Ecc bridge pier anti-collision enclosure
By installing anti-collision enclosure structures on the ECC bridge piers, and using components such as protective plates, support rods, and damping springs to absorb impact energy, the problem of pier damage during collisions has been solved, enhancing the safety and applicability of the bridge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING PICAS CONSTR TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-12
AI Technical Summary
When ECC bridge piers are struck by ships or vehicles, they are easily damaged due to fiber breakage and structural instability, and existing technologies are insufficient to effectively protect the pier structure.
The structure employs a crash-resistant enclosure, including components such as protective panels, support rods, damping springs, and airbags. It absorbs impact energy through elastic deformation, disperses impact force, enhances the rigidity of the bridge piers, and provides a buffer layer for protection.
It effectively absorbs and dissipates impact energy, protects the pier structure from serious damage, improves the overall safety of the bridge, and is adaptable to piers of different sizes, making maintenance convenient.
Smart Images

Figure CN224351114U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of bridge pier protection technology, specifically an ECC bridge pier anti-collision enclosure. Background Technology
[0002] ECC piers refer to piers constructed or reinforced with engineering cement-based composite materials. ECC materials have characteristics such as high ductility, high strength, and good durability.
[0003] During the construction of bridge piers, the cross-sectional dimensions, height, and stress form of the piers are determined based on the load and seismic requirements of the bridge. The limit type of the ECC is determined by combining its high ductility characteristics. The materials are then prepared and pumped to pour the concrete into the piers. The piers support the bridge and bear the axial pressure of vehicle and structural self-weight during use. The ECC evenly transfers the load to the foundation.
[0004] In different environments and locations on urban roads or rivers, bridge piers are easily subjected to collisions with ships or vehicles on busy roads. Long-term impacts from high-speed vehicles or large ships, exceeding the deformation capacity of the ECC, can easily lead to fiber breakage, overall structural instability, and damage to the bridge piers.
[0005] Therefore, this utility model provides an ECC bridge pier anti-collision enclosure. Utility Model Content
[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: An ECC bridge pier anti-collision enclosure according to this utility model includes a pier body; two sets of installation components are installed in the middle of the pier body; multiple guardrails are fixedly connected to the middle of the two sets of installation components; two sliding grooves are opened in the middle of the guardrails; the two sliding grooves are arranged opposite to each other; a fixing rod is fixedly connected to the middle of the sliding groove; a slider is slidably connected to the middle of the sliding groove and the fixing rod; a damping spring is fixedly connected to the middle of the side wall of the slider; the end of the damping spring is fixedly connected to one end of the sliding groove; the ends of the two opposite sliders are hinged. The structure includes a support rod; the support rod is hinged in the middle; two connecting rods are fixedly connected to the middle of the support rod; protective plates are fixedly connected to the ends of the two connecting rods; the protective plates are arc-shaped. With this structure, when the pier is impacted, the combination of the protective plates and the support rod can effectively disperse the impact force. The damping spring absorbs part of the impact energy through its elastic deformation, reducing the impact force directly borne by the pier, providing an additional buffer layer for the pier, absorbing and dissipating impact energy, protecting the pier structure from serious damage, enhancing the overall rigidity of the pier, and improving the overall safety of the bridge.
[0008] Preferably, the installation assembly includes two first mounting rings; two fastening bolts are installed at the ends of the first mounting rings; an extension plate is installed in the middle of the fastening bolts; a second mounting ring is slidably connected to the middle of the two extension plates; multiple guardrails are fixedly connected to the middle of the two first mounting rings and the two second mounting rings; a slide rail is provided in the middle of the second mounting ring; the extension plate is slidably disposed in the middle of the slide rail; several fixing grooves are provided on the side wall of the extension plate; two fixing plates are fixedly connected to the ends of the second mounting rings; a sliding rod is slidably connected to the middle of the fixing plate; a spring is fixedly connected between the end of the sliding rod and the fixing plate; a fixing block is fixedly connected to the end of the sliding rod; the fixing block is disposed in the middle of the fixing groove; buffer assemblies are installed in the middle of both the first and second mounting rings; the above structure can be adjusted according to the actual size of the pier, so that the guardrails fit tightly with the pier, which can adapt to piers of different sizes, improve its applicability, and facilitate maintenance when repair or replacement is required.
[0009] Preferably, the buffer assembly includes multiple mounting blocks; each mounting block is fixedly connected to the middle of the first mounting ring and the second mounting ring; a mounting groove is formed in the middle of each mounting block; a connecting block is installed in the middle of the mounting groove; airbags are fixedly connected to the ends of multiple opposing connecting blocks; an air inlet valve is fixedly connected to the bottom of each airbag; through the above structure, the airbag can effectively absorb the huge impact energy generated when a ship or vehicle collides with it through its elastic deformation, and is tightly combined with the protective plate to form a stable overall protective structure, improving the overall stability of the pier when subjected to external forces, and the airbag can be easily replaced after being severely damaged by an impact.
[0010] Preferably, two adjacent protective plates are fixedly connected to flexible steel sheets on their sidewalls; the flexible steel sheets are elastically configured; through the above structure, the flexible steel sheets have good elasticity and toughness, and can deform and absorb part of the impact energy when impacted, and can quickly restore the overall structure through the elasticity of the flexible steel sheets.
[0011] Preferably, an anti-slip pad is fixedly connected to the middle of the extension plate and the first mounting ring; the anti-slip pad is disposed on the inner sidewall of the extension plate and the first mounting ring; the anti-slip pad can increase the friction between the extension plate and the sliding groove and the pier through the above structure, effectively reducing the sliding or displacement of the guardrail when it is subjected to external impact.
[0012] Preferably, a foam board is fixedly connected to the middle of the protective plate; the foam board is fixedly connected to the outer wall of the protective plate; the above structure can effectively reduce stress concentration of the protective plate when it is subjected to local force, and reduce local damage to the protective plate caused by stress concentration.
[0013] The beneficial effects of this utility model are as follows:
[0014] 1. The ECC bridge pier anti-collision enclosure described in this utility model, through the above structure, when the pier is impacted, the combination of the protective plate and the support rod can effectively disperse the impact force, and the damping spring absorbs part of the impact energy through its elastic deformation, reducing the impact force directly borne by the pier, providing an additional buffer layer for the pier, absorbing and dissipating the impact energy, protecting the pier structure from serious damage, enhancing the overall rigidity of the pier, and improving the overall safety of the bridge.
[0015] 2. The ECC pier anti-collision enclosure described in this utility model can be adjusted according to the actual size of the pier through the above structure, so that the enclosure rod fits tightly with the pier. It can adapt to piers of different sizes, improve its applicability, and facilitate maintenance when repair or replacement is required. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a perspective view of the present invention;
[0018] Figure 2 This is an exploded view of the protective rod in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the protective plate in this utility model;
[0020] Figure 4 This is an exploded view of the mounting components in this utility model;
[0021] Figure 5 This is a schematic diagram of the buffer component in this utility model.
[0022] In the diagram: 1. Pier; 11. Guardrail; 12. Slide groove; 13. Fixing rod; 14. Damping spring; 15. Sliding block; 16. Support rod; 17. Connecting rod; 18. Protective plate; 2. Installation assembly; 21. First mounting ring; 22. Second mounting ring; 23. Slide rail; 24. Extension plate; 25. Fixing groove; 26. Fixing plate; 27. Slide rod; 28. Spring; 29. Fixing block; 20. Fastening bolt; 3. Buffer assembly; 31. Installation block; 32. Installation groove; 33. Connecting block; 34. Airbag; 35. Air inlet valve; 4. Flexible steel sheet; 5. Anti-slip mat; 6. Foam board; 7. Warning board. Detailed Implementation
[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0024] like Figures 1 to 3As shown, an embodiment of the present invention provides an ECC bridge pier anti-collision enclosure, comprising a pier body 1; two sets of installation components 2 are installed in the middle of the pier body 1; multiple guardrails 11 are fixedly connected to the middle of the two sets of installation components 2; two sliding grooves 12 are opened in the middle of the guardrails 11; the two sliding grooves 12 are arranged opposite to each other; a fixing rod 13 is fixedly connected to the middle of the sliding groove 12; a slider 15 is slidably connected to the middle of the sliding groove 12 and the fixing rod 13; a damping spring 14 is fixedly connected to the middle of the side wall of the slider 15; the end of the damping spring 14 is fixedly connected to one end of the sliding groove 12; a support rod 16 is hinged to the ends of the two opposite sliders 15; the middle of the support rod 16 is hinged; two connecting rods 17 are fixedly connected to the middle of the support rod 16; a protective plate 18 is fixedly connected to the ends of the two connecting rods 17; the protective plate 18 is arc-shaped; during operation, multiple guardrails 11 are installed in the middle of the pier body 1 through the installation components 2; when an external object collides with the pier body 1, When an object first comes into contact with the corresponding protective plate 18, it impacts the protective plate 18 with a violent impact. When the protective plate 18 is under pressure, the two connecting rods 17 bend flexibly, and the protective plate 18 applies pressure to the support rod 16. The middle part of the support rod 16 rotates and moves to the position of the guard rod 11. At this time, the end of the support rod 16 drives the slider 15 to slide in the middle of the groove 12 and the fixed rod 13. The impact force during the collision is absorbed by the two damping springs 14, thereby protecting the pier 1. With the above structure, when the pier 1 is hit, the combination of the protective plate 18 and the support rod 16 can effectively disperse the impact force. The damping springs 14 absorb part of the impact energy through their elastic deformation, reduce the impact force directly borne by the pier 1, provide an additional buffer layer for the pier 1, absorb and dissipate the impact energy, protect the structure of the pier 1 from serious damage, enhance the overall rigidity of the pier 1, and improve the overall safety of the bridge.
[0025] like Figure 2 and Figure 4As shown, the mounting assembly 2 includes two first mounting rings 21; two fastening bolts 20 are installed at the ends of the first mounting rings 21; an extension plate 24 is installed in the middle of the fastening bolts 20; a second mounting ring 22 is slidably connected to the middle of the two extension plates 24; multiple guardrails 11 are fixedly connected to the middle of the two first mounting rings 21 and the two second mounting rings 22; a slide rail 23 is opened in the middle of the second mounting ring 22; the extension plate 24 is slidably disposed in the middle of the slide rail 23; several fixing grooves 25 are opened on the side wall of the extension plate 24; two fixing plates 26 are fixedly connected to the ends of the second mounting rings 22; a slide rod 27 is slidably connected to the middle of the fixing plate 26; a spring 28 is fixedly connected between the end of the slide rod 27 and the fixing plate 26; a fixing block 29 is fixedly connected to the end of the slide rod 27; the fixing block 29 is disposed in the middle of the fixing groove 25; a buffer assembly 3 is installed in the middle of both the first mounting rings 21 and the second mounting rings 22; During operation, when installing multiple guardrails 11 in the middle of the pier 1, firstly, place two first mounting rings 21 in the designated positions, align the end of the second mounting ring 22 with the end of the first mounting ring 21, slide the sliding rod 27 upward in the middle of the fixing plate 26, slide the extension plate 24 towards the end of the first mounting ring 21 according to the size of the pier 1, and after the extension plate 24 is moved, the sliding rod 27 is reset by the spring 28, the fixing block 29 enters the middle of the corresponding fixing groove 25, and the extension plate 24 is fixed. The first mounting ring 21 and the second mounting ring 22 are connected by the fastening bolt 20, so that they are quickly fixed in the middle of the pier 1. The above structure can be adjusted according to the actual size of the pier 1, so that the guardrails 11 fit tightly with the pier, which can adapt to piers of different sizes, improve its applicability, and facilitate maintenance when repair or replacement is required.
[0026] like Figure 1 and Figure 5 As shown, the buffer assembly 3 includes multiple mounting blocks 31; each mounting block 31 is fixedly connected to the middle of the first mounting ring 21 and the second mounting ring 22; a mounting groove 32 is opened in the middle of the mounting block 31; a connecting block 33 is installed in the middle of the mounting groove 32; an airbag 34 is fixedly connected to the ends of multiple opposing connecting blocks 33; an air inlet valve 35 is fixedly connected to the bottom of the airbag 34; during operation, the airbag 34 is installed on the outside of multiple protective plates 18, the connecting blocks 33 at both ends of the airbag 34 are inserted into the middle of the corresponding mounting blocks 31, the airbag 34 is installed in the middle of the first mounting ring 21 and the second mounting ring 22, and gas is injected into the airbag 34 through the air inlet valve 35, causing the airbag 34 to expand and form a buffer layer. Through the above structure, the airbag 34 can effectively absorb the huge impact energy generated when a ship or vehicle is hit by an impact through its elastic deformation, and is tightly combined with the protective plate 18 to form a stable overall protective structure, improving the overall stability of the pier 1 when subjected to external forces, and the airbag 34 can be easily replaced after being severely damaged by an impact.
[0027] like Figure 2As shown, flexible steel sheets 4 are fixed to the side walls of two adjacent protective plates 18; the flexible steel sheets 4 are elastically configured; during operation, when subjected to a collision, the flexible steel sheets 4 bend elastically with the external object or the protective plate 18, and when no pressure is applied, the flexible steel sheets 4 quickly reset the multiple protective plates 18. Through the above structure, the flexible steel sheets 4 have good elasticity and toughness, and can deform and absorb part of the impact energy when subjected to an impact, and quickly restore the overall structure through the elasticity of the flexible steel sheets 4.
[0028] like Figure 4 As shown, an anti-slip pad 5 is fixedly connected to the middle of the extension plate 24 and the first mounting ring 21. The anti-slip pad 5 is set on the inner sidewall of the extension plate 24 and the first mounting ring 21. During operation, when the first mounting ring 21 and the second mounting ring 22 are installed in the middle of the pier 1 for protection, the anti-slip pad 5 makes the inner sidewall of the extension plate 24 and the first mounting ring 21 fit against the middle of the pier 1, increasing the friction between the extension plate 24 and the first mounting ring 21 and the pier 1. Through the above-mentioned structure, the anti-slip pad 5 can increase the friction between the extension plate 24 and the sliding groove 12 and the pier, effectively reducing the sliding or displacement of the guardrail 11 when it is hit by external force.
[0029] like Figure 3 As shown, a foam board 6 is fixedly attached to the middle of the protective plate 18; the foam board 6 is fixedly attached to the outer wall of the protective plate 18; during operation, when subjected to external impact, the foam board 6 enables the external object to collide flexibly with the protective plate 18. The above structure can effectively reduce stress concentration of the protective plate 18 when subjected to local force, and reduce local damage to the protective plate 18 caused by stress concentration.
[0030] like Figure 1 and Figure 5 As shown, a warning plate 7 is installed in the middle of the airbag 34; the warning plate 7 is fixed to the outer wall of the airbag 34; during operation, the warning plate 7 reflects light and warns the surrounding environment when the light is dim. The above structure enables the driver or crew to discover the position of the pier 1 earlier at night or in low visibility conditions, reducing the risk of collision due to obstructed vision.
[0031] During operation, multiple guardrails 11 are installed in the middle of the pier 1 using the mounting assembly 2. When an external object collides with the pier 1, the object first contacts the corresponding protective plate 18. Upon violent impact, the object presses against the protective plate 18. Under pressure, the two connecting rods 17 flexibly bend, causing the protective plate 18 to apply pressure to the support rod 16. The middle of the support rod 16 rotates and moves towards the position of the guardrail 11. At this time, the end of the support rod 16 drives the slider 15 to slide between the groove 12 and the fixed rod 13, which is absorbed by the two damping springs 14. To protect the pier 1 from the impact force during a collision, multiple guardrails 11 are installed in the middle of the pier 1. First, two first mounting rings 21 are placed in designated positions, and the ends of the second mounting rings 22 are aligned with the ends of the first mounting rings 21. The sliding rod 27 is slid upward in the middle of the fixing plate 26. According to the size of the pier 1, the extension plate 24 is slid towards the end of the first mounting rings 21. After the extension plate 24 is moved, the sliding rod 27 is reset by the spring 28, the fixing block 29 enters the middle of the corresponding fixing groove 25, and the extension plate 24 is fixed. Fastening bolts 20 connect the first mounting ring 21 and the second mounting ring 22, quickly fixing them to the middle of the pier 1. Airbags 34 are installed on the outside of multiple protective plates 18. Connecting blocks 33 at both ends of the airbag 34 are inserted into the middle of the corresponding mounting blocks 31. The airbag 34 is then installed between the first mounting ring 21 and the second mounting ring 22. Gas is injected into the airbag 34 through the air inlet valve 35, causing the airbag 34 to inflate and form a buffer layer. When impacted, the flexible steel sheet 4 elastically bends with the external object or the protective plate 18. When under pressure, the flexible steel sheet 4 quickly resets the multiple protective plates 18. When the first mounting ring 21 and the second mounting ring 22 are installed in the middle of the pier 1 for protection, the anti-slip pad 5 makes the extension plate 24 and the inner wall of the first mounting ring 21 fit against the middle of the pier 1, increasing the friction between the extension plate 24, the first mounting ring 21 and the pier 1. When subjected to external impact, the foam board 6 makes the external object collide with the protective plate 18 in a flexible manner. In dim light, the warning plate 7 reflects light and warns the surrounding environment.
[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An ECC bridge pier anti-collision enclosure, comprising a pier body (1); characterized in that: Two sets of installation components (2) are installed in the middle of the pier (1); multiple guardrails (11) are fixedly connected in the middle of the two sets of installation components (2); two sliding grooves (12) are opened in the middle of the guardrails (11); the two sliding grooves (12) are arranged opposite to each other; a fixing rod (13) is fixedly connected in the middle of the sliding groove (12); a slider (15) is slidably connected in the middle of the sliding groove (12) and the fixing rod (13); a damping spring (14) is fixedly connected in the middle of the side wall of the slider (15); the end of the damping spring (14) is fixedly connected to one end of the sliding groove (12); a support rod (16) is hinged to the ends of the two opposite sliders (15); the support rod (16) is hinged in the middle; two connecting rods (17) are fixedly connected in the middle of the support rod (16); a protective plate (18) is fixedly connected to the ends of the two connecting rods (17); the protective plate (18) is arc-shaped.
2. The ECC pier anti-collision enclosure according to claim 1, characterized in that: The mounting assembly (2) includes two first mounting rings (21); two fastening bolts (20) are mounted at the ends of the first mounting rings (21); an extension plate (24) is mounted in the middle of the fastening bolts (20); a second mounting ring (22) is slidably connected in the middle of the two extension plates (24); a plurality of guardrails (11) are fixedly connected in the middle of the two first mounting rings (21) and the two second mounting rings (22); a slide rail (23) is provided in the middle of the second mounting ring (22); the extension plate (24) is slidably disposed in the slide rail (23). In the middle section; the side wall of the extension plate (24) is provided with several fixing grooves (25); the end of the second mounting ring (22) is fixedly connected to two fixing plates (26); a sliding rod (27) is slidably connected in the middle of the fixing plate (26); a spring (28) is fixedly connected between the end of the sliding rod (27) and the fixing plate (26); a fixing block (29) is fixedly connected to the end of the sliding rod (27); the fixing block (29) is set in the middle of the fixing groove (25); a buffer assembly (3) is installed in the middle of both the first mounting ring (21) and the second mounting ring (22).
3. The ECC pier anti-collision enclosure according to claim 2, characterized in that: The buffer assembly (3) includes multiple mounting blocks (31); each mounting block (31) is fixedly connected to the middle of the first mounting ring (21) and the second mounting ring (22); a mounting groove (32) is provided in the middle of the mounting block (31); a connecting block (33) is installed in the middle of the mounting groove (32); an airbag (34) is fixedly connected to the ends of multiple opposing connecting blocks (33); an air inlet valve (35) is fixedly connected to the bottom of the airbag (34).
4. The ECC pier anti-collision enclosure according to claim 1, characterized in that: Flexible steel sheets (4) are fixed to the side walls of two adjacent protective plates (18); the flexible steel sheets (4) are elastically arranged.
5. The ECC pier anti-collision enclosure according to claim 2, characterized in that: An anti-slip pad (5) is fixedly connected to the middle of the extension plate (24) and the first mounting ring (21); the anti-slip pad (5) is disposed on the inner sidewall of the extension plate (24) and the first mounting ring (21).
6. The ECC pier anti-collision enclosure according to claim 1, characterized in that: A foam board (6) is fixedly attached to the middle of the protective plate (18); the foam board (6) is fixedly attached to the outer wall of the protective plate (18).
7. The ECC pier anti-collision enclosure according to claim 3, characterized in that: A warning plate (7) is installed in the middle of the airbag (34); the warning plate (7) is fixed to the outer wall of the airbag (34).