolt; 10. U-shaped support; 11. First long bolt groove; 12. Clearance opening; 13. Hexagonal anti-blocking block; 14. Buffer pad; 15. Stiffening plate; 16. Flange connecting bolt; 17. Flange; 18. Standard section three-wave plate; 19. Transition steel plate; 20. Second long bolt groove. Detailed Implementation
[0035] The structure of the wing-wall-free transition guardrail for highways crossing ground obstacles will be further described in detail below with reference to the accompanying drawings and embodiments of this utility model.
[0036] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0037] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments as described in this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0038] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0039] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0040] Example 1:
[0041] Please see Figures 1-9 This utility model provides a technical solution:
[0042] A wingless transition guardrail for highways crossing ground obstacles is disclosed. The transition guardrail is a prefabricated structure deployed above obstacles such as underground pipe trenches and cable wells, seamlessly connecting to the roadbed guardrail at both ends via standardized interfaces. It includes adaptive ground obstacle-crossing posts and a transition section corrugated steel plate 2. The adaptive ground obstacle-crossing posts are positioned at the obstacle section location and include an upper flange post 4, a lower flange post 5, and a transition steel plate 19. The upper flange post 4 is positioned above the obstacle section and connected to one flange of the transition steel plate 19. The lower flange post 5 is positioned below the obstacle section and welded to the other end of the transition steel plate 19. The transition steel plate 19 is laid above the obstacle in the obstacle section and flush with the road surface, providing a rigid connection between the upper flange post 4 and the lower flange post 5, thus enabling the guardrail structure to cross ground obstacles. The transition section corrugated steel plate 2 is installed on the side of the upper flange post 4 near the road surface and connected to the standard section corrugated steel plate 19 for protective purposes.
[0043] In the above description, the installation of the adaptive cross-ground obstacle post and the corrugated steel plate 2 of the transition section facilitates the installation of the guardrail structure for the highway crossing underground obstacle section. It can connect the transition guardrail with the standard guardrail section in the highway crossing underground obstacle section, avoiding the use of wing walls or concrete structures, and effectively ensuring construction efficiency and the adaptability of the guardrail structure.
[0044] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, flanges 17 are provided at the bottom of the upper flange column 4 and the top of the lower flange column 5. The flanges 17 at the bottom of the upper flange column 4 and the flanges 17 at the top of the lower flange column 5 are connected to the transition steel plate 19 by flange bolts 16.
[0045] In the above description, both the upper flange post 4 and the lower flange post 5 are steel pipe pile structures. The flange 17 facilitates the detachable connection of the upper flange post 4 to the transition steel plate 19 during use, while the lower flange post 5 is welded to the transition steel plate 19. This allows the flange post 4 to cross highways and underground obstacles, ensuring the continuity of the support structure. Furthermore, the use of the upper flange post 4 and lower flange post 5 overcomes the limitations of traditional integrated posts, allowing for flexible repositioning of the posts after avoiding obstacles such as underground pipe trenches during construction. This achieves continuous crossing of the support structure, adapting to spatial avoidance requirements under complex working conditions and effectively ensuring the adaptability of this guardrail structure during use.
[0046] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 5As shown, stiffening plates 15 are provided at the bottom of the upper flange column 4 and the top of the lower flange column 5, and are connected to the flange 17. The stiffening plates 15 are used to enhance the bending stiffness at the connection between the upper flange column 4 and the lower flange column 5, ensuring that the deformation of the node is controlled within the design range under vehicle collision load, and ensuring the structural safety of the guardrail after installation.
[0047] Specifically, such as Figure 6 As shown, the lower flange post 5 is used to be driven directly into or buried in the ground inside obstacles such as underground pipe trenches during use. It is especially suitable for soft soil foundations or backfilled sections. This design eliminates the need for on-site welding and pouring during the installation of the lower flange post 5, effectively improving positioning efficiency.
[0048] Specifically, such as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a hexagonal anti-blocking block 13 is installed in the internal cavity of the upper flange column 4. The hexagonal anti-blocking block 13 is movably inserted into the internal cavity of the upper flange column 4 and works in conjunction with the buffer pad 14 in the internal cavity. A clearance opening 12 is provided on the side of the upper flange column 4 near the corrugated steel plate 2 of the transition section, which works in conjunction with the connecting bolt. A second long bolt groove 20 is also provided on the outer wall of the upper flange column 4 away from the corrugated steel plate 2 of the transition section, which works in conjunction with the connecting bolt.
[0049] In the above description, the hexagonal anti-collision block 13 with a honeycomb structure is connected to the rubber buffer strip 14 in the cavity through a movable plug-in method to form a composite energy-absorbing layer. The hexagonal anti-collision block 13 is made of high-strength aluminum alloy, which can effectively absorb impact energy through plastic deformation during collision; the buffer strip 14 provides secondary damping attenuation, effectively preventing the deformation of the hexagonal anti-collision block 13, and at the same time enhancing the strength of the upper flange column 4. By opening a clearance opening 12 in the side wall of the upper flange column 4 and connecting it with the connecting bolts of the transition section corrugated steel plate 2, the transition section corrugated steel plate 2, the upper flange column 4 and the hexagonal anti-collision block 13 are formed as a whole, which facilitates stress release when subjected to the impact force when the vehicle loses control, and allows the upper flange column 4 to undergo elastic deflection under lateral load, effectively mitigating structural damage caused by uneven foundation settlement.
[0050] In a preferred embodiment, such as Figure 1 and Figure 2 As shown, the cross-ground obstacle highway wingless transition guardrail also includes a lower friction beam 3. The lower friction beam 3 is located on the underside of the corrugated steel plate 2 of the transition section and is connected to the upper flange post 4 and the posts of the adjacent standard section guardrail by connecting bolts, which is used to enhance the integrity of the upper flange post 4 and the adjacent standard section guardrail.
[0051] In a preferred embodiment, such as Figure 1 , Figure 2 , Figure 6 and Figure 9 As shown, the transition section corrugated steel plate 2 is a corrugated steel plate structure that matches the standard section three-wave plate 18. Through its multi-continuous waveform cross-section design, it can form a multi-level stress-bearing structure. During a vehicle collision, the waveform cross-section absorbs kinetic energy through progressive deformation, and can withstand more impact energy, effectively reducing the severity of the accident. At the same time, the waveform superposition design of the transition section corrugated steel plate 2 can significantly improve the moment of inertia of the cross-section, which can resist torsional deformation caused by lateral loads. Combined with the continuous support of the flange column 4, the overall structure can still maintain linear smoothness in complex terrain, reducing structural displacement caused by foundation settlement.
[0052] In a preferred embodiment, such as Figure 1 , Figure 2 and Figure 7 As shown, a stiffening steel bar 8 is also provided on the inner side of the trough of the corrugated steel plate 2 near the upper flange column 4 in the transition section. The stiffening steel bar 8 is fixed in the corrugated steel plate 2 in the transition section by anti-deformation top bolts 9 and matches the upper flange column 4 to form a three-level force transmission path of "corrugated plate-stiffening rib-column", which disperses the local impact load to multiple adjacent corrugated units and reduces the out-of-plane deformation of the corrugated plate.
[0053] Specifically, such as Figure 1 , Figure 2 , Figure 7 and Figure 9 As shown, the anti-deformation top bolts 9 are symmetrically installed on both sides of the trough of the corrugated steel plate 2 near the upper flange column 4 in the transition section. They are used to fix the stiffening steel bars 8 and, through the clamping action of the two anti-deformation top bolts 9, to resist the deformation of the corrugated steel plate 2 in the transition section.
[0054] The working principle of the cross-ground obstacle highway wing-wall-free transition guardrail of this utility model includes:
[0055] Use case 1: such as Figure 1 and Figure 7 As shown, when the cross-ground obstacle highway wing-wall-free transition guardrail described in Example 1 is assembled on the transition section of the highway bridge subgrade, one end of the corrugated steel plate 2 of the transition section is connected to one end of the friction beam 3 via a U-shaped support 10 and a guide connecting plate 1, and the other end is connected to the standard section three-wave plate 18 to form an integral protective guardrail. Simultaneously, one end of the friction beam 3 is bolted to the lower concrete 6 of the bridge guardrail.
[0056] Use case 2: such as Figure 2As shown, when the cross-ground obstacle highway wingless transition guardrail described in Example 1 is installed on the roadbed transition section, both ends of the corrugated steel plate 2 of the transition section are connected to the standard section three-wave plate 18 to form a stable transition structure.
[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.
Claims
1. A ground obstacle highway free-wing wall transition guardrail, the transition guardrail is a fabricated structure, characterized in that: The barrier is arranged above the obstacle road section, comprising: The adaptive cross-ground obstacle column comprises a flange-joined upper flange column (4), a lower flange column (5) and a transition steel plate (19), the upper flange column (4) is arranged above the obstacle road section and is flange-joined with one end of the transition steel plate (19), the lower flange column (5) is arranged below the obstacle road section and is welded with the other end of the transition steel plate (19), and the transition steel plate (19) is arranged above the obstacle of the obstacle road section. The transition section corrugated steel plate (2) is arranged at the side of the upper flange column (4) close to the road surface and is connected with the standard section corrugated steel plate.
2. A cross-terrain barrier transition barrier as defined in claim 1, wherein: The bottom end of the upper flange column (4) and the top end of the lower flange column (5) are both provided with flanges (17), the flange (17) at the bottom end of the upper flange column (4) is connected with the transition steel plate (19), and the flange (17) at the top end of the lower flange column (5) is welded with the transition steel plate (19).
3. A cross-terrain barrier transition barrier as defined in claim 2, wherein: The flange (17) at the bottom end of the upper flange column (4) is flange-connected with the transition steel plate (19) through a flange connecting bolt (16).
4. A cross-terrain barrier transition barrier as defined in claim 1, wherein: The upper flange column (4) is provided with a hexagonal anti-blocking block (13) inside, the hexagonal anti-blocking block (13) is movably inserted into the upper flange column (4) and is matched with a buffer pad strip (14) inside the upper flange column (4).
5. A cross-terrain barrier transition wall for highway guardrails across ground obstacles as defined in claim 1, wherein: The side of the upper flange column (4) close to the transition section corrugated steel plate (2) is further provided with a giving opening (12), and the giving opening (12) is matched with a connecting bolt.
6. A cross-terrain barrier transition wall for highway guardrails across ground obstacles as defined in claim 1, wherein: The outer wall of the side of the upper flange column (4) away from the transition section corrugated steel plate (2) is further provided with a second long bolt groove (20), and the second long bolt groove (20) is matched with a connecting bolt.
7. A cross-terrain barrier transition barrier as defined in claim 1, wherein: The cross-ground obstacle road wing-free wall transition barrier further comprises a lower friction beam (3), the lower friction beam (3) is arranged at the lower side of the transition section corrugated steel plate (2) and is connected with the upper flange column (4) and the column of the adjacent standard section barrier through a connecting bolt.
8. A cross-terrain barrier transition barrier as defined in claim 1, wherein: The transition section corrugated steel plate (2) is a corrugated steel plate structure matched with a standard section three-wave plate (18).
9. A cross-terrain barrier transition barrier as defined in claim 8, wherein: The transition section corrugated steel plate (2) is provided with a stiffening steel strip (8) inside the valley close to the side of the upper flange column (4), the stiffening steel strip (8) is fixed in the transition section corrugated steel plate (2) through a deformation-resistant top bolt (9) and is matched with the upper flange column (4).
10. A cross-terrain barrier transition guardrail of claim 9, wherein: The deformation-resistant top bolt (9) is symmetrically arranged at both sides of the valley close to the side of the upper flange column (4) of the transition section corrugated steel plate (2).