Steel structure bridge reinforcing and supporting device

Abstract

The utility model relates to the technical field of steel bridge reinforcing and supporting, in particular to a steel structure bridge reinforcing and supporting device which comprises a vertical steel pipe column arranged at the bottom of a steel structure bridge in a supporting mode, and near-end reinforcing structures are installed on the upper portions of the two sides of the vertical steel pipe column. The tops of the two sides of the near-end reinforcing structure are fixedly connected with the outer side walls of the two sides of the steel structure bridge correspondingly, the far-end reinforcing structures are installed on the left side and the right side of the near-end reinforcing structure correspondingly, and the tops of the two far-end reinforcing structures are both bolted and fixed to the steel structure bridge. The lower ends of the two far-end reinforcing structures are both fixedly connected with the vertical steel pipe column, and a concrete stand column supporting unit formed through pouring is built in a center cavity of the vertical steel pipe column. The composite supporting structure is formed by the vertical steel pipe column and the concrete stand column in the center cavity, loads are dispersed through the rigidity of the steel pipe and the compressive strength of concrete, and the supporting performance in the vertical direction and the bearing capacity of components are improved.

Description

Technical Field

[0001] This utility model relates to the field of steel bridge reinforcement and support technology, and in particular to a steel structure bridge reinforcement and support device. Background Technology

[0002] Steel structure bridges are widely used in modern steel structure bridge construction due to their advantages such as light weight, high strength, and short construction period.

[0003] After being subjected to vehicle loads, wind loads, temperature changes, and environmental erosion for a long time, steel structure bridges are prone to problems such as steel beam deformation and local instability, which seriously affect the safety and service life of steel structure bridges. Therefore, it is essential to provide effective support and reinforcement for steel structure bridges.

[0004] Currently, the main problems with reinforcement and support technologies for steel beams in steel structure bridges are as follows:

[0005] Firstly, the traditional single-point support reinforcement method only sets up columns at the corresponding support points at the bottom of the steel beam. The support range of the steel beam at the single-point support position is limited. When the load is large, the steel beam is prone to large deformation or even local buckling in the non-support area, and the reinforcement effect is limited.

[0006] Secondly, most reinforced support structures use steel columns made of a single material. Although steel has high strength, it has poor corrosion resistance. In complex natural environments, steel columns are prone to rust, which leads to a decrease in the structural load-bearing capacity and requires frequent maintenance and replacement, increasing the cost of use.

[0007] Based on the deficiencies in the existing technology, this utility model designs a new type of steel structure bridge reinforcement and support device that can achieve multi-point side support, improve structural stability and durability, so as to better solve the problems existing in the existing technology. Utility Model Content

[0008] To solve one of the aforementioned technical problems, the present invention employs the following technical solution: a steel structure bridge reinforcement and support device, comprising a vertical steel pipe column supported at the bottom of a steel structure bridge, with proximal reinforcement structures installed on the upper sides of both sides of the vertical steel pipe column, the tops of the proximal reinforcement structures being fixedly connected to the outer side walls of the steel structure bridge on both sides respectively, and distal reinforcement structures being installed on the left and right sides of the proximal reinforcement structures respectively, the tops of both distal reinforcement structures being bolted to the steel structure bridge, the lower ends of both distal reinforcement structures being fixedly connected to the vertical steel pipe column, the bottom of the vertical steel pipe column extending below the ground and pre-embedded and fixed, and a cast-in-place concrete column support unit being constructed in the central cavity of the vertical steel pipe column, the tops of the vertical steel pipe column and the tops of the concrete column support unit being fixedly connected to the steel structure bridge by a number of expansion bolts.

[0009] Based on any of the above technical solutions, a further optimization is made as follows: the proximal reinforcement structure includes a constraint cylinder fixedly sleeved on the upper outer side wall of the vertical steel pipe column. The constraint cylinder is fixedly connected to the vertical steel pipe column by a number of main bolts. On both sides of the upper part of the constraint cylinder, proximal U-shaped connecting brackets are integrally formed and connected by proximal connecting plates. The proximal U-shaped connecting brackets are clamped to both sides of the outer side wall of the steel structure bridge. The U-shaped cavity of the proximal U-shaped connecting bracket is sleeved on both sides of the outer side wall of the steel structure bridge and fixed by side connecting bolts at corresponding positions.

[0010] Based on any of the above technical solutions, a further optimization is made as follows: the distal reinforcement structure includes distal U-shaped connecting brackets spaced apart on the outside of the corresponding proximal U-shaped connecting brackets. The distal U-shaped connecting brackets are engaged with both sides of the outer wall of the steel structure bridge. The U-shaped cavity of the distal U-shaped connecting bracket is sleeved on both sides of the outer wall of the steel structure bridge and bolted and fixed by side connecting bolts at corresponding positions. A distal connecting plate is integrally formed on the side of the distal U-shaped connecting bracket facing the vertical steel pipe column. The lower end of the distal connecting plate is vertically arranged and fixed relative to the vertical steel pipe column.

[0011] Based on any of the above technical solutions, a further optimization is made as follows: several horizontal connecting bolts are arranged at intervals along the front-back direction in the middle of the vertical steel pipe column, and both ends of each horizontal connecting bolt penetrate to the outside of the far-end connecting plate and the two far-end connecting plates, the constraint cylinder and the vertical steel pipe column are connected and fixed by locking nuts.

[0012] Based on any of the above technical solutions, a further optimization is made as follows: the concrete column support unit includes a concrete column cast and formed inside the central cavity of the steel structure bridge, the lower end of the concrete column extends below the ground and is fixedly installed in the pre-embedded part, and the top of the concrete column is bolted and fixed to the bottom of the steel structure bridge by expansion bolts.

[0013] Based on any of the above technical solutions, a further optimization is made as follows: several interlocking teeth are integrally formed and fixed on both sides of the inner wall of the central cavity of the vertical steel pipe column from top to bottom, and each of the interlocking teeth is cast inside the concrete column, with the interlocking teeth on both sides arranged alternately.

[0014] Based on any of the above technical solutions, a further optimization is made as follows: several anti-detachment rebar heads are placed overlapping from top to bottom inside the central cavity of the vertical steel pipe column, and both ends of each anti-detachment rebar head abut against the inner side wall of the central cavity of the vertical steel pipe column, and each anti-detachment rebar head is cast inside the concrete column.

[0015] Based on any of the above technical solutions, a further optimization is made: the bottom of the concrete column is lower than the bottom of the vertical steel pipe column.

[0016] Based on any of the above technical solutions, a further optimization is made as follows: several reinforcing ribs are fixedly welded at intervals along the outer side wall of the vertical steel pipe column above the ground, and the lower part of each reinforcing rib extends below the ground and is pre-embedded and fixed.

[0017] Based on any of the above technical solutions, a further optimization is made as follows: a steel structure truss frame is welded and fixed to the lower outer wall of the vertical steel pipe column below the ground, and the steel structure truss frame is pre-embedded and fixed.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model forms a composite support structure by using vertical steel pipe columns and concrete columns in the central cavity. It utilizes the rigidity of the steel pipes and the compressive strength of the concrete to distribute the load, thereby improving the vertical support performance and the load-bearing capacity of the components.

[0020] 2. This utility model forms a multi-layer support structure in the lateral direction by cooperating the constraint cylinder of the near-end reinforcement structure, the near-end U-shaped connecting bracket, the far-end U-shaped connecting bracket, and the far-end connecting plate of the far-end reinforcement structure, thereby expanding the support range and enhancing the lateral stability and overall connection strength of the bridge.

[0021] 3. This utility model enhances the integrity and reliability of the connection between the steel pipe column and the concrete column by embedding the interlocking teeth into the concrete column to form a mechanical interlocking force and by having the anti-detachment rebar head abut against the inner wall of the steel pipe column, thereby preventing the two from sliding or falling off relative to each other and improving structural safety. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a partial three-dimensional structural diagram of the present invention.

[0025] Figure 3 This is a cross-sectional structural diagram of the above-ground portion of this utility model.

[0026] In the diagram, 1. Vertical steel pipe column; 2. Steel structure bridge; 3. Expansion bolt; 4. Constraint cylinder; 5. Main bolt assembly; 6. Proximal end connecting plate; 7. Proximal end U-shaped connecting bracket; 8. Side connecting bolt assembly; 9. Distal end U-shaped connecting bracket; 10. Distal end connecting plate; 11. Horizontal connecting bolt; 12. Locking nut; 13. Concrete column; 14. Engaging teeth; 15. Anti-detachment rebar head; 16. Reinforcing rib plate; 17. Steel structure truss frame; 18. Ground. Detailed Implementation

[0027] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-3 As shown in the image.

[0028] Example 1: A steel structure bridge reinforcement and support device includes a vertical steel pipe column 1 supported at the bottom of a steel structure bridge 2. Near-end reinforcement structures are installed on the upper sides of both sides of the vertical steel pipe column 1. The tops of the two near-end reinforcement structures are respectively fixed to the outer side walls of the steel structure bridge 2. Far-end reinforcement structures are installed on the left and right sides of the near-end reinforcement structures. The tops of both far-end reinforcement structures are bolted to the steel structure bridge 2, and the lower ends of both far-end reinforcement structures are fixed to the vertical steel pipe column 1. The bottom of the vertical steel pipe column 1 extends below the ground 18 and is pre-embedded and fixed. A cast-in-place concrete column support unit is constructed within the central cavity of the vertical steel pipe column 1. The tops of the vertical steel pipe column 1 and the tops of the concrete column support unit are fixed to the steel structure bridge 2 by several expansion bolts 3.

[0029] This device provides vertical support to the corresponding points at the bottom of the steel structure bridge 2 through the vertical steel pipe column 1 and the central concrete column support unit; in the lateral part, the support range is extended through the cooperation of the side end reinforcement structure and the far end reinforcement structure, which effectively ensures the support effect.

[0030] By combining the vertical steel pipe column 1 with the concrete column support unit in the central cavity, a composite support structure is formed by utilizing the rigidity of the steel pipe and the compressive strength of the concrete column. Compared with single-material support, this structure can more effectively distribute the load and improve the support performance. At the same time, by forming multiple layers of lateral support through near-end and far-end reinforcement structures, the support range is expanded and the overall stability of the structure is enhanced. This achieves effective vertical and lateral support for the steel structure bridge 2, ensuring the support effect, structural stability, and effectively improving the load-bearing capacity and stability of the steel structure bridge.

[0031] Based on any of the above technical solutions, a further optimization is made as follows: the proximal reinforcement structure includes a constraint cylinder 4 fixedly sleeved on the upper outer side wall of the vertical steel pipe column 1. The constraint cylinder 4 is fixedly connected to the vertical steel pipe column 1 by a number of main bolts 5. On both sides of the upper part of the constraint cylinder 4, proximal U-shaped connecting brackets 7 are integrally formed and connected by proximal connecting plates 6. The proximal U-shaped connecting brackets 7 are clamped on both sides of the outer side wall of the steel structure bridge 2. The U-shaped cavity of the proximal U-shaped connecting bracket 7 is sleeved on both sides of the outer side wall of the steel structure bridge 2 and fixed by side connecting bolts 8 at corresponding positions.

[0032] The vertical steel pipe column 1 is laterally connected and fixed to the steel structure bridge by the constraint cylinder 4 and the near-end U-shaped connecting bracket 7, forming a lateral support structure. This achieves a firm connection between the vertical steel pipe column 1 and the outer wall of the steel structure bridge, facilitating installation and disassembly, improving the reliability and stability of the lateral support, and enhancing the connection strength between the entire reinforcement support device and the steel structure bridge. It provides lateral support force for the steel structure bridge, ensuring the stability of the steel structure bridge under lateral loads.

[0033] The design of the constraint cylinder 4 and the near-end U-shaped connecting bracket 7 being integrally formed by the near-end connecting plate 6 integrates the connection structure and the support structure together, simplifying the installation process. At the same time, the design of the U-shaped connecting bracket can be tightly clamped to the outer wall of the steel structure bridge, increasing the contact area and making the connection more stable.

[0034] Based on any of the above technical solutions, a further optimization is made as follows: the distal reinforcement structure includes distal U-shaped connecting brackets 9 spaced apart on the outer side of the corresponding proximal U-shaped connecting brackets 7. The distal U-shaped connecting brackets 9 are engaged with both sides of the outer wall of the steel structure bridge 2. The U-shaped cavity of the distal U-shaped connecting brackets 9 is sleeved on both sides of the outer wall of the steel structure bridge 2 and fixed by side connecting bolts 8 at corresponding positions. A distal connecting plate 10 is integrally formed on the side of the distal U-shaped connecting brackets 9 facing the vertical steel pipe column 1. The lower end of the distal connecting plate 10 is vertically arranged and fixedly arranged relative to the vertical steel pipe column 1.

[0035] The remote reinforcement structure is connected to the steel bridge via the remote U-shaped connecting bracket 9, and the remote connecting plate 10 is connected to the vertical steel pipe column 1, further expanding the lateral support range.

[0036] The range of lateral support has been expanded, resulting in a more uniform distribution of support force. This further enhances the lateral stability and load-bearing capacity of steel bridge structures and improves the reliability of the entire reinforcement and support device.

[0037] Based on the near-end reinforcement structure, the support range is further extended outward to cooperate with the near-end reinforcement structure to form a wider lateral support structure, thereby improving the lateral reinforcement effect of the steel bridge.

[0038] In addition, the far-end reinforcement structure and the near-end reinforcement structure form a multi-layered lateral support structure with intervals. Through the design of the far-end U-shaped connecting bracket 9 and the far-end connecting plate 10, the support range can be flexibly expanded. This layered support design can be used to reinforce the steel structure bridge according to the stress requirements of different parts. Compared with a single lateral support structure, it has stronger adaptability and innovation.

[0039] Based on any of the above technical solutions, a further optimization is made as follows: a number of horizontal connecting bolts 11 are arranged at intervals along the front-back direction in the middle of the vertical steel pipe column 1. Both ends of each horizontal connecting bolt 11 penetrate to the outside of the far end connecting plate 10 and are connected and fixed by locking nuts 12 to the two far end connecting plates 10, the constraint cylinder 4 and the vertical steel pipe column 1.

[0040] The distal connecting plate 10, the constraint cylinder 4, and the vertical steel pipe column 1 are connected laterally by the horizontal connecting bolts 11 to form a lateral constraint, which enhances the overall structure, improves the connection strength and rigidity between the vertical steel pipe column 1, the constraint cylinder 4, and the distal connecting plate 10, prevents relative displacement between the components, and enhances the stability and wind and earthquake resistance of the entire reinforcement support device.

[0041] Based on any of the above technical solutions, a further optimization is made as follows: the concrete column support unit includes a concrete column 13 cast and formed inside the central cavity of the vertical steel pipe column 1, the lower end of the concrete column 13 extends below the ground 18 and is fixedly embedded, and the top of the concrete column 13 is bolted and fixed to the bottom of the steel structure bridge 2 by expansion bolts 3.

[0042] The concrete column 13 and the vertical steel pipe column 1 jointly bear the vertical load, and are fixed to the ground 18 and the steel structure bridge by pre-embedded and expansion bolts 3.

[0043] The concrete column 13 has high compressive strength. When combined with the vertical steel pipe column 1, it significantly enhances the vertical support capacity, improves the overall support effect of the device on the steel structure bridge, and enables the steel structure bridge to withstand greater loads.

[0044] The concrete column 13 is placed in the central cavity of the vertical steel pipe column 1 to form a steel pipe concrete column composite structure. This fully utilizes the restraining effect of the steel pipe on the concrete column and the compressive strength of the concrete column. Compared with using steel pipe or concrete column alone, it can more effectively improve the load-bearing capacity and ductility of the component.

[0045] Based on any of the above technical solutions, a further optimization is made as follows: several interlocking teeth 14 are integrally formed and fixed on both sides of the inner wall of the central cavity of the vertical steel pipe column 1 from top to bottom. Each interlocking tooth 14 is cast inside the concrete column 13, and the interlocking teeth 14 on both sides are staggered.

[0046] During the pouring of the concrete column 13, the interlocking teeth 14 are embedded in the concrete column. The tooth-like structure increases the friction and mechanical interlocking force between the vertical steel pipe column and the concrete column 13, preventing relative sliding between the two.

[0047] This effectively enhances the connection strength and integrity between the vertical steel pipe column 1 and the concrete column 13, enabling them to work together better and share the load, thus improving the reliability and stability of the entire support structure.

[0048] By setting interlocking teeth 14 on the inner wall of the vertical steel pipe column and forming an interlocking structure with the concrete column, this simple and effective connection method breaks through the limitation of traditional steel pipe and concrete column connection relying on friction, increases mechanical interlocking force, and can significantly improve connection strength without significantly increasing cost.

[0049] Based on any of the above technical solutions, a further optimization is made as follows: several anti-detachment rebar heads 15 are placed overlapping from top to bottom inside the central cavity of the vertical steel pipe column 1, and both ends of each anti-detachment rebar head 15 abut against the inner side wall of the central cavity of the vertical steel pipe column 1, and each anti-detachment rebar head 15 is cast inside the concrete column 13.

[0050] The anti-detachment rebar head 15 is embedded in the concrete column 13 during the pouring of the concrete column. The rebar head ends abut against the inner wall of the vertical steel pipe column, preventing the concrete column 13 from falling off in the vertical direction.

[0051] This further enhances the reliability of the connection between the concrete column 13 and the vertical steel pipe column 1, prevents the concrete column 13 from falling out of the central cavity of the vertical steel pipe column, improves the safety and stability of the structure, and reduces the risks during construction and use.

[0052] Example 2: Compared with Example 1, this example also includes the following technical features: Based on any of the above technical solutions, the bottom of the concrete column 13 is lower than the bottom of the vertical steel pipe column 1.

[0053] The bottom of the concrete column 13 is lower than the bottom of the vertical steel pipe column 1, which makes the concrete column 13 buried deeper below the ground 18, providing more stable support for the entire reinforcement support device through a deeper foundation.

[0054] The overall stability of the device is enhanced, enabling it to better adapt to different geological conditions. Especially in cases of poor geological conditions, the deeper concrete column foundation 13 can provide greater tensile and compressive strength, ensuring the reliability of the device.

[0055] Based on any of the above technical solutions, a further optimization is made as follows: a number of reinforcing ribs 16 are fixedly welded at intervals along the outer side wall of the vertical steel pipe column 1 above the ground 18, and the lower part of each reinforcing rib 16 extends to the ground 18 and is pre-embedded and fixed.

[0056] The reinforcing rib 16 increases the rigidity of the vertical steel pipe column 1 near the ground, and the connection with the ground through the pre-embedded part enhances the ability of the vertical steel pipe column to resist lateral forces.

[0057] It improves the stability of the vertical steel pipe column 1 in the area above the ground 18, prevents the vertical steel pipe column 1 from buckling or deforming near the ground, and enhances the load-bearing capacity and wind and earthquake resistance of the device near the ground.

[0058] The reinforcing rib 16 not only strengthens the vertical steel pipe column 1 above the ground, but also extends to the ground below for pre-embedded fixation, forming a vertically continuous reinforcing structure that connects the structures above and below the ground, allowing the load to be transferred to the ground more effectively. Compared with the traditional method of setting a reinforcing structure only above the ground, this design has a better overall strengthening effect.

[0059] Based on any of the above technical solutions, a further optimization is made as follows: a steel structure truss frame 17 is welded and fixed to the lower outer wall of the vertical steel pipe column 1 below the ground, and the steel structure truss frame 17 is pre-embedded and fixed.

[0060] The steel truss frame 17 has high strength and rigidity, which can enhance the support structure of the vertical steel pipe column 1 below the ground, distribute the load of the underground part, and improve the bearing capacity of the foundation.

[0061] It improves the stability and load-bearing capacity of the vertical steel pipe column 1 below ground, enabling it to better adapt to complex geological conditions, prevent deformation or damage to the underground part of the vertical steel pipe column, and ensure the safety and reliability of the entire reinforcement support device; the truss frame can more effectively distribute the load and improve the integrity and deformation resistance of the foundation.

[0062] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0063] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A steel structure bridge reinforcement and support device, characterized in that: The system includes vertical steel pipe columns supported at the bottom of a steel structure bridge. Near-end reinforcement structures are installed on the upper sides of both sides of the vertical steel pipe columns. The tops of the two near-end reinforcement structures are fixedly connected to the outer side walls of the steel structure bridge. Far-end reinforcement structures are installed on the left and right sides of the near-end reinforcement structures. The tops of both far-end reinforcement structures are bolted to the steel structure bridge, and the lower ends of both far-end reinforcement structures are fixedly connected to the vertical steel pipe columns. The bottom of the vertical steel pipe columns extends below ground level and is pre-embedded and fixed. A cast-in-place concrete column support unit is constructed within the central cavity of the vertical steel pipe columns. The tops of both the vertical steel pipe columns and the concrete column support units are fixedly connected to the steel structure bridge by several expansion bolts.

2. The steel structure bridge reinforcement and support device according to claim 1, characterized in that: The proximal reinforcement structure includes a constraint cylinder fixedly sleeved on the upper outer side wall of the vertical steel pipe column. The constraint cylinder is fixedly connected to the vertical steel pipe column by a number of main bolts. On both sides of the upper part of the constraint cylinder, proximal U-shaped connecting brackets are integrally connected by proximal connecting plates. The proximal U-shaped connecting brackets are engaged with both sides of the outer side wall of the steel structure bridge. The U-shaped cavity of the proximal U-shaped connecting bracket is sleeved on both sides of the outer side wall of the steel structure bridge and fixed by side connecting bolts at corresponding positions.

3. The steel structure bridge reinforcement and support device according to claim 2, characterized in that: The distal reinforcement structure includes distal U-shaped connecting brackets spaced apart on the outer side of the corresponding proximal U-shaped connecting brackets. The distal U-shaped connecting brackets are engaged with both sides of the outer wall of the steel structure bridge. The U-shaped cavity of the distal U-shaped connecting bracket is sleeved on both sides of the outer wall of the steel structure bridge and fixed by side connecting bolts at corresponding positions. A distal connecting plate is integrally formed on the side of the distal U-shaped connecting bracket facing the vertical steel pipe column. The lower end of the distal connecting plate is vertically arranged and fixed relative to the vertical steel pipe column.

4. The steel structure bridge reinforcement and support device according to claim 3, characterized in that: Several horizontal connecting bolts are spaced apart along the front-back direction in the middle of the vertical steel pipe column. Both ends of each horizontal connecting bolt penetrate to the outside of the distal connecting plate and are connected and fixed by locking nuts to the two distal connecting plates, the constraint cylinder and the vertical steel pipe column.

5. The steel structure bridge reinforcement and support device according to claim 4, characterized in that: The concrete column support unit includes a concrete column cast inside the central cavity of the steel structure bridge. The lower end of the concrete column extends below the ground and is fixedly embedded. The top of the concrete column is bolted to the bottom of the steel structure bridge by expansion bolts.

6. The steel structure bridge reinforcement and support device according to claim 5, characterized in that: On both sides of the inner wall of the central cavity of the vertical steel pipe column, a number of interlocking teeth are integrally formed and fixed from top to bottom. Each of the interlocking teeth is cast inside the concrete column, and the interlocking teeth on both sides are staggered.

7. The steel structure bridge reinforcement and support device according to claim 6, characterized in that: Several anti-detachment reinforcing bar heads are placed overlapping from top to bottom inside the central cavity of the vertical steel pipe column. Both ends of each anti-detachment reinforcing bar head abut against the inner side wall of the central cavity of the vertical steel pipe column, and each anti-detachment reinforcing bar head is cast inside the concrete column.

8. The steel structure bridge reinforcement and support device according to claim 7, characterized in that: The bottom of the concrete column is lower than the bottom of the vertical steel pipe column.

9. The steel structure bridge reinforcement and support device according to claim 8, characterized in that: Several reinforcing ribs are fixedly welded at intervals along the outer side wall of the vertical steel pipe column above the ground. The lower part of each reinforcing rib extends below the ground and is pre-embedded and fixed.

10. The steel structure bridge reinforcement and support device according to claim 9, characterized in that: A steel truss frame is welded and fixed to the lower outer wall of the vertical steel pipe column below the ground, and the steel truss frame is pre-embedded and fixed.

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