High-performance concrete bridge widening structure

Abstract

The utility model provides a high-performance concrete bridge widening structure. The high-performance concrete bridge widening structure comprises a body, a connecting assembly and a fixing assembly. The connecting assembly comprises a first connecting piece, a first fixing column and a second fixing column, the first fixing column and the second fixing column are arranged on the first connecting piece, the first connecting piece is arranged on the body, and the first fixing column and the second fixing column are arranged on the two opposite side faces of the first connecting piece respectively. The fixing assembly comprises a first fixing piece and a second fixing piece, one ends of the first fixing piece and the second fixing piece are arranged on the two sides of the body, the first fixing piece is embedded in the new bridge, and the second fixing piece is embedded in the old bridge. The main body is provided with a gap, and the gap is arranged between the first fixing piece and the second fixing piece. According to the high-performance concrete bridge widening structure, relative slippage of a new bridge and an old bridge in the horizontal direction is effectively limited through the first fixing columns and the second fixing columns in the connecting assemblies. The gap in the main body allows the new bridge and the old bridge to generate certain relative displacement in the vertical direction, so that the problem of internal stress concentration caused by foundation settlement is effectively relieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of highway bridge widening, and particularly relates to a high-performance concrete bridge widening structure. BACKGROUND

[0002] With the continuous growth of traffic demand, the insufficient capacity and carrying capacity of existing bridges have become an important factor restricting traffic efficiency. To solve this problem, bridge widening technology is widely used. By adding new bridge structures on the basis of old bridges, not only can the use width of the bridge be expanded, but also the traffic capacity can be effectively improved without completely demolishing the old bridge. This technology is particularly suitable for bridge reconstruction projects in busy traffic areas such as urban expressways and highways.

[0003] Bridge widening technology usually realizes the connection and mechanical property matching of new and old bridge structures. To ensure the safety of the overall structure, steel bars are used to connect the new and old bridges during widening, so as to effectively transfer the lateral shear force and enhance the overall stability. This technology not only meets the traffic expansion demand, but also reduces the cost and construction period of new bridges, and has important significance for the expansion and reconstruction of bridges.

[0004] However, due to the different foundation conditions, construction time and load changes of new and old bridges, settlement differences are often inevitable. The steel bars arranged transversely may face the following problems when the settlement difference is large: first, the steel bars may stretch and bend due to the different settlements of new and old bridges, resulting in an increase in internal stress of the steel bars and a decrease in connection strength; second, the uneven stress caused by settlement may cause the concrete at the joint to crack, further weakening the overall stress performance of the new and old bridges. These problems may lead to the failure of shear force transfer between the new and old bridges, affecting the structural stability and durability of the bridge, and even causing safety hazards. Therefore, how to better balance the lateral shear force transfer and vertical settlement adaptation is a problem to be solved in bridge widening design. SUMMARY

[0005] Therefore, it is necessary to provide a high-performance concrete bridge widening structure to solve the above problems.

[0006] Embodiments of the present application provide a high-performance concrete bridge widening structure, comprising:

[0007] a main body;

[0008] a connecting assembly comprising a first connecting piece, a first fixed column and a second fixed column arranged on the first connecting piece, the first connecting piece being arranged on the main body, and the first fixed column and the second fixed column being arranged on opposite sides of the first connecting piece respectively, for preventing the relative sliding of the new and old bridges in the horizontal direction;

[0009] The fixed assembly comprises a first fixing part and a second fixing part arranged at two sides of the main body, the first fixing part is embedded in the new bridge, and the second fixing part is embedded in the old bridge, and the first fixing part and the second fixing part are used for splicing the new bridge and the old bridge.

[0010] The main body has a gap between the first fixing part and the second fixing part, and the gap is used for buffering the relative displacement of the new bridge and the old bridge in the vertical direction.

[0011] In at least one embodiment of the present application, the first fixing column comprises a fixing part and a bolted part fixedly connected with the fixing part, the first connecting part is provided with an inner cavity, the fixing part is arranged in the inner cavity and fixedly connected with the first connecting part, and the bolted part partially protrudes from the inner cavity and is fixedly connected with the bridge.

[0012] In at least one embodiment of the present application, the bolted part is arranged at the center of the fixing part in the arrangement direction of the bolted part.

[0013] The first fixing part further comprises a first reinforcing part, one end of the first reinforcing part is arranged on the fixing part in the arrangement direction of the bolted part, the other end of the first reinforcing part is fixedly connected with the first connecting part, and the first reinforcing part is symmetrically arranged along the axis of the bolted part.

[0014] In at least one embodiment of the present application, a plurality of first fixing columns are arranged side by side along the length direction of the first connecting part, and the first fixing columns and the second fixing columns are symmetrically arranged along the geometric center of the first connecting part.

[0015] In at least one embodiment of the present application, the first fixing part comprises a second connecting part and a locking part arranged on the second connecting part, and the second connecting part is fixedly connected with the main body.

[0016] The locking parts are arranged side by side along the length direction of the second connecting part and symmetrically arranged along the geometric center of the connecting part.

[0017] In at least one embodiment of the present application, the locking part comprises a connecting part and a locking part, one end of the connecting part is arranged on the second connecting part, and the other end of the connecting part is fixedly connected with the locking part.

[0018] The locking part is arranged in an arc shape, and the connecting part is arranged on the inner surface of the locking part.

[0019] In at least one embodiment of the present application, the first fixing part further comprises a second reinforcing part, the connecting part is arranged at one end of the locking part, and the second reinforcing part is arranged at the other end of the locking part and fixedly connected with the connecting part.

[0020] In at least one embodiment of the present application, the body surface extends outward to form a fixing block, a plurality of fixing blocks are annularly arranged on the body, and the first connecting member and the second connecting member are fixedly connected with the fixing block.

[0021] In at least one embodiment of the present application, the fixing block is provided with a fixing groove, and the first connecting member and the second connecting member are partially inserted into the fixing groove and welded with the fixing groove.

[0022] In at least one embodiment of the present application, the first fixing member is arranged in a vertical direction, and the first fixing member and the second fixing member are symmetrically arranged along the gap.

[0023] The high-performance concrete bridge widening structure provided above effectively limits the relative sliding of the new and old bridges in the horizontal direction through the first fixing column and the second fixing column in the connecting assembly. The transverse stability of the bridge after widening is enhanced, and the gap designed in the body allows the new and old bridges to produce a certain relative displacement in the vertical direction, thereby effectively relieving the internal stress concentration problem caused by the difference in foundation settlement. The firm connection of the fixing assembly and the matching arrangement of the gap take into account the stability of the bridge in the horizontal and vertical directions during widening, and the integrity of the bridge after splicing is significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a perspective view of a high-performance concrete bridge widening structure in an embodiment of the present application.

[0025] Figure 2 It is an exploded view of a high-performance concrete bridge widening structure according to the figure.

[0026] Figure 3 It is Figure 1 It is an internal structure perspective view of a connecting assembly of a high-performance concrete bridge widening structure.

[0027] Figure 4 It is Figure 3 It is a top view of a high-performance concrete bridge widening structure.

[0028] MAIN ELEMENT SYMBOL EXPLANATION

[0029] 100. A high-performance concrete bridge widening structure; 10, main body; 11, gap; 12, fixed block; 121, fixed groove; 20, connecting assembly; 21, first connecting piece; 211, inner cavity; 22, first fixed column; 221, fixed part; 222, bolted piece; 223, first reinforcing part; 23, second fixed column; 30, fixed assembly; 31, first fixed piece; 311, second connecting piece; 312, locking piece; 312a, connecting part; 312b, locking part; 313, second reinforcing part; 32, second fixed piece. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only part of, but not all of the embodiments of the present application.

[0031] It should be noted that when one component is considered to be "connected" to another component, it can be directly connected to the other component or can exist simultaneously with a middle component. When one component is considered to be "provided on" another component, it can be directly provided on the other component or can exist simultaneously with a middle component. The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and the like used herein are for illustrative purposes only.

[0032] The embodiments of the present application provide a high-performance concrete bridge widening structure, comprising a main body, a connecting assembly and a fixed assembly;

[0033] The connecting assembly comprises a first connecting piece and first and second fixed columns provided on the first connecting piece, the first connecting piece is provided on the main body, and the first and second fixed columns are respectively provided on opposite sides of the first connecting piece to prevent relative sliding of the new and old bridges in the horizontal direction;

[0034] The fixed assembly comprises first and second fixed pieces provided at one end on both sides of the main body, the first fixed piece is embedded in the new bridge, and the second fixed piece is embedded in the old bridge to splice the new and old bridges;

[0035] The main body has a gap, the gap is provided between the first and second fixed pieces, and is used to buffer the relative displacement of the new and old bridges in the vertical direction.

[0036] The high-performance concrete bridge widening structure provided above effectively limits the relative sliding of the new and old bridges in the horizontal direction through the first fixed column and the second fixed column in the connecting assembly, enhances the lateral stability of the bridge after widening, and allows the new and old bridges to produce a certain relative displacement in the vertical direction through the gap designed in the main body, thereby effectively relieving the internal stress concentration problem caused by the foundation settlement difference. The firm connection of the fixed assembly and the matching setting of the gap take into account the lateral and vertical stability in the bridge widening, and the integrity of the bridge after splicing is significantly improved.

[0037] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0038] Please refer to Figures 1-4 The embodiments of the present application provide a high-performance concrete bridge widening structure 100, comprising:

[0039] a main body 10;

[0040] a connecting assembly 20 comprising a first connecting piece 21 and a first fixed column 22 and a second fixed column 23 arranged on the first connecting piece 21, the first connecting piece 21 being arranged on the main body 10, the first fixed column 22 and the second fixed column 23 being arranged on opposite sides of the first connecting piece 21 respectively, for preventing the relative sliding of the new and old bridges in the horizontal direction;

[0041] a fixed assembly 30 comprising a first fixed piece 31 and a second fixed piece 32 arranged on both sides of the main body 10, the first fixed piece 31 being embedded in the new bridge, the second fixed piece 32 being embedded in the old bridge, for splicing the new and old bridges;

[0042] wherein the main body 10 has a gap 11 arranged between the first fixed piece 31 and the second fixed piece 32, for buffering the relative displacement of the new and old bridges in the vertical direction.

[0043] Specifically, the main body 10 is the core part of the entire widening structure, providing a mounting base for the connecting assembly 20 and the fixed assembly 30, and bearing various loads generated during the splicing process of the new and old bridges. The main body 10 can uniformly bear and transmit the horizontal and vertical forces between the new and old bridges, effectively dispersing the stress and ensuring the overall stability and reliability of the splicing part. The first connecting piece 21 provides a stable platform for mounting the first fixed column 22 and the second fixed column 23, fixing the horizontal connection between the main body 10 and the new and old bridges. The two fixed columns are arranged on opposite sides of the first connecting piece 21, respectively, for providing bidirectional horizontal limiting force. The double-column arrangement further enhances the stability of the new and old bridges in the horizontal direction, reducing the damage caused by horizontal sliding to the splicing part.

[0044] Further, the first fixing member 31 is embedded in the new bridge, and the second fixing member 32 is embedded in the old bridge, which jointly act to realize the splicing of the new and old bridges. The setting of the fixing members ensures the stable connection of the new and old bridges, and improves the shear capacity and bearing capacity of the bridge splicing part. The gap is arranged between the first fixing member 31 and the second fixing member 32, which provides a buffer space when the new and old bridges have settlement difference.

[0045] Further, the settlement of the new and old bridges in the vertical direction will press the first fixing member 31 and the second fixing member 32 to the main body 10 respectively, and the gap 11 arranged in the main body 10 provides a buffering effect, so that the force transmitted to the main body 10 can be released or dispersed through the gap 11, avoiding that the main body 10 bears excessive direct stress.

[0046] In a specific embodiment, the first fixing column 22 includes a fixing part 221 and a bolted member 222 fixedly connected with the fixing part 221, and the first connecting member 21 is provided with an inner cavity 211, and the fixing part 221 is arranged in the inner cavity 211 and fixedly connected with the first connecting member 21, and the bolted member 222 partially extends out of the inner cavity 211 and is fixedly connected with the bridge.

[0047] Specifically, the fixing part 221 is the core bearing structure of the first fixing column 22, which is located in the inner cavity 211 of the first connecting member 21 and is fixedly connected with the first connecting member 21. It is mainly responsible for transmitting the connecting force of the bolted member 222 to the first connecting member 21, and at the same time provides stable support to ensure the reliability of the connection. The bolted member 222 partially extends out of the inner cavity 211 of the first connecting member 21, and the connection mode (such as threaded connection, welding, etc.) between the bolted member 222 and the bridge ensures the stability of the splicing of the new and old bridges.

[0048] In a specific embodiment, as viewed along the arrangement direction of the bolted member 222, the bolted member 222 is arranged at the center of the fixing part 221.

[0049] The first fixing column 22 further includes a first reinforcing part 223, which is arranged at one end of the fixing part 221 and the other end is fixedly connected with the first connecting member 21 along the arrangement direction of the bolted member 222, and the first reinforcing part 223 is symmetrically arranged along the axis of the bolted member 222.

[0050] Specifically, the bolted member 222 is located at the center of the fixing part 221, so that the bolted member 222 can uniformly transmit horizontal shear force and vertical load to the fixing part 221 and the first connecting member 21 when stressed, avoiding the influence of torque caused by eccentric force. The central arrangement makes the fixing part 221 symmetrical as a whole, which enhances the stress stability of the fixing column and avoids deformation or loose connection caused by uneven stress.

[0051] Further, the first reinforcing part 223 is connected to the fixing part 221 at one end and connected to the first connecting member 21 at the other end, providing an additional support path to evenly distribute the load transmitted by the bolted member 222 to the first connecting member 21, reducing stress concentration of the fixing part 221 and the bolted member 222. The reinforcing part is symmetrically arranged along the axis of the bolted member 222, avoiding lateral displacement or distortion of the fixing column after being stressed. The symmetric arrangement eliminates the imbalance that may occur when stressed, avoiding excessive local deformation or damage of the fixing column.

[0052] In a specific embodiment, a plurality of the first fixing columns 22 are arranged side by side along the length direction of the first connecting member 21, and the first fixing columns 22 and the second fixing columns 23 are symmetrically arranged along the geometric center of the first connecting member 21.

[0053] Specifically, the side-by-side arrangement of the first fixing columns 22 forms multiple stress points, allowing the horizontal and vertical loads to be more evenly distributed throughout the connecting member, avoiding failure due to excessive load on a single fixing column. The symmetric arrangement of the first fixing member 31 and the second fixing member 32 allows the new and old bridges to be more evenly stressed at the splicing location, avoiding structural deformation or damage caused by eccentric stress.

[0054] Further, the plurality of first fixing columns 22 are evenly arranged along the length direction of the first connecting member 21, and the bolted member 222 is fixed to the new and old bridges, forming an overall connection. When the bridge is subjected to horizontal load, the load is evenly distributed to the first connecting member 21 through the first fixing columns 22, reducing stress concentration of a single fixing column.

[0055] The first fixing columns 22 and the second fixing columns 23 are symmetrically arranged along the geometric center of the first connecting member 21, ensuring that the new and old bridges are evenly stressed in connection, and the forces of the first fixing columns 22 and the second fixing columns 23 are transmitted to the connecting member. Avoiding relative slipping between the new and old bridges, allowing them to be stressed together, improving the overall stiffness and strength of the structure. The symmetric arrangement effectively resists the torque between the new and old bridges caused by uneven load or temperature changes, further improving the overall torsional resistance of the connection.

[0056] In a specific embodiment, the first fixing member 31 includes a second connecting member 311 and a locking member 312 arranged on the second connecting member 311, and the second connecting member 311 is fixedly connected to the main body 10.

[0057] The locking members 312 are arranged side by side along the length direction of the second connecting member 311 and symmetrically arranged along the geometric center of the connecting member.

[0058] Specifically, the second connecting member 311 serves as the core structure of the first fixing member 31, connecting the new and old bridges to the main body 10 and providing stable mechanical support. Through the fixed connection with the main body 10, the stability and earthquake resistance of the entire widening structure are ensured.

[0059] Further, the locking member 312 is designed mainly to ensure the stable engagement of the connecting member with the bridge structure. The locking member 312 has a gripping and fixing function, which can effectively fix the fixing member in the bridge. The locking member 312 is arranged in parallel along the length direction of the second connecting member 311 and symmetrically along the geometric center, which uniformly distributes the locking member 312 on the entire connecting member, avoids local stress concentration, and increases the contact area with the interior of the new bridge, which can better fix the first fixing member in the bridge. The fixing member firmly connects the new bridge to the main body 10 through the locking member 312, and cooperates with the second fixing member 32 to participate in the splicing of the new and old bridges. The fixing member plays a bridging role between the new and old bridges, and the locking member 312 ensures the firmness of the connection.

[0060] In a specific embodiment, the locking member 312 includes a connecting part 312a and a locking part 312b. One end of the connecting part 312a is arranged on the second connecting member 311, and the other end is fixedly connected with the locking part 312b.

[0061] The locking part 312b is arranged in an arc shape, and the connecting part 312a is arranged on the inner surface of the locking part 312b.

[0062] Specifically, one end of the connecting part 312a is arranged on the second connecting member 311, and the other end is fixedly connected with the locking part 312b. The connecting part 312a is mainly used to connect the locking member 312 with the second connecting member 311, ensuring the stability of the locking member 312 during the connection process. It provides a solid base for the locking member 312, ensuring that the locking part 312b can play its role. The locking part 312b is arranged in an arc shape, and the main purpose of this design is to increase the contact area and stability of the locking part 312b with the internal structure of the bridge. The arc-shaped locking part 312b can better adapt to the curved surface of the bridge structure, provide uniform contact force, and ensure that the locking member 312 can firmly grasp the internal structure of the bridge during the splicing process.

[0063] Further, the fixed connection between the locking part 312b and the connecting part 312a ensures the stability of the structure of the locking member 312 during the entire splicing process. Through such a connection, the locking part 312b can effectively grip and fix the connecting member in the bridge, while avoiding possible displacement or loosening during the splicing process. This connection method helps to improve the firmness of the connecting part 312a, preventing loosening or misalignment of the bridge.

[0064] In a specific embodiment, the first fixing member 31 further comprises a second reinforcing portion 313, the connecting portion 312a is arranged at one end of the locking portion 312b, and the second reinforcing portion 313 is arranged at the other end of the locking portion 312b and fixedly connected with the connecting portion 312a.

[0065] Specifically, the second reinforcing portion 313 mainly plays a role of reinforcement and stabilization. It is located at the other end of the locking portion 312b, aiming to provide additional support and anti-tension for the locking portion 312b. By fixedly connecting the second reinforcing portion 313 with the connecting portion 312a, the structural strength of the locking portion 312b can be effectively enhanced, preventing displacement or deformation of the locking portion 312b due to uneven force or external force during the bridge splicing process. The connecting portion 312a is connected with one end of the locking portion 312b, which helps to ensure the stability of the locking member 312. The design of the connecting portion 312a enables the locking portion 312b to be firmly fixed with the second connecting member 311 or other connecting structure, thereby ensuring the firmness of the splicing part. The connecting portion 312a not only provides a fixed point, but also helps to effectively transmit force to the fixing member and its contact point with the bridge.

[0066] Further, the connection of the second reinforcing portion 313 with the other end of the locking portion 312b helps to keep the locking portion 312b balanced when under stress, avoiding deflection or damage. The second reinforcing portion 313 increases the anti-tension capacity of the locking portion 312b, which can withstand greater splicing load, ensuring that the bridge connection will not be broken or loose due to excessive stress in long-term use. The fixed connection of the second reinforcing portion 313 with the connecting portion 312a provides stronger structural stability. The fixed connection effectively prevents the locking portion 312b from loosening or displacing during splicing, ensuring that the splicing part can be firmly maintained in the correct position.

[0067] In a specific embodiment, the surface of the main body 10 extends outward to form a fixing block 12, and a plurality of fixing blocks 12 are arranged annularly on the main body 10, and the first connecting member 21 and the second connecting member 311 are fixedly connected with the fixing block 12.

[0068] Specifically, the design of the fixing block 12 extending outward from the surface of the main body 10 helps to enhance the structural stability of the main body 10. The fixing block 12 plays a role of enhancing the connection strength of the connecting member, providing a stable mounting point so that the first connecting member 21 and the second connecting member 311 can be firmly fixed on the main body 10. The fixing block 12 provides a fixed basis for the connecting member, enabling the connecting portion 312a to stably bear force and effectively transmit force. The fixing block 12 enhances the connection stability between the main body 10 and the connecting member. It provides a larger contact area, reduces stress concentration at the connecting portion 312a, and thus improves the durability of the structure.

[0069] Further, the plurality of fixing blocks 12 are arranged annularly on the main body 10 to form an annular arrangement, which can uniformly distribute forces and increase the contact area with the connecting member. The annular arrangement avoids the connecting member 312a from being offset during splicing, and through the uniform distribution of the fixing blocks 12, the forces from different directions during splicing can be better shared. This structural design improves the stability of the splicing part, ensuring that the connection between the new and old bridges is more secure. Through the annular distribution, the shear resistance and tensile resistance of the connecting member 312a are enhanced. Local stress concentration is effectively avoided, and the contact between the connecting member and the main body 10 is more uniform.

[0070] In a specific embodiment, the fixing blocks 12 are provided with fixing grooves 121, and the first connecting member 21 and the second connecting member 311 both partially extend into the fixing grooves 121 and are welded with the fixing grooves 121.

[0071] Specifically, the design of the fixing grooves 121 on the fixing blocks 12 can provide a precise and stable fixing position for the first connecting member 21 and the second connecting member 311. The design of the fixing grooves 121 not only accurately guides the installation of the connecting members, but also ensures that the connecting members can be firmly fixed during welding. The shape and size of the grooves can be optimized according to the shape of the connecting members to ensure that the connecting members can be stably embedded and effectively transmit forces.

[0072] In a specific embodiment, the first fixing member 31 is arranged in an inclined manner along the vertical direction, and the first fixing member 31 and the second fixing member 32 are symmetrically arranged along the gap 11.

[0073] Specifically, the inclined arrangement of the first fixing member 31 enables it to better adapt to the vertical load, and the design of the inclination angle provides a larger contact surface, enhancing the bonding strength of the fixing member and the connecting member. This arrangement helps to uniformly transmit forces and avoid local stress concentration. The symmetrical arrangement of the second fixing member 32 enhances the balance of the structure and effectively improves the overall stability of the structure.

[0074] Further, by combining the connecting assembly 20 to divide the first fixing member 31, the second fixing member 32, and the connecting member 312a into an annular structure and form a triangular arrangement, the stability of the structure can be effectively enhanced. The triangular structure can form a uniform force distribution path when subjected to stress, and the stress and support capacity of each corner point can support each other, so that the strength and stability of the entire connecting member 312a are improved.

[0075] The above only describes the embodiments of the present application, and it should be noted that those skilled in the art can make improvements without departing from the inventive concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A high-performance concrete bridge widening structure, characterized in that, include: main body; The connecting component includes a first connector and a first fixing post and a second fixing post disposed on the first connector. The first connector is disposed on the main body, and the first fixing post and the second fixing post are respectively disposed on opposite sides of the first connector to prevent relative slippage between the new and old bridges in the horizontal direction. The fixing component includes a first fixing member and a second fixing member with one end located on both sides of the main body. The first fixing member is embedded in the new bridge and the second fixing member is embedded in the old bridge, for splicing the new and old bridges. The main body has a gap between the first fixing member and the second fixing member, which is used to buffer the relative displacement of the new and old bridges in the vertical direction.

2. The high-performance concrete bridge widening structure according to claim 1, characterized in that, The first fixed column includes a fixed part and a bolted member fixedly connected to the fixed part. The first connecting member has an inner cavity. The fixed part is located in the inner cavity and fixedly connected to the first connecting member. The bolted member extends out of the inner cavity and is fixedly connected to the bridge.

3. The high-performance concrete bridge widening structure according to claim 2, characterized in that, Viewed along the direction in which the bolt is installed, the bolt is located at the center of the fixing part; The first fixing post further includes a first reinforcing part. Along the setting direction of the bolted member, one end of the first reinforcing part is disposed on the fixing part, and the other end is fixedly connected to the first connecting member. The first reinforcing part is symmetrically arranged along the axis of the bolted member.

4. The high-performance concrete bridge widening structure according to claim 3, characterized in that, Multiple first fixing posts are arranged side by side along the length of the first connector, and the first fixing posts and the second fixing posts are arranged symmetrically around the geometric center of the first connector.

5. A high-performance concrete bridge widening structure according to claim 1, characterized in that, The first fixing member includes a second connecting member and a locking member disposed on the second connecting member, wherein the second connecting member is fixedly connected to the main body; The locking members are arranged side by side along the length of the second connecting member and are symmetrically arranged along the geometric center of the connecting member.

6. A high-performance concrete bridge widening structure according to claim 5, characterized in that, The locking member includes a connecting part and a locking part. One end of the connecting part is disposed on the second connecting member, and the other end is fixedly connected to the locking part. The locking part is arc-shaped, and the connecting part is located on the inner surface of the locking part.

7. A high-performance concrete bridge widening structure according to claim 6, characterized in that, The first fixing member further includes a second reinforcing part. The connecting part is disposed at one end of the locking part, and the second reinforcing part is disposed at the other end of the locking part and is fixedly connected to the connecting part.

8. A high-performance concrete bridge widening structure according to claim 5, characterized in that, The main body extends outward to form a fixing block, and multiple fixing blocks are arranged in a ring on the main body. The first connector and the second connector are both fixedly connected to the fixing block.

9. A high-performance concrete bridge widening structure according to claim 8, characterized in that, The fixing block has a fixing groove, and both the first connector and the second connector partially extend into the fixing groove and are welded to the fixing groove.

10. A high-performance concrete bridge widening structure according to claim 1, characterized in that, The first fixing member is inclined in the vertical direction, and the first fixing member and the second fixing member are symmetrically arranged along the gap.

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