Bridge anti-overturning device

Abstract

The application discloses a bridge anti-overturning device, and relates to the technical field of bridge anti-overturning devices, which comprises a main beam and a single-column pier, the single-column pier is supported below the main beam, and the anti-overturning device comprises two groups of balancing components and two groups of connecting components. The two groups of balancing components are oppositely arranged along the width direction of the main beam and are sleeved on the top of the single-column pier. The two groups of connecting components are arranged on the two sides of the single-column pier along the width direction of the main beam, one end of each connecting component is connected with the main beam, and the other end is connected with one of the balancing components. The balancing component comprises a first supporting piece, a balancing piece and a second supporting piece, the balancing piece is horizontally arranged on the top of the single-column pier, one end of the second supporting piece is fixedly connected with the balancing piece, and the other end is connected with the connecting component. The first supporting piece is arranged above the balancing piece, and the first supporting piece is supported between the main beam and the balancing piece. The anti-overturning device is sleeved on the top of the single-column pier through the balancing component, the anti-overturning device is not required to be drilled on the single-column pier, the structure of the single-column pier is not damaged, and the installation process of the anti-overturning device is simple and rapid.

Description

Technical Field

[0001] This invention relates to the field of bridge reinforcement, and more particularly to a bridge anti-overturning device. Background Technology

[0002] During the construction of highway bridges, due to factors such as terrain, land area and landscape, the substructure of bridges is often supported by single columns in order to reduce land occupation, improve the layout of the substructure, reduce conflicts between the bridge foundation and underground buildings, increase visibility and the aesthetics of the bridge.

[0003] With the widespread use of single-column pier bridges, a prominent problem has emerged: although the structural performance of the superstructure and substructure of single-column pier bridges meets the requirements of bridge design codes, the lateral support system of the piers is single-point supported. Under eccentric loading, the lateral overturning resistance of the structure is very unstable, resulting in insufficient safety reserve for the overall overturning stability of the bridge. This poses a safety hazard of overall bridge rollover when overloaded vehicles pass under eccentric loads. If the bridge overturns, it will cause huge economic losses and adverse social impacts. Therefore, certain structures or devices are needed to reinforce single-column pier bridges against overturning.

[0004] The current dominant approach to strengthening single-column pier bridges involves adding support points outside the bridge deck's transverse system. These support components transfer eccentric loads to the piers, where they primarily bear the vertical and horizontal thrust forces from the support components. The bridge experiences equal interaction forces, altering the bridge's transverse stress distribution and preventing unbalanced moments. For example, steel cap beams and diagonal braces are added to the top of the single-column pier. While this method effectively improves the bridge's overturning resistance, its core principle requires integrating the strengthening device with the pier using high-strength bolts or anchors to ensure the vertical forces from the support components are transferred to the pier. However, the use of high-strength bolts or anchors necessitates drilling into the pier, inevitably causing structural damage and weakening the bridge's load-bearing capacity. Furthermore, the installation of the strengthening device requires numerous anchors, complicating the installation process and making future replacement difficult. Summary of the Invention

[0005] This invention provides a bridge anti-overturning device to solve the problem that existing single-column pier bridge reinforcement schemes require drilling holes in the pier body, and damage to the pier body weakens the bridge's load-bearing capacity.

[0006] This application provides a bridge anti-overturning device. The bridge includes a main beam and a single-column pier, with the single-column pier supported below the main beam. The anti-overturning device includes two sets of balancing components and two sets of connecting components. The two sets of balancing components are arranged opposite each other along the width direction of the main beam and are fitted onto the top of the single-column pier. The two sets of connecting components are respectively arranged on both sides of the single-column pier along the width direction of the main beam, with one end of each connecting component connected to the main beam and the other end connected to one of the balancing components. The balancing component includes a first support member, a balancing member, and a second support member. The balancing member is horizontally placed on the top of the single-column pier. One end of the second support member is fixedly connected to the balancing member, and the other end is connected to the connecting component. The first support member is located above the balancing member and is supported between the main beam and the balancing member.

[0007] According to the above-mentioned technical means, the anti-overturning device of the present invention is fitted on the top of the single-column pier by a balancing component, which avoids damage to the pier structure caused by drilling holes in the single-column pier, making the installation process of the anti-overturning device simpler and faster.

[0008] This invention achieves self-balancing of a single-column pier bridge by transferring the eccentric load on the main girder to a balancing component on the single-column pier via a connecting assembly. Specifically, the balancing component forms a lever structure, with a first support member located on the resistance arm and a second support member on the power arm. When the main girder experiences overload eccentricity, the connecting assembly transfers the unfavorable load to the second support member. At this time, the second support member bears both horizontal pressure and vertical tension. The horizontal pressure is balanced by the reaction force of the single-column pier. The vertical tension is transferred through the second support member to the balancing component, which has a downward vertical tension near the second support member. This tension is then transferred to the end of the balancing component near the first support member, giving the first support member an upward vertical force. The first support member is supported between the main girder and the balancing component, allowing this upward vertical force to be balanced by the weight of the main girder, thereby significantly improving the overturning resistance of the single-column pier bridge.

[0009] Furthermore, each of the balancing components also includes a clamp, which is fixedly connected to the second support member; the clamps of the two sets of balancing components are spliced ​​together and fitted onto the side wall at the upper end of the single column pier.

[0010] According to the aforementioned technical means, the balancing components are stably fitted onto the upper end of the single-column pier through balancing parts and clamps. At the same time, the clamps of the two sets of balancing components are spliced ​​together to reinforce the top of the single-column pier, significantly improving the local bearing capacity of the top of the single-column pier and effectively preventing the part of the single-column pier that serves as a fulcrum from being crushed.

[0011] Furthermore, the anti-overturning device also includes fiber-reinforced fabric, which covers the monopole and is located between the monopole and the clamp.

[0012] Based on the aforementioned technical means, this invention increases the local bearing capacity of the concrete at the top of the single-column pier by attaching fiber-reinforced fabric to it, effectively preventing the portion of the single-column pier that serves as a fulcrum from being crushed. The clamps installed on the fiber-reinforced fabric exert circumferential pressure on both the fabric and the concrete, enhancing the reinforcement effect of the fiber-reinforced fabric.

[0013] Furthermore, each of the connecting components includes a first hinge, a second hinge, and a connecting rod; one end of the connecting rod is hinged to the main beam via the first hinge, and the other end is connected to the second support via the second hinge.

[0014] According to the above-mentioned technical means, the main beam and the single-column pier of the present invention are connected by a hinge, which is beneficial to the transmission of force.

[0015] Furthermore, the first hinge component includes a first hinge support, a first pin, and a first hinge base. The first hinge support is fixed to one end of the connecting rod, and the first hinge base is mounted on the main beam. The first hinge support is connected to the first hinge base by the first pin.

[0016] Based on the above technical means, the first hinge support and the first hinge base can effectively support the load of the main beam, while ensuring the stable transmission of force.

[0017] Furthermore, each of the connecting components also includes an expansion bolt, through which the first hinge base is mounted on the main beam.

[0018] Based on the above technical means, the first hinge base is tightly fitted to the bottom of the main beam using expansion bolts, thereby improving the stability of the connection component installation.

[0019] Furthermore, the second hinge member includes a second hinge support, a second pin, and a second hinge base; the second hinge support is fixed to the other end of the connecting rod, the second hinge base is fixed to the second support member, and the second hinge support is connected to the second hinge base by the second pin.

[0020] Based on the above technical means, the second hinge support and the second hinge base can effectively support the load of the connecting rod while ensuring the stable transmission of force.

[0021] Furthermore, the balancing component is a box-shaped steel pipe, and stiffening ribs are provided inside the balancing component.

[0022] Based on the above technical means, stiffening ribs can improve the local load-bearing capacity of box-type steel pipes and prevent deformation of the box-type steel pipes.

[0023] Furthermore, the balancing component has an arc-shaped structure; the middle section of the balancing component is connected to one end of the second support component; the number of the first support components is not less than two, and each of the first support components is evenly distributed at both ends of the balancing component.

[0024] Based on the aforementioned technical means, the balancing component of this invention is designed with an arc-shaped structure to adapt to the sidewall of the single-column pier, ensuring stable installation of the balancing assembly. Simultaneously, a second support component and a first support component are connected to the middle section and both ends of the arc-shaped balancing component, respectively, to form an effective lever structure. This allows the self-weight of the main beam to balance the overloaded eccentric load, thereby improving the overturning resistance of the single-column pier bridge.

[0025] Furthermore, a first reinforcing member and a second reinforcing member are respectively formed at both ends of the second support member. The first reinforcing member corresponds to the balance member, and the second reinforcing member corresponds to the second hinge base.

[0026] According to the aforementioned technical means, the second support member has first and second reinforcing members at both ends, thus creating a gap between the second support member and the side wall of the single-column pier to facilitate the installation of fiber-reinforced fabric and clamps. Simultaneously, the first and second reinforcing members can improve the strength at both ends of the second support member, enhancing its local compressive strength.

[0027] The beneficial effects achieved by this invention are as follows:

[0028] 1. The anti-overturning device of the present invention is fitted onto the top of the single-column pier by a balancing component, which avoids damage to the pier structure caused by drilling holes in the single-column pier, making the installation process of the anti-overturning device simpler and faster.

[0029] 2. This invention transfers the eccentric load on the main beam to the balancing component on the single-column pier through a connecting assembly, achieving self-balancing of the single-column pier bridge. Specifically, the balancing component forms a lever structure, with a first support member located on the resistance arm and a second support member on the power arm. When the main beam experiences overload eccentric loading, the connecting assembly transfers the unfavorable load to the second support member. At this time, the second support member bears horizontal pressure and vertical tension. The horizontal pressure is balanced by the support reaction force of the single-column pier. The vertical tension is transferred through the second support member to the balancing component, which has a downward vertical tension at the end near the second support member. This tension is transferred to the end of the balancing component near the first support member, giving the first support member an upward vertical force. The first support member is supported between the main beam and the balancing component, allowing the upward vertical force to be balanced by the weight of the main beam, thereby achieving self-balancing of the single-column pier bridge and improving its anti-overturning capacity. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall installation structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the installation structure of the balancing component of the present invention;

[0032] Figure 3 This is a schematic cross-sectional view of the balancing component of the present invention;

[0033] Figure 4 This is a schematic diagram of the balancing component structure of the present invention;

[0034] Figure 5 This is a side view of the overall structure of the present invention.

[0035] Figure label:

[0036] 1-Main beam;

[0037] 2-Single-column pier;

[0038] 3-Balance component, 31-First support member, 32-Balance member, 321-Strengthening rib, 33-Second support member, 331-First reinforcing member, 332-Second reinforcing member, 34-Clamp;

[0039] 4-Connecting assembly, 41-First hinge, 411-First hinge support, 412-First pin, 413-First hinge base, 42-Second hinge, 421-Second hinge support, 422-Second pin, 423-Second hinge base, 43-Connecting rod, 44-Expansion bolt.

[0040] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Specific Implementation

[0041] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.

[0043] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.

[0044] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.

[0045] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0046] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings.

[0047] like Figure 1 As shown, a bridge anti-overturning device is disclosed. The bridge includes a main beam 1 and a single-column pier 2, with the single-column pier 2 supported below the main beam 1. The anti-overturning device includes two sets of balancing components 3 and two sets of connecting components 4. The two sets of balancing components 3 are arranged opposite each other along the width direction of the main beam 1 and are fitted onto the top of the single-column pier 2. The two sets of connecting components 4 are respectively arranged on both sides of the single-column pier 2 along the width direction of the main beam 1, with one end of each connecting component 4 connected to the main beam 1 and the other end connected to one of the balancing components 3. The balancing component 3 includes a first support member 31, a balancing member 32, and a second support member 33. The balancing member 32 is placed horizontally on the top of the single-column pier 2. One end of the second support member 33 is fixedly connected to the balancing member 32, and the other end is connected to the connecting component 4. The first support member 31 is located above the balancing member 32 and is supported between the main beam 1 and the balancing member 32.

[0048] During the installation of the anti-overturning device, the two sets of balancing components 3 are hoisted to the top of the single-column pier 2 via pulley systems. The balancing elements 32 of each set of balancing components 3 are placed horizontally at the top edge of the single-column pier 2, and the lower end of the second support 33 is pressed tightly against the single-column pier 2. Then, the connecting component 4 is hoisted, and its two ends are connected to the lower end of the second support 33 and the bottom end of the main beam 1, respectively. At this point, the device installation is complete.

[0049] In this embodiment, the anti-overturning device is fitted onto the top of the single-column pier 2 by the balancing component 3, which avoids damage to the pier structure caused by drilling holes in the single-column pier 2, making the installation process of the anti-overturning device simpler and faster.

[0050] In this embodiment, the eccentric load on the main beam 1 is transferred to the balancing component 3 on the single-column pier 2 via the connecting component 4, achieving self-balancing of the single-column pier bridge. Specifically, the balancing component 3 forms a lever structure, with the first support 31 located on the resistance arm of the lever structure and the second support 33 located on the power arm. When the main beam 1 experiences an overload eccentric load, the connecting component 4 transfers the unfavorable load to the second support 33. At this time, the second support 33 bears horizontal pressure and vertical tension. The horizontal pressure is balanced by the support reaction force of the single-column pier 2. The vertical tension is transferred through the second support 33 to the balancing component 32. The end of the balancing component 32 near the second support 33 has a vertically downward tension, which is transferred to the end of the balancing component 32 near the first support 31, giving the first support 31 a vertically upward force. The first support 31 is supported between the main beam 1 and the balancing component 32, so that the vertically upward force is balanced by the self-weight of the main beam 1, thereby significantly improving the overturning resistance of the single-column pier bridge.

[0051] like Figure 1 , Figure 2 and Figure 4 As shown, each of the balancing components 3 further includes a clamp 34, which is fixedly connected to the second support member 33; the clamps 34 of the two sets of balancing components 3 are spliced ​​together and sleeved on the side wall of the upper end of the single-column pier 2. In this embodiment, the size of the clamp 34 is adapted to the outer wall of the single-column pier 2 with the fiber-reinforced fabric bonded thereon, so that the balancing component 3 is stably sleeved on the upper end of the single-column pier 2 through the balancing member 32 and the clamp 34.

[0052] The clamp 43 has wing plates at both ends, with screw holes on the wing plates. Bolts pass through the screw holes to anchor the clamps 34 of the two sets of balancing components 3 together, reinforcing the top of the single-column pier 2 and significantly improving the local bearing capacity of the top of the single-column pier 2. This effectively prevents the part of the single-column pier 2 that serves as a fulcrum from being crushed. It is easy to see that the greater the anchoring force between the two sets of clamps 34, the better the reinforcement effect on the top of the single-column pier 2. To allow for deformation space for bolt anchoring of the two sets of clamps 34, in this embodiment, preferably, there is a gap between the two sets of clamps 34 when they are fitted onto the single-column pier 2. When anchored, the two sets of clamps 34 hug the top of the single-column pier 2 and deform closer together through the reserved space. At this time, the clamps 34 generate circumferential pressure on the concrete covered by fiber-reinforced fabric. The greater the anchoring force, the greater the deformation, the greater the circumferential pressure generated, and thus the better the reinforcement effect on the top of the single-column pier 2.

[0053] In this embodiment, the anti-overturning device further includes fiber-reinforced fabric, which covers the single-column pier 2 and is located between the single-column pier 2 and the clamp 34. By attaching the fiber-reinforced fabric to the top of the single-column pier 2, the local bearing capacity of the concrete at the top of the single-column pier 2 is increased, effectively preventing the portion of the single-column pier 2 that serves as a fulcrum from being crushed. The clamp 34 is installed on the fiber-reinforced fabric, generating circumferential pressure on the fiber-reinforced fabric and the concrete, thereby enhancing the reinforcement effect of the fiber-reinforced fabric. Preferably, in this embodiment, carbon fiber cloth is attached to the top of the single-column pier 2. The carbon fiber cloth has high tensile strength to strengthen the concrete at the top of the single-column pier 2.

[0054] like Figure 5 As shown, each of the connecting components 4 includes a first hinge 41, a second hinge 42, and a connecting rod 43. One end of the connecting rod 43 is hinged to the main beam 1 via the first hinge 41, and the other end is connected to the second support member 33 via the second hinge 42. In this embodiment, the connecting rod 43 is a reinforced concrete pipe, which gives it good load-bearing capacity and compressive strength, enabling it to withstand and transmit large loads. The reinforced concrete pipe is connected to the main beam 1 and the single-column pier 2 respectively via hinges, which is beneficial for force transmission.

[0055] The first hinge member 41 includes a first hinge support 411, a first pin 412, and a first hinge base 413. The first hinge support 411 is fixed to one end of the connecting rod 43, and the first hinge base 413 is mounted on the main beam 1. The first hinge support 411 is connected to the first hinge base 413 via the first pin 412. The first hinge support 411 and the first hinge base 413 can effectively support the load of the main beam 1 while ensuring stable force transmission.

[0056] Each of the connecting components 4 further includes expansion bolts 44, through which the first hinge base 413 is mounted on the main beam 1. The expansion bolts 44 tightly fit the first hinge base 413 to the bottom of the main beam 1, improving the installation stability of the connecting components 4.

[0057] The second hinge member 42 includes a second hinge support 421, a second pin 422, and a second hinge base 423. The second hinge support 421 is fixed to the other end of the connecting rod 43, and the second hinge base 423 is fixed to the second support member 33. The second hinge support 421 is connected to the second hinge base 423 by the second pin 422. The second hinge support 421 and the second hinge base 423 can effectively support the load of the connecting rod 43 while ensuring stable force transmission.

[0058] In summary, before installing the anti-overturning device, the concrete surface on top of the single-column pier 2 where the fiber-reinforced fabric needs to be adhered is cleaned to remove any attached materials and loose debris. Then, the pre-prepared fiber-reinforced fabric is adhered to the concrete pile surface and compacted with a special tool to ensure tight adhesion. After a certain curing time, the reinforced concrete pile is surface-finished and treated with anti-corrosion measures. Next, the main bodies of the two sets of balancing components 3 are hoisted to the top of the single-column pier 2 using pulley systems. Each set of balancing components 32 is placed horizontally at the edge of the single-column pier 2, and the lower end of the second support component 33 is pressed tightly against the side wall of the single-column pier 2. Two clamps 34 are anchored through the bolt holes using high-strength bolts to complete the installation of the balancing components 3. The next step is to install the second hinge base 423 at the lower end of the second support component 33. Simultaneously, holes need to be pre-drilled at appropriate locations at the bottom of the main beam 1, and then the first hinge base 413 is tightly fitted to the bottom of the main beam 1 using expansion bolts 44. Finally, the connecting rod 43 is lifted so that its two ends are connected to the first hinge base 413 and the second hinge base 423 respectively. At this point, the anti-overturning device is installed.

[0059] like Figure 3 As shown, the balancing component 32 is a box-shaped steel pipe. The box-shaped steel pipe is subjected to uniform stress, has high strength and rigidity, and can withstand large loads. At the same time, it is lightweight, which can reduce the overall structural load of the single-column pier 2. The balancing component 32 is provided with stiffening ribs 321, which can improve the local bearing capacity of the box-shaped steel pipe and prevent deformation of the box-shaped steel pipe.

[0060] like Figure 2 As shown, the balancing component 32 has an arc-shaped structure; the middle section of the balancing component 32 is connected to one end of the second support component 33; the number of the first support components 31 is not less than two, and each of the first support components 31 is evenly distributed at both ends of the balancing component 32.

[0061] In this embodiment, the balancing component 32 is designed as an arc-shaped structure to adapt to the sidewall of the single-column pier 1, ensuring the stable installation of the balancing assembly 3. Simultaneously, a second support component 33 and a first support component 31 are connected to the middle section and both ends of the arc-shaped balancing component 32, respectively, to form an effective lever structure. This allows the self-weight of the main beam 1 to balance the overloaded eccentric load, thereby improving the overturning resistance of the single-column pier bridge. The two balancing components 32 are arranged opposite each other, with gaps between adjacent points to provide space for the deformation of each balancing component 32.

[0062] In this embodiment, as Figure 2 As shown, the first support member 31 is a support, and there are two of them, which are distributed along the radial direction of the single column pier 2; the second support member 33 is an arc-shaped steel plate. The arc design allows the second support member 33 to fit better against the side wall of the single column pier 2, improving the installation stability. At the same time, the arc-shaped steel plate has a certain length to facilitate the force transmission of the connecting components.

[0063] like Figure 2 As shown, the second support member 33 has a first reinforcing member 331 and a second reinforcing member 332 formed at both ends. The first reinforcing member 331 corresponds to the balance member 32, and the second reinforcing member 332 corresponds to the second hinge base 423. Because the second support member 33 has the first reinforcing member 331 and the second reinforcing member 332 at both ends, a gap is formed between the second support member 33 and the side wall of the single-column pier 2 to facilitate the installation of the fiber-reinforced fabric and the clamp 34. At the same time, the first reinforcing member 331 and the second reinforcing member 332 can improve the strength at both ends of the second support member 33 and improve the local compressive strength.

[0064] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A bridge anti-overturning device, the bridge comprising a main beam (1) and a single-column pier (2), the single-column pier (2) being supported below the main beam (1), characterized in that, The anti-overturning device includes: Two sets of balancing components (3) and two sets of connecting components (4); along the width direction of the main beam (1), the two sets of balancing components (3) are arranged opposite to each other and are fitted on the top of the single column pier (2); along the width direction of the main beam (1), the two sets of connecting components (4) are respectively arranged on both sides of the single column pier (2), and one end of each connecting component (4) is connected to the main beam (1), and the other end is connected to one of the balancing components (3); The balancing component (3) includes a first support (31), a balancing component (32), and a second support (33). The balancing component (32) is horizontally placed at the top of the single-column pier (2). One end of the second support (33) is fixedly connected to the balancing component (32), and the other end is connected to the connecting component (4). The first support (31) is located above the balancing component (32), and the first support (31) is supported between the main beam (1) and the balancing component (32). Each of the connecting components (4) includes a first hinge (41), a second hinge (42), and a connecting rod (43); one end of the connecting rod (43) is hinged to the main beam (1) through the first hinge (41), and the other end is connected to the second support member (33) through the second hinge (42); The balancing component (32) is a box-shaped steel pipe, and the balancing component (32) is provided with stiffening ribs (321).

2. The bridge anti-overturning device according to claim 1, characterized in that, Each of the balancing components (3) further includes a clamp (34), which is fixedly connected to the second support member (33); the clamps (34) of the two sets of balancing components (3) are spliced ​​together and fitted on the side wall at the upper end of the single column pier (2).

3. A bridge anti-overturning device according to claim 2, characterized in that, It also includes fiber-reinforced fabric, which covers the monocolumn (2) and is located between the monocolumn (2) and the clamp (34).

4. A bridge anti-overturning device according to claim 1, characterized in that, The first hinge component (41) includes a first hinge support (411), a first pin (412) and a first hinge base (413). The first hinge support (411) is fixed to one end of the connecting rod (43), and the first hinge base (413) is installed on the main beam (1). The first hinge support (411) is connected to the first hinge base (413) through the first pin (412).

5. A bridge anti-overturning device according to claim 4, characterized in that, Each of the connecting components (4) further includes an expansion bolt (44), through which the first hinge base (413) is mounted on the main beam (1).

6. A bridge anti-overturning device according to claim 1, characterized in that, The second hinge member (42) includes a second hinge support (421), a second pin (422), and a second hinge base (423); the second hinge support (421) is fixed to the other end of the connecting rod (43), the second hinge base (423) is fixed to the second support member (33), and the second hinge support (421) is connected to the second hinge base (423) by the second pin (422).

7. A bridge anti-overturning device according to claim 1, characterized in that, The balancing component (32) has an arc-shaped structure; the middle section of the balancing component (32) is connected to one end of the second support component (33); there are no fewer than two first support components (31), and each first support component (31) is evenly distributed at both ends of the balancing component (32).

8. A bridge anti-overturning device according to claim 6, characterized in that, The second support member (33) has a first reinforcing member (331) and a second reinforcing member (332) formed at both ends. The first reinforcing member (331) corresponds to the balance member (32), and the second reinforcing member (332) corresponds to the second hinge base (423).

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