Structure for preventing longitudinal and transverse beam falling of bridge

Abstract

The utility model discloses a structure for preventing longitudinal and transverse beam falling of a bridge, which belongs to the technical field of safety protection of bridge structures, is mounted between the bridge and piers, and comprises two first fixing plates and a second fixing plate, the second fixing plate is positioned between the two first fixing plates, one end of each first fixing plate is fixed at the bottom of the bridge, and the other end of each first fixing plate is fixed at the bottom of the bridge. One end of the second fixing plate is fixed on the bridge pier, and the other end of the second fixing plate penetrates through the space between the two first fixing plates; the first fixing plates and the second fixing plates are connected through fixing pieces, the two ends of the fixing pieces are fixed to the two first fixing plates respectively, the middles of the fixing pieces penetrate through the second fixing plates, movable holes are formed in the second fixing plates, and the fixing pieces move in the movable holes to achieve adjustment of the fixing positions. The technical effects of effectively limiting the longitudinal and transverse displacement of the bridge and enhancing the anti-seismic property and safety are achieved, and the stability and reliability of the bridge structure are guaranteed under complex working conditions.

Description

Technical Field

[0001] This utility model relates to the field of safety protection technology for bridge structures, and in particular to a structure for preventing the longitudinal and transverse beams of a bridge from falling off. Background Technology

[0002] As a vital component of modern transportation, the safety and durability of bridges have always been a key focus in the engineering field. Especially in earthquake-prone areas, preventing bridge beams from collapsing in both directions is crucial for ensuring traffic safety. Traditional anti-collapse technologies have accumulated rich experience through long-term practice and have played a significant role in improving bridge safety. However, with the acceleration of urbanization and the increasing aesthetic demands on infrastructure, traditional technologies have gradually revealed many limitations, necessitating more efficient, economical, and aesthetically pleasing new solutions to address these challenges.

[0003] Currently, to address the issue of longitudinal and transverse beam placement in bridges, the industry primarily employs two methods: one is to connect the main beam to the pier using flexible devices such as steel cables or chains; the other is to achieve rigid constraint through pre-embedded steel plates combined with anchorages. The former is widely used in practical engineering due to its simplicity and ease of implementation, while the latter is favored for its strong load-bearing capacity. In addition, there are other improved design approaches, such as adjusting material performance parameters or optimizing node construction details, but overall, these methods all revolve around the two main categories mentioned above in their exploration and practice.

[0004] Nevertheless, in practice, it has been found that both flexible and rigid measures have certain drawbacks. Especially for applications that require a balance between functionality and aesthetics, existing technologies often struggle to meet multiple demands simultaneously. While flexible connections can absorb some vibrational energy, they cannot effectively limit large-scale displacements, resulting in low protection efficiency. On the other hand, while rigid fixation can provide strong support, its large size disrupts the overall harmony of the building and consumes a large amount of metal resources, increasing construction costs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to propose a structure to prevent the longitudinal and transverse beams of a bridge from falling off, so as to solve the above-mentioned problem.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A structure for preventing bridge beams from falling in both longitudinal and transverse directions is installed between the bridge and the piers. It includes a first fixing plate and a second fixing plate, with the second fixing plate located between the two first fixing plates. One end of each first fixing plate is fixed to the bottom of the bridge, and the other end extends vertically downwards. One end of the second fixing plate is fixed to the pier, and the other end passes between the two first fixing plates. The first and second fixing plates are connected by a fastener, with both ends of the fastener fixed to the two first fixing plates respectively. The middle portion of the fastener passes through the second fixing plate. A movable hole is provided on the second fixing plate, allowing the fastener to move within the movable hole to adjust its fixed position.

[0008] The preferred technical solution of this utility model is that the fixing component includes a bolt and a nut, a fixing hole is provided on the first fixing plate, the diameter of the fixing hole is adapted to the bolt, and the nut is fixed to both ends of the bolt; after installation, the bolt passes through the fixing hole and the movable hole and is connected to the first fixing plate and the second fixing plate.

[0009] The preferred technical solution of this utility model is that the second fixing plate is fixed to the bridge pier by anchor bars.

[0010] The preferred embodiment of this utility model is that it further includes a third fixing plate, which is fixed to the outer side of the bridge pier by anchor bars, and the second fixing plate is fixed to the third fixing plate.

[0011] The preferred technical solution of this utility model is that a first fixed side plate is provided on the first fixed plate in the direction close to the bridge, and the first fixed side plate is vertically arranged on both sides of the first fixed plate.

[0012] A preferred embodiment of this invention is that a second fixing side plate is provided on the side of the second fixing plate close to the third fixing plate. The second fixing side plate is provided on both sides of the connection between the second fixing plate and the third fixing plate, and is perpendicular to the second fixing plate.

[0013] The preferred technical solution of this utility model is that the side of the first fixed side plate that is in contact with the first fixed plate is provided as a first contact part, and the side of the first fixed side plate away from the first fixed plate is provided with a first side wing and a first connecting part. The first side wing and the first connecting part are continuously arranged, the first connecting part is parallel to the first fixed plate, the included angle between the first connecting part and the first side wing is between 130° and 160°, and the length ratio between the first connecting part and the first side wing is 2:1.

[0014] The preferred technical solution of this utility model is that the side of the second fixed side plate that is in contact with the second fixed plate is provided as the second contact part, and the side of the second fixed side plate away from the second fixed plate is provided with a second side wing and a second connecting part. The second side wing and the second connecting part are continuously arranged, the second connecting part is parallel to the second fixed plate, the included angle between the second connecting part and the second side wing is between 130° and 160°, and the length ratio between the second connecting part and the second side wing is 1.1:1.

[0015] The preferred technical solution of this utility model is that the height of the second fixing plate does not exceed 2 / 5 of the position of the first fixing plate.

[0016] The preferred technical solution of this utility model is that the edge of the second fixing plate is chamfered.

[0017] The beneficial effects of this utility model are as follows:

[0018] (1) By setting a connection structure with movable holes between the first fixed plate and the second fixed plate, the longitudinal displacement of the bridge can be effectively restricted, while allowing a certain degree of lateral movement, thereby buffering the stress concentration caused by slight displacement and improving the overall reliability of the anti-fall beam.

[0019] (2) By utilizing the fit between bolts and steel plates, the structure of the device is simplified and the amount of steel used is reduced. While ensuring the anti-falling beam effect, the project cost is reduced, and it is also more in line with the requirements of green environmental protection.

[0020] (3) Its small size avoids the impact of large components on the appearance of the bridge in traditional schemes, enhances the overall aesthetics of the bridge, and better meets the dual needs of functionality and aesthetics in modern infrastructure construction. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the bridge beam anti-longitudinal and transverse beam drop structure provided in a specific embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the overall structure of the second fixing plate in the specific embodiment of the present utility model for preventing the longitudinal and transverse beams from falling off the bridge.

[0023] Figure 3 This is a schematic diagram of the overall structure of the bridge beam prevention structure in a specific embodiment of the present invention after removing the fixing parts.

[0024] Figure 4 This is a schematic diagram of the overall structure of Embodiment 3 of the bridge beam-prevention structure provided in a specific embodiment of this utility model;

[0025] Figure 5 yes Figure 4 Enlarged diagram of A in the middle;

[0026] Figure 6 This is a schematic diagram of the overall structure of Embodiment 4 of the bridge beam-prevention structure provided in a specific embodiment of this utility model.

[0027] Figure 7 yes Figure 6 Enlarged diagram of B in the middle;

[0028] In the picture:

[0029] 1. Bridge; 2. Pier; 3. First fixing plate; 301. Fixing hole; 4. Second fixing plate; 401. Movable hole; 5. Bolt; 6. Nut; 7. Anchor bar; 8. Third fixing plate; 9. First fixing side plate; 901. First fitting part; 902. First connecting part; 903. First side wing; 10. Second fixing side plate; 1001. Second fitting part; 1002. Second connecting part; 1003. Second side wing. Detailed Implementation

[0030] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0031] like Figure 1-3 As shown, this utility model provides a structure for preventing longitudinal and transverse beam collapse of a bridge 1, comprising a first fixing plate 3, a second fixing plate 4, and a fixing member. The second fixing plate 4 is located between the two first fixing plates 3. One end of each first fixing plate 3 is fixed to the bottom of the bridge 1, and the other end extends vertically downwards. One end of the second fixing plate 4 is fixed to the pier 2, and the other end passes between the two first fixing plates 3. The first fixing plates 3 and the second fixing plate 4 are connected by a fixing member. Both ends of the fixing member are fixed to the two first fixing plates 3, and the middle part of the fixing member passes through the second fixing plate 4. The second fixing plate 4 has a movable hole 401. The fixing member moves within the movable hole 401 to adjust its fixed position, effectively limiting the displacement of the bridge 1 and buffering stress. This also simplifies the construction process and facilitates later maintenance.

[0032] One end of the first fixing plate 3 is securely fixed to the bottom of the bridge 1 by welding or other fixing methods to ensure that it will not loosen. The other end extends vertically downward to form a stable support structure. To enhance the shear resistance and rigidity of the first fixing plate 3, reinforcing ribs can be added inside it.

[0033] The second fixing plate 4 is also made of high-strength steel, and its height should not exceed 2 / 5 of the height of the first fixing plate 3, thus more effectively balancing the stability and aesthetics of the structure. One end of the second fixing plate 4 is fixed to the pier 2 by anchor bars 7, with at least two anchor bars 7 used. This ensures that the connection between the second fixing plate 4 and the pier 2 is stable and reliable, and can withstand greater tensile and compressive forces.

[0034] The fasteners, specifically bolts 5 and nuts 6, are used to connect the first fixing plate 3 and the second fixing plate 4. The first fixing plate 3 has a fixing hole 301, the diameter of which is matched to the bolt 5, ensuring that the bolt 5 can pass through smoothly. The nuts 6 are fixed to both ends of the bolt 5, providing a tightening effect. After installation, the bolt 5 passes through the fixing hole 301 and the movable hole 401, connecting the first fixing plate 3 and the second fixing plate 4. The design of the movable hole 401 is crucial; its width should be slightly larger than the diameter of the bolt 5 to allow for lateral movement of the bolt 5 within a certain range. This not only effectively limits the longitudinal displacement of the bridge but also buffers stress concentration caused by slight displacement to a certain extent, thereby improving the stability and durability of the entire device. Simultaneously, this design simplifies the construction process, facilitates later maintenance and inspection, and reduces overall project costs.

[0035] Through reasonable structural design and material selection, the anti-falling beam structure of bridge 1 achieves excellent seismic resistance and restraint functions while maintaining a small volume. Specifically, the effective combination of the first fixing plate 3 and the second fixing plate 4, along with the unique design of the fasteners, constitutes a flexible yet robust anti-falling beam system. Under normal circumstances, the fasteners can move freely within the movable aperture 401, thereby absorbing and dispersing various minor vibrations from bridge 1. In extreme situations such as strong earthquakes, the fasteners will quickly lock, preventing bridge 1 from undergoing large-scale displacement, thus protecting the safety of bridge 1.

[0036] Example 2

[0037] The difference between this embodiment and the previous embodiment is the introduction of a third fixing plate 8. The third fixing plate 8 is fixed to the outer surface of the pier 2 by anchor bars 7, and the second fixing plate 4 is fixed to the third fixing plate 8. The purpose of this is to enhance the stability of the entire system and improve the appearance of the bridge 1.

[0038] One side of the third fixing plate 8 is fixed to the outer surface of the pier 2 by multiple anchor bars 7, using at least three anchor bars 7. This ensures a stronger connection between the third fixing plate 8 and the pier 2, allowing it to withstand greater external loads. The second fixing plate 4 is fixed to the third fixing plate 8, forming a multi-layered composite structure. In this structure, the second fixing plate 4 can be fixed to the third fixing plate 8 by welding or bolts 5, ensuring a tight connection between the two.

[0039] The presence of the third fixing plate 8 not only enhances the stability of the entire system but also further beautifies the appearance of bridge 1. Since the third fixing plate 8 is located on the outer side of the pier 2, its surface can undergo special decorative treatments, such as painting or carving, to make it more harmonious and unified with the surrounding environment. Furthermore, the third fixing plate 8 can also serve as a mounting base for additional facilities, such as lighting equipment and surveillance cameras, enhancing the functionality and aesthetics of bridge 1.

[0040] The third fixing plate 8 not only enhances the stability of the system, but also visually beautifies the bridge 1. The combination of the third fixing plate 8 and the second fixing plate 4 makes the entire system more robust in the face of various complex working conditions, and can maintain a good working state even under extreme conditions. The third fixing plate 8 is fixed to the outer side of the pier by the anchor bars 7, which increases the support points of the second fixing plate 4, making the entire structure more stable and reliable.

[0041] Example 3

[0042] like Figure 4-5 As shown, the difference between this embodiment and the previous embodiment is that a first fixed side plate 9 is provided in the direction of the first fixed plate 3 near the bridge 1. The first fixed side plate 9 is vertically arranged on both sides of the first fixed plate 3, which increases the stability and aesthetics of the structure.

[0043] The side of the first fixed side plate 9 that is in contact with the first fixed plate 3 is designated as the first contact portion 901. The side away from the first fixed plate 3 is provided with a first side wing 903 and a first connecting portion 902. The first side wing 903 and the first connecting portion 902 are continuously arranged, and the first connecting portion 902 is parallel to the first fixed plate 3. The included angle between the first connecting portion 902 and the first side wing 903 is between 130° and 160°, and their length ratio is 2:1. This design increases the contact area between the first fixed plate 3 and the surrounding environment, improving overall stability, and also adds a sense of visual depth, enhancing the aesthetic appeal of the bridge 1.

[0044] The first fixed side plate 9 not only helps enhance the stability of the structure but also provides additional protection. For example, in the event of strong winds or impacts from flying debris, the first fixed side plate 9 can effectively block these external factors from directly affecting the main body of the bridge 1. Furthermore, the material selection for the first fixed side plate 9 is also important; materials with good corrosion resistance and wear resistance, such as stainless steel or aluminum alloy, are recommended to extend service life and reduce maintenance frequency.

[0045] By installing the first fixed side plate 9 on the first fixed plate 3, not only is the overall stability of the structure enhanced, but it also adds more visual depth and aesthetic appeal. The special design of the first fixed side plate 9 makes the entire system more resistant to various harsh weather conditions. Meanwhile, the selection of its materials and processing technology ensures reliability and durability for long-term use. Furthermore, the first fixed side plate 9 can also serve as part of the bridge 1, combining with other decorative elements to create a unique visual effect, elevating the bridge 1 to a higher level in both functionality and aesthetics.

[0046] Example 4

[0047] like Figure 6-7 As shown, the difference between this embodiment and the previous embodiment is that a second fixing side plate 10 is provided on the side of the second fixing plate 4 near the third fixing plate 8. The second fixing side plate 10 is located on both sides of the connection between the second fixing plate 4 and the third fixing plate 8, and is perpendicular to the second fixing plate 4. This design aims to further enhance the stability and aesthetics of the structure.

[0048] The side of the second fixed side plate 10 that is in contact with the second fixed plate 4 is designated as the second contact portion 1001. The side away from the second fixed plate 4 is provided with a second side wing 1003 and a second connecting portion 1002. The second side wing 1003 and the second connecting portion 1002 are continuously arranged, and the second connecting portion 1002 is parallel to the second fixed plate 4. The included angle between the second connecting portion 1002 and the second side wing 1003 is between 130° and 160°, and their length ratio is 1.1:1. This not only increases the contact area between the second fixed plate 4 and the third fixed plate 8, improving overall stability, but also adds a sense of layering visually, enhancing the aesthetic appeal of the bridge 1.

[0049] The second fixed side plate 10 not only helps enhance the stability of the structure but also provides additional protection. For example, in the event of natural disasters such as floods or mudslides, the second fixed side plate 10 can effectively withstand the impact of water flow and debris on the main body of the bridge 1. The design of the second fixed side plate 10 being perpendicular to the second fixed plate 4 helps to disperse stress, reduce local stress concentration, and extend the service life of the device.

[0050] By setting a second fixed side plate 10 on the second fixed plate 4, not only is the overall stability of the structure enhanced, but also more visual layers and aesthetics are added.

[0051] Example 5

[0052] In addition to optimizing the height, the shape and structure of the second fixing plate 4 can be further improved. For example, chamfers can be added to the upper and lower edges of the second fixing plate 4 to reduce air and water resistance. Furthermore, textures or patterns can be added to the surface of the second fixing plate 4 to increase friction and enhance aesthetics. These subtle improvements can enhance overall practicality and appearance without compromising structural performance.

[0053] This utility model has been described through preferred embodiments. Those skilled in the art will understand that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. This utility model is not limited to the specific embodiments disclosed herein; other embodiments falling within the scope of the claims of this application are all within the protection scope of this utility model.

Claims

1. A structure for preventing longitudinal and transverse beam collapse of a bridge, installed between the bridge (1) and the pier (2), characterized in that: It includes a first fixing plate (3) and a second fixing plate (4). The second fixing plate (4) is located between the two first fixing plates (3). One end of the first fixing plate (3) is fixed to the bottom of the bridge (1), and the other end extends vertically downward. One end of the second fixing plate (4) is fixed to the pier (2), and the other end passes through the space between the two first fixing plates (3). The first fixing plate (3) and the second fixing plate (4) are connected by a fastener. The two ends of the fastener are respectively fixed on the two first fixing plates (3), and the middle part of the fastener passes through the second fixing plate (4). The second fixing plate (4) has a movable hole (401). The fastener moves within the movable hole (401) to adjust the fixed position.

2. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 1, characterized in that: The fastener includes a bolt (5) and a nut (6). The first fixing plate (3) has a fixing hole (301). The diameter of the fixing hole (301) is adapted to the bolt (5). The nut (6) is fixed to both ends of the bolt (5). After installation, the bolt (5) passes through the fixing hole (301) and the movable hole (401) and is connected to the first fixing plate (3) and the second fixing plate (4).

3. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 1, characterized in that: The second fixing plate (4) is fixed to the pier (2) by anchor bars (7).

4. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 1, characterized in that: It also includes a third fixing plate (8), which is fixed to the outer side of the pier (2) by anchor bars (7), and the second fixing plate (4) is fixed to the third fixing plate (8).

5. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 1, characterized in that: The first fixing plate (3) is provided with a first fixing side plate (9) in the direction close to the bridge (1), and the first fixing side plate (9) is vertically arranged on both sides of the first fixing plate (3).

6. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 4, characterized in that: The second fixing plate (4) is provided with a second fixing side plate (10) on the side close to the third fixing plate (8). The second fixing side plate (10) is provided on both sides of the connection between the second fixing plate (4) and the third fixing plate (8), and is perpendicular to the second fixing plate (4).

7. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 5, characterized in that: The side of the first fixed side plate (9) that is in contact with the first fixed plate (3) is provided as a first contact part (901). The side of the first fixed side plate (9) away from the first fixed plate (3) is provided with a first side wing (903) and a first connecting part (902). The first side wing (903) and the first connecting part (902) are continuously arranged. The first connecting part (902) is parallel to the first fixed plate (3). The included angle between the first connecting part (902) and the first side wing (903) is between 130° and 160°. The length ratio between the first connecting part (902) and the first side wing (903) is 2:

1.

8. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 6, characterized in that: The side of the second fixed side plate (10) that is in contact with the second fixed plate (4) is provided as the second contact part (1001). The side of the second fixed side plate (10) away from the second fixed plate (4) is provided with a second side wing (1003) and a second connecting part (1002). The second side wing (1003) and the second connecting part (1002) are continuously arranged. The second connecting part (1002) is parallel to the second fixed plate (4). The included angle between the second connecting part (1002) and the second side wing (1003) is between 130° and 160°. The length ratio between the second connecting part (1002) and the second side wing (1003) is 1.1:

1.

9. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 1, characterized in that: The height of the second fixing plate (4) does not exceed 2 / 5 of the position of the first fixing plate (3).

10. The structure for preventing bridge beams from falling in the longitudinal and transverse directions according to claim 1, characterized in that: The edge of the second fixing plate (4) is chamfered.

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